Hyundai HD 65\72\78 Fault Codes List

By | 04/10/2018

Hyundai trucks HD 65\72\78 Fault Codes List

See also: Hyundai Trucks & Forklifts PDF Service Manuals

Hyundai HD 78 Fault Codes list

Hyundai HD 78

Basic OBD-II Error Codes

The fault code consists of the 1st letter, which means:

P – work code of the internal combustion engine (engine) and / or automatic transmission (automatic transmission)
B – the code of the work that is in the back of the car: electric glass lifts, airbags, central locking, etc.
C – code of the chassis (chassis)
U – communication code between electronic control units

and 4 digits, 1st is:

0 – general code for OBD-II
1 and 2 – manufacturer code
3 – reserve

2nd means:

1 and 2 – fuel system or air supply
3 – ignition system
4 – auxiliary control
5 – idling
6 – ECU or its circuit
7 and 8 – transmission

3, 4th is the ordinal number of the error.

Fault codes and descriptions

P0100 Air Flow Sensor Circuit Malfunction
P0101 Air flow sensor signal output from allowable range
P0102 Low air flow sensor output
P0103 High level output signal of the air flow sensor
P0105 Air Pressure Sensor Malfunction
P0106 ​​Air pressure sensor signal output from allowable range
P0107 Low Air Pressure Sensor Output
P0108 High level output air pressure sensor
P0110 Intake Air Temperature Sensor Malfunction
P0111 Intake air temperature sensor signal output from acceptable range
P0112 Intake Air Temperature Sensor Low Level
P0113 High intake air temperature sensor
P0115 Coolant Temperature Sensor Malfunction
P0116 Coolant temperature sensor signal output from acceptable range
P0117 Coolant Temperature Sensor Low Level
P0118 Coolant Temperature Sensor High Level
P0120 Throttle Position Sensor Malfunction “A”
P0121 Throttle Position Sensor “A” Signal Output Out Of Valid Range
P0122 Throttle Position Sensor “A” Low Output
P0123 High throttle position sensor output signal “A”
P0125 Low coolant temperature for closed loop control
P0130 Oxygen Sensor 1 (Bank 1) Faulty
P0131 Low Oxygen Sensor 1 Signal (Bank 1)
P0132 Oxygen Sensor 1 High Signal (Bank 1)
P0133 Slow Oxygen Sensor 1 Response (Bank 1) to Enrichment / Depletion
P0134 No activity of the output signal of the oxygen sensor 1 (bank 1)
P0135 Oxygen Sensor Heater 1 (Bank 1) Faulty
P0136 Oxygen Sensor 2 (Bank 1) Faulty
P0137 Oxygen Sensor 2 Output Low (Bank 1)
P0138 Oxygen Sensor 2 Output High Level (Bank 1)
P0139 Slow Oxygen Sensor 2 Response (Bank 1) to Enrichment / Depletion
P0140 No activity of the output signal of the oxygen sensor 2 (bank 1)
P0141 Oxygen Sensor Heater 2 (Bank 1) Faulty
P0142 Oxygen sensor 3 (bank 1) is faulty
P0143 Oxygen Sensor 3 Output Low (Bank 1)
P0144 Oxygen Sensor 3 Output High Level (Bank 1)
P0145 Slow Oxygen Sensor 3 Response (Bank 1) to Enrichment / Depletion
P0146 No activity of the output signal of the oxygen sensor 3 (bank 1)
P0147 Oxygen Sensor Heater 3 (Bank 1) Faulty
P0150 Oxygen Sensor 1 (Bank 2) Faulty
P0151 Low Oxygen Sensor 1 Signal (Bank 2)
P0152 High Signal of Oxygen Sensor 1 (Bank 2)
P0153 Slow Oxygen Sensor 1 Response (Bank 2) to Enrichment / Depletion
P0154 No activity of the output signal of the oxygen sensor 1 (bank 2)
P0155 Oxygen Sensor Heater 1 (Bank 2) Faulty
P0156 Oxygen sensor 2 (bank 2) is faulty
P0157 Oxygen Sensor 2 Output Low (Bank 2)
P0158 High Oxygen Sensor 2 Output (Bank 2)
P0159 Slow Oxygen Sensor 2 Response (Bank 2) to Enrichment / Depletion
P0160 No activity of the output signal of the oxygen sensor 2 (bank 2)
P0161 Oxygen Sensor Heater 2 (Bank 2) Faulty
P0162 Oxygen sensor 3 (bank 2) is faulty

P0163 Oxygen Sensor 3 Output Low (Bank 2)
P0164 Oxygen Sensor 3 Output High Level (Bank 2)
P0165 Slow Oxygen Sensor 3 Response (Bank 2) to Enrichment / Depletion
P0166 No activity of the output signal of the oxygen sensor 3 (bank 2)
P0167 Oxygen Sensor Heater 3 (Bank 2) Faulty
P0171 Mix too poor (air leaks possible)
P0172 Too rich mixture
P0173 Fuel leakage from the fuel system of the cylinder block №2
P0174 A mixture of cylinder block number 2 is too poor
P0175 A mixture of cylinder block number 2 is too rich
P0176 CHx Release Sensor (Fuel Composition) defective
P0177 CHx Sensor Signal (Fuel Composition) Out of Range
P0178 Low Compound Sensor Signal Low (Fuel Composition)
P0179 High signal level of the CHx sensor (Fuel Composition)
P0180 Fuel Temperature Sensor Circuit Malfunction
P0181 Fuel temperature sensor signal “A” out of range
P0182 Low signal temperature sensor fuel “A”
P0183 High signal level of the fuel temperature sensor “A”
P0185 Fuel Temperature Sensor Circuit Malfunction
P0186 Fuel temperature sensor “B” signal out of range
P0187 Low signal of the fuel temperature sensor “B”
P0188 High signal level of the fuel temperature sensor “B”
P0190 Fuel Rail Pressure Sensor Circuit Malfunction
P0191 Fuel rail pressure sensor signal out of range
P0192 Low Fuel Rail Pressure Sensor Signal
P0193 High signal of the fuel pressure sensor in the fuel rail
P0194 Intermittent Signal for Fuel Pressure Sensor in Fuel Rail
P0195 Engine Oil Temperature Sensor Circuit Malfunction
P0196 Engine oil temperature sensor signal out of range
P0197 Low Engine Oil Temperature Sensor Signal
P0198 High Engine Oil Temperature Sensor Signal
P0199 Intermittent signal engine oil temperature sensor
P0200 Injector Control Circuit Malfunction
P0201 Nozzle Control Circuit Malfunction
P0202 Injector Control Circuit Malfunction # 2
P0203 Nozzle Control Circuit Malfunction
P0204 Nozzle Control Circuit Malfunction
P0205 Nozzle Control Circuit Malfunction
P0206 Injector Control Circuit Malfunction # 6
P0207 Nozzle Control Circuit Malfunction
P0208 Injector Control Circuit Malfunction # 8
P0209 Nozzle Control Circuit Malfunction
P0210 Nozzle Control Circuit Malfunction # 10
P0211 Nozzle Control Circuit Malfunction
P0212 Nozzle Control Circuit Malfunction
P0213 Cold start injector control circuit malfunction # 1
P0214 Cold start injector control circuit malfunction # 2
P0215 Engine Shutdown Solenoid Fault
P0216 Injection Time Control Circuit Malfunction
P0217 Engine overheating

P0218 Transmission Overheated
P0219 Engine Overspeed Condition Too High
P0220 Throttle Position Sensor “B” Malfunction
P0221 Throttle Position Sensor “B” Signal Out of Range
P0222 Throttle Position Sensor “B” Low Signal
P0223 Throttle Position Sensor “B” Signal High
P0224 Intermittent Throttle Position Sensor Signal “B”
P0225 Throttle Position Sensor “C” Malfunction
P0226 Throttle Position Sensor Signal Outside Valid Range “C”
P0227 Throttle Position Sensor “C” Low
P0228 Throttle Position Sensor “C” Signal High
P0229 Intermittent Throttle Position Sensor “C” Signal Level
P0230 Malfunction of the primary fuel pump control circuit (control of the fuel pump relay)
P0231 Constant low level of the secondary circuit of the fuel pump
P0232 Constant high level of the secondary circuit of the fuel pump
P0233 Intermittent level of the fuel pump secondary circuit
P0235 Turbocharging Pressure Sensor Circuit Malfunction “A”
P0236 Signal from turbine sensor “A” out of range
P0237 Low level signal from the turbine sensor “A”
P0238 High level signal from the turbine sensor “A”
P0239 Turbo Charging Pressure Sensor Circuit Malfunction
P0240 Signal from turbine sensor “B” out of range
P0241 Low level signal from the turbine sensor “B”
P0242 High level signal from turbine sensor “B”
P0243 Turbine “A” Exhaust Gas Gate Solenoid Malfunction
P0244 The signal of the exhaust gas shutter coil of the turbine “A” is outside the add. range
P0245 Turbine “A” solenoid valve always open
P0246 Turbine “A” shutter solenoid always closed
P0247 Turbine Exhaust Shutter Solenoid Malfunction
P0248 The signal of the solenoid of the shutter of exhaust gases of the turbine “B” is outside the add. range
P0249 Turbine “B” shutter solenoid always open
P0250 Turbine “B” solenoid valve always closed
P0251 Turbine Injection Pump Malfunction
P0252 Turbine Injection Pump Signal “A” Not Permissible Range
P0253 Turbine Injection Pump “A” Low Signal
P0254 High level signal of the injection pump of the turbine “A”
P0255 Intermittent Signal Level Turbine Injection Pump “A”
P0256 Turbine Injection Pump Malfunction
P0257 Turbine Injection Pump Signal “B” Out of Range
P0258 Low level signal of the injection pump of the turbine “B”
P0259 High level signal of the injection pump of the turbine “B”
P0260 Intermittent Signal Level of Turbine Injection Pump “B”
P0261 Cylinder Nozzle # 1 – Ground
P0262 No.1 Cylinder Nozzle – Open or Short to + 12V
P0263 Cylinder Nozzle # 1 – injector driver malfunction
P0264 No.2 Cylinder Nozzle – Ground Loop
P0265 Cylinder Nozzle 2 – open circuit or short to + 12V
P0266 Cylinder 2 injector – injector driver malfunction
P0267 Nozzle Cylinder No.3 – Ground
P0268 No.3 cylinder nozzle – open circuit or short circuit to + 12V
P0269 Nozzle Cylinder No.3 – Injector Driver Malfunction
P0270 Cylinder Nozzle # 4 – Ground
P0271 Cylinder Nozzle 4 – open circuit or short to + 12V
P0272 Nozzle Cylinder No.4 – Injector Driver Malfunction
P0273 Cylinder Nozzle # 5 – Ground Loop
P0274 Cylinder Nozzle # 5 – open or short to + 12V
P0275 Nozzle Cylinder No.5 – Nozzle Driver Malfunction
P0276 Cylinder Nozzle # 6 – Ground
P0277 Cylinder Nozzle # 6 – open or short to + 12V
P0278 Cylinder Nozzle # 6 – Injector Driver Malfunction
P0279 Cylinder Nozzle # 7 – Ground
P0280 Cylinder Nozzle 7 – open circuit or short to + 12V
P0281 Cylinder Nozzle # 7 – Nozzle Driver Malfunction
P0282 No.8 Cylinder Nozzle – Ground Loop
P0283 No.8 Cylinder Nozzle – Open or Short to + 12V
P0284 Cylinder Nozzle No.8 – Injector Driver Malfunction
P0285 Cylinder Nozzle # 9 – Ground Loop
P0286 Cylinder Nozzle # 9 – open circuit or short to + 12V
P0287 Nozzle Cylinder No.9 – Nozzle Driver Malfunction
P0288 Cylinder Nozzle # 10 – Ground
P0289 Cylinder Nozzle # 10 – open circuit or short to + 12V
P0290 Nozzle Cylinder No.10 – Nozzle Driver Malfunction
P0291 Cylinder Nozzle # 11 – Ground Loop
P0292 Cylinder Nozzle # 11 – Open or short to +12

P0293 Nozzle Cylinder No 11 – Nozzle Driver Malfunction
P0294 Cylinder Nozzle # 12 – Ground Loop
P0295 Cylinder Nozzle # 12 – open circuit or short to + 12V
P0296 Nozzle Cylinder No 12 – Nozzle Driver Malfunction
P0300 Random / Multiple Ignition Detected
P0301 Misfire detected in cylinder number 1
P0302 Misfire detected in cylinder number 2
P0303 Misfiring detected in cylinder number 3
P0304 Misfire detected in cylinder number 4
P0305 Misfiring detected in cylinder number 5
P0306 Misfire detected in cylinder number 6
P0307 Misfiring detected in cylinder number 7
P0308 Misfire detected in cylinder number 8
P0309 Misfiring detected in cylinder number 9
P0310 Misfiring detected in cylinder number 10
P0311 Misfire detected in cylinder number 11.
P0312 Misfiring detected in cylinder number 12.
P0320 Distributor Ignition Circuit Malfunction
P0321 Distributor signal out of range
P0322 Distributor signal missing
P0323 Ignition Distributor Signal Intermittent
P0325 Knock Sensor # 1 Circuit Malfunction
P0326 Knock Sensor # 1 Signal Out of Range
P0327 Knock Sensor # 1 Low
P0328 Knock Sensor No.1 Signal High
P0329 Intermittent Level 1 Knock Sensor Signal
P0330 Knock Sensor # 2 Circuit Malfunction
P0331 Knock Sensor # 2 Signal Out of Range
P0332 Knock Sensor # 2 Signal Low
P0333 High signal level of the knock sensor №2
P0334 Intermittent Knock Sensor # 2 Signal Level
P0335 Error crankshaft position sensor “A”
P0336 DPKV Error “A” (skipping one tooth)
P0337 Low or short to KPK “A”
P0338 High level or short to + 12V DPKV “A”
P0339 Intermittent DPKV “A”
P0340 Camshaft Sensor Malfunction
P0341 Camshaft sensor signal out of range
P0342 Low camshaft sensor signal
P0343 High camshaft sensor signal
P0344 Intermittent Camshaft Sensor Signal Level
P0350 Primary / Secondary Ignition Coil Malfunction
P0351 Primary / Secondary Ignition Coil “A” Malfunction
P0352 Primary / Secondary Ignition Coil “B” Malfunction
P0353 Primary / Secondary Ignition Coil “C” Malfunction
P0354 Primary / Secondary Ignition Coil “D” Malfunction
P0355 Primary / Secondary Ignition Coil “E” Malfunction
P0356 Primary / Secondary Ignition Coil F Circuit Malfunction
P0357 Primary / Secondary Ignition Coil “G” Malfunction
P0358 Primary / Secondary Ignition Coil “H” Malfunction
P0359 Primary / Secondary Ignition Coil “I” Malfunction
P0360 Primary / Secondary Ignition Coil “J” Malfunction
P0361 Primary / Secondary Ignition Coil “K” Malfunction
P0362 Primary / Secondary Ignition Coil “L” Malfunction
P0370 Timer A Signal Malfunction
P0371 Number of pulses of timer signal A above the norm
P0372 The number of pulses of the signal A timer is below normal
P0373 Unstable Timer A Signal Pulses
P0374 No Pulse Timer A Signal
P0375 Timer B Signal Failure
P0376 Number of pulses of signal B of timer higher than normal
P0377 The number of pulses of the signal B of the timer is below normal
P0378 Unstable Timer B Signal Pulses
P0379 No Pulse Timer A Signal
P0380 Incandescent Glow or Heating Circuit Malfunction
P0381 Malfunction of the glow plug or heat indicator
P0385 Crankshaft Position Sensor B Circuit Malfunction

P0386 Crankshaft Position Sensor “B” signal out of range
P0387 Low or short to KPK “B”
P0388 High level or short to + 12V DPKV “B”
P0389 Interlaced Crankshaft Position Sensor Signal “B”
P0400 Exhaust Gas Recirculation Malfunction
P0401 Ineffective Exhaust Gas Recirculation System
P0402 Excess exhaust gas recirculation (EGR) system
P0403 Exhaust Gas Recirculation Sensor Circuit Malfunction
P0404 Exhaust gas recirculation sensor signal out of range
P0405 Exhaust gas recirculation sensor signal “A” low
P0406 High signal from exhaust gas recirculation sensor “A”
P0407 Low signal from exhaust gas recirculation sensor “B”
P0408 High signal of the exhaust gas recirculation sensor “B”
P0410 Secondary air supply system malfunction
P0411 Incorrect flow through secondary air supply system
P0412 Secondary Air Supply Valve Malfunction “A”
P0413 Secondary air intake valve “A” always open
P0414 Secondary air intake valve “A” always closed
P0415 Secondary air supply valve “B” malfunction
P0416 Secondary air supply valve “B” always open
P0417 Secondary air supply valve “B” always closed
P0420 The efficiency of the catalyst system B1 below the permissible threshold
P0421 Efficiency of heating of catalysts B1 below the permissible threshold
P0422 Efficiency of the main catalyst B1 below the permissible threshold
P0423 Efficiency of Catalyst B1 Heater Below Permissible Threshold
P0424 Catalyst Heater B1 Temperature is below acceptable threshold
P0430 The efficiency of the B2 catalyst system is below the permissible threshold.
P0431 Heating efficiency of catalysts B3 below permissible threshold
P0432 The effectiveness of the main catalyst B2 below the permissible threshold
P0433 The efficiency of the catalyst heater B2 is below the permissible threshold
P0434 Catalyst B2 heater temperature below acceptable threshold
P0440 Gasoline Vapor Monitoring System Malfunction
P0441 Bad purging of the gasoline vapor recovery system
P0442 Small leak in gasoline vapor recovery system
P0443 Gasoline Venting Vent Valve Circuit Malfunction
P0444 Gasoline Venting Purge Valve Always Open
P0445 Gasoline Venting Purge Valve Always Closed
P0446 Trouble Control vapor control air valve
P0447 Vapor collection system air valve always open.
P0448 The vapor recovery air valve is always closed.
P0450 Gasoline Vapor Pressure Sensor Malfunction
P0451 Gasoline vapor pressure sensor signal out of range
P0452 Low level gasoline pressure sensor signal
P0453 High level signal of gasoline vapor pressure sensor
P0454 Intermittent Level Signal Gasoline Vapor Pressure Sensor Signal
P0455 Large leakage in gasoline vapor recovery system
P0460 Fuel Level Sensor Circuit Malfunction
P0461 Fuel Level Sensor Signal Out of Range
P0462 Low fuel level sensor signal
P0463 High signal level fuel level sensor
P0464 Intermittent Fuel Level Sensor Signal
P0465 Purge Air Flow Sensor Circuit Malfunction
P0466 Purge Air Flow Sensor Signal Out of Range
P0467 Purge Air Flow Sensor Low Signal
P0468 High Purge Air Flow Sensor Signal
P0469 Intermittent Signal Level Air Purge Sensor
P0470 Exhaust Pressure Sensor Malfunction
P0471 Exhaust Pressure Sensor Signal Out of Range
P0472 Exhaust Pressure Sensor Signal Low
P0473 Exhaust Pressure Sensor Signal High
P0474 Intermittent Exhaust Pressure Sensor Signal
P0475 Exhaust Pressure Sensor Valve Malfunction
P0476 Exhaust Pressure Sensor Valve Signal Out of Range
P0477 Exhaust Pressure Sensor Valve Low Signal
P0478 Exhaust Pressure Sensor Valve High Signal
P0479 Intermittent Exhaust Pressure Sensor Valve Signal Level
P0480 Fan Relay Control Circuit Malfunction
P0500 No vehicle speed sensor signal
P0501 Vehicle speed sensor signal out of range

P0502 Vehicle Speed ​​Sensor Signal Low
P0503 High Vehicle Speed ​​Sensor Signal
P0505 Malfunction of the regulator of idling
P0506 Malfunction of a regulator of idling – low turns
P0507 Malfunction of a regulator of idling – high turns
P0510 Throttle Trailer Malfunction
P0520 Oil Pressure Sensor Circuit Malfunction
P0521 Incorrect indicator / oil pressure sensor not adjusted
P0522 Oil Pressure Sensor Low Voltage
P0523 Oil Pressure Sensor High Voltage
P0530 A / C Coolant Pressure Sensor Circuit Malfunction
P0531 Incorrect / not adjusted air conditioning coolant pressure sensor
P0532 A / C Coolant Pressure Sensor Low
P0533 A / C Coolant Pressure Sensor High Rate
P0534 Air Conditioner Coolant Leak
P0550 Malfunction in the power steering pressure sensor circuit
P0551 Incorrect display / unregulated power steering pressure sensor
P0552 Low power steering pressure sensor
P0553 High power steering pressure sensor
P0554 Malfunction of the power steering pressure sensor
P0560 System power supply voltage below the operating threshold.
P0561 System Voltage Unstable
P0562 Low Voltage System Power
P0563 High Voltage System Power
P0565 Cruise Control Activation Signal Malfunction
P0566 Cruise Control Off Signal Malfunction
P0567 Cruise Control Continuation Signal Malfunction
P0568 Cruise Control Speed ​​Setting Signal Malfunction
P0569 Cruise Control Brake Signal Malfunction
P0570 Cruise Control Acceleration Signal Malfunction
P0571 C Malfunction in the braking switch circuit A of the cruise control system
P0572 Low cruise control switch A indicator of cruise control system
P0573 High Brake Switch A Ratio of the Cruise Control System
P0574 Cruise control system malfunction
P0575 Cruise Control System Malfunction
P0576 Cruise Control Malfunction
P0577 Cruise Control Malfunction
P0578 Cruise Control System Malfunction
P0579 Cruise Control Malfunction
P0580 Cruise Control System Malfunction
P0600 Malfunction when communicating with the system
P0601 ROM Checksum Error
P0602 Software Error Control Box
P0603 External RAM Error
P0604 Internal RAM Error
P0605 Error in memory (ROM) control unit
P0606 PCM Processor Fault
P0607 Knock channel failure
P0608 Control Unit VSS “A” Sensor Fault
P0609 Control unit VSS “B” sensor malfunction
P0620 Generator Control Circuit Malfunction
P0621 Generator lamp “L” malfunction
P0622 Fault in generator “F” block
P0650 Malfunction in the malfunction indicator lamp circuit (MIL)
P0654 Engine speed incorrectly adjusted
P0655 Malfunction in the engine warm-up lamp circuit
P0656 Malfunction in the fuel level sensor circuit
P0700 Transmission Control System Malfunction
P0701 Transmission Control System Out of Range
P0702 Electric Transmission Control System
P0703 Malfunction in torque reduction circuit sensor B when braking
P0704 Clutch Sensor Circuit Malfunction
P0705 Transmission Sensor Circuit Malfunction (PRNDL)
P0706 Incorrect rate / transmission sensor not adjusted
P0707 Low transmission sensor
P0708 High Transmission Sensor Rate
P0709 Transmission Sensor Malfunction
P0710 Malfunction in Transmission Fluid Temperature Sensor Circuit
P0711 Incorrect Transmission Fluid Temperature Sensor Indicator / Not Adjusted
P0712 Low transmission fluid temperature sensor
P0713 High transmission fluid temperature sensor
P0714 Transmission Fluid Temperature Sensor Malfunction
P0715 Malfunction in the turbine speed sensor circuit
P0716 Incorrect indicator / not adjusted turbine speed sensor
P0717 No signal from the turbine speed sensor
P0718 Turbine RPM Sensor Malfunction
P0719 Low Decrease Torque B Sensor Circuit Low
P0720 Malfunction in the shaft speed sensor circuit
P0721 Incorrect indicator / shaft speed sensor not adjusted
P0722 No signal from the shaft speed sensor
P0723 Shaft Speed ​​Sensor Malfunction
P0724 High torque sensor B deceleration circuit when braking
P0725 Malfunction in the engine speed sensor circuit
P0726 Incorrect indicator / engine speed sensor not adjusted

P0727 No signal from engine speed sensor
P0728 Engine Speed ​​Sensor Malfunction
P0730 Gearbox incorrectly adjusted
P0731 Incorrectly adjusted 1 gear
P0732 Incorrectly adjusted 2nd gear
P0733 Incorrectly adjusted 3rd gear
P0734 Incorrectly adjusted 4th gear
P0735 Incorrectly adjusted 5th gear
P0736 Incorrectly adjusted reverse gear
P0740 Clutch Circuit Malfunction
P0741 Incorrectly adjusted clutch
P0742 Damaged clutch
P0743 Electrical Damage to Clutch Circuit
P0744 Malfunction in the Clutch Circuit
P0745 Malfunction in the pressure solenoid circuit
P0746 Incorrectly adjusted pressure solenoid
P0747 Damaged Pressure Solenoid
P0748 Damage to the electrical circuit of the pressure solenoid
P0749 Pressure Solenoid Fault
P0750 Solenoid Switch A Fault
P0751 Solenoid switch A incorrectly adjusted
P0752 Damage to Solenoid Switch A
P0753 Damage to the solenoid A switch circuit
P0754 Solenoid Switch A Fault
P0755 Malfunction of solenoid switch B
P0756 Incorrectly adjusted solenoid switch B
P0757 Damage to solenoid switch B
P0758 Damage to the electrical circuit of the solenoid switch B
P0759 Malfunction of solenoid switch B
P0760 Solenoid C switch malfunction
P0761 Incorrectly adjusted solenoid switch C
P0762 Damage to Solenoid Switch C
P0763 Damage to the electrical circuit of the solenoid switch C
P0764 Solenoid C Switch Malfunction
P0765 Malfunction switch D solenoid
P0766 Incorrectly adjusted solenoid switch D
P0767 Damage to Switch D Solenoid
P0768 Damage to the electrical circuit of the switch D solenoid
P0769 Malfunction switch D solenoid
P0770 Solenoid E Switch Malfunction
P0771 Incorrectly adjusted solenoid switch E
P0772 Damage to Solenoid Switch E
P0773 Damage to the electrical circuit of the solenoid switch E
P0774 Solenoid E Switch Fault
P0780 Switch Fault
P0781 fault 1-2 switches
P0782 Malfunction 2-3 switches
P0783 fault 3-4 switches
P0784 malfunction 4-5 switches
P0785 Solenoid fault
P0786 Incorrect indicator / solenoid not adjusted
P0787 Low solenoid sensor indicator
P0788 High Solenoid Sensor Rate
P0789 Solenoid fault
P0790 Malfunction in the circuit of the switch to normal mode
P0801 Reverse Inhibit System Control Circuit Malfunction
P0803 Malfunction in the solenoid circuit of the switch 1-4
P0804 Malfunction in the control lamp circuit of the switch 1-4
Codes set to manufacturers. Depend on the brand of car.
P1000 OBD II Monitor fails test
P1001 Key On Engine Running (KOER) Self-Test not able to complete. KOER aborted
P1100 Mass Air Flow (MAF) sensor intermittent
P1101 Mass Air Flow (MAF) sensor out of Self-Test range
P1102 Low Oxygen Sensor Heater Resistance
P1106 High voltage in the intake manifold absolute pressure sensor (MAP) circuit
P1107 Low Intake Manifold Absolute Pressure Sensor (MAP) Circuit Low Voltage
P1110 Switch over valve solenoid
P1111 Intake air temperature sensor circuit (IAT) high voltage
P1112 Switch over valve 1
Low intake air temperature (IAT) sensor circuit
P1113 Switch over valve 2
P1114 Coolant Temperature (ECT) Sensor Circuit Low Voltage
P1115 High Voltage Coolant Temperature (ECT) Sensor Circuit
P1116 O2 Sensor heater Circuit (Open)
Engine temperature sensor (ECT) failed self test
P1117 Engine Temperature Sensor (ECT) sensor intermittent
P1120 Throttle Position Sensor (TP) out of range low
P1121 High Voltage in Throttle Position (TP) Sensor Circuit
P1122 Low Voltage Throttle Position (TP) Sensor Circuit
P1123 Long Term Fuel Trim Air Additive (System too Rich)
P1124 Throttle Position Sensor (TP) sensor out of Self – Test range
Long Term Fuel Trim Additive Air (System too Lean)
P1125 Throttle Position Sensor (TP) sensor circuit intermittent
Heated Oxygen Sensors (HO2Ss) not tested

Long Term Fuel Trim Multiplicative (System too Rich)
P1128 Upstream Heated Oxygen Sensors (HO2Ss) swapped from bank to bank
Long Term Fuel Trim Multiplicative (System too Lean)
P1129 Downstream Heated Oxygen Sensors (HO2Ss) swapped from bank to bank
P1130 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, adaptive fuel at limit (Bank # 1)
P1131 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, sensor indicates lean (Bank # 1))
P1132 Lack of upstream Heated Oxygen Sensor (HO2S 11) switch, sensor indicates rich (Bank # 1)
P1133 Sensor 1 HO2S
P1134 HO2S On Timer
P1136 Long Term Fuel Trim Additive Fuel (System too Rich)
P1137 Lack of Downstream Heated Oxygen Sensor (HO2S 12) switch, sensor indicates lean (Bank # 1)
Long Term Fuel Trim Additive Fuel (System too Lean)
P1138 Lack of Downstream Heated Oxygen Sensor (HO2S 12) switch, sensor indicates rich (Bank # 1)
P1140 Invalid load signal
Heated Oxygen Sensor (HO2S 21) switch, adaptive fuel at limit (Bank # 2)
Heated Oxygen Sensor (HO2S 21) P1151 Lack of upstream switch, sensor indicates lean (Bank # 2)
P1152 Lack of upstream Heated Oxygen Sensor (HO2S 21) switch, sensor indicates rich (Bank # 2)
P1157 Lack of Downstream Heated Oxygen Sensor (HO2S 22) switch, sensor indicates lean (Bank # 2)
P1158 Lack of Downstream Heated Oxygen Sensor (HO2S 22) switch, sensor indicates rich (Bank # 2)
P1171 Low level signal with CO – potentiometer
P1172 High level signal with CO – potentiometer
P1174 02 Sensor 1 Bank 1 (period monitoring)
P1176 02 Sensor 1 Bank 1 (tv monitoring)
P1200 Injector Control Circuit
P1220 Series Throttle Control system malfunction
P1224 Throttle Position Sensor B (TP-B) out of Self – Test range
P1229 Power Supply Relay Primary Circuit Voltage High
P1230 Power Supply Relay Secondary Circuit Voltage Low
P1231 Fuel pump relay circuit low with high speed pump on
P1232 Low speed Fuel Pump primary circuit malfunction
P1233 Fuel Pump Driver Module disabled or offline
P1234 Fuel Pump Driver Module disabled or offline
P1235 Fuel Pump control out of Self – Test range
P1236 Fuel Pump control out of Self – Test range
Crankshaft Position Sensor (CKP) indicator cannot be read
P1237 Fuel Pump secondary circuit malfunction
P1238 Fuel Pump secondary circuit malfunction
P1260 Hijack Attempt – Launch blocked
P1270 Engine RPM or vehicle speed limiter reached
P1285 Cylinder head temperature sensor malfunction
P1288 cylinder head temperature sensor (CHT) sensor out of Self – Test range
P1289 cylinder head temperature sensor (CHT) sensor circuit low input
P1290 cylinder head temperature sensor (CHT) sensor circuit high input
P1299 Engine over temperature condition
P1326 Knock Control Maximum Spark Limit Cylinder 1
P1327 Knock Control Maximum Spark Limit Cylinder 2
P1328 Knock Control Maximum Spark Limit Cylinder 3
P1329 Knock Control Maximum Spark Limit Cylinder 4
P1350 Spare Monitoring Line
P1351 Ignition Diagnostic Monitor (IDM) circuit input malfunction
P1356 PID
P1357 Ignition Diagnostic Monitor (IDM) pulse width not defined
P1358 Ignition Diagnostic Monitor (IDM) signal out of Self – Test range
P1359 Spark output circuit malfunction
P1361 Low Voltage Ignition Control Circuit (IC)
P1374 Crankshaft Position Sensor Frequency (CKP) Change
P1380 System Failure – Cannot Read Data
P1386 Knock control Testpulse

P1390 Octane Adjust (OCT ADJ) out of Self – Test range
P1400 Differential Pressure Feedback EGR (DPFE) sensor circuit low voltage detected
P1401 Differential Pressure Feedback EGR (DPFE) sensor circuit high voltage detected
P1405 Differential Pressure Feedback EGR (DPFE) sensor upstream hose off or plugged
P1406 Differential Pressure Feedback EGR (DPFE) sensor downstream hose off or plugged
Exhaust Gas Recirculation (EGR) Sensor Adjustment
P1408 Exhaust Gas Recirculation (EGR) flow out of Self – Test range
P1409 Canister purge valve power stage (malfunction)
Electronic Vacuum Regulator (EVR) control circuit malfunction
P1410 Canister purge valve power stage (high)
Secondary air pump relay
P1411 Secondary Air Injection system incorrect downstream flow detected
P1413 Secondary Air Injection System
P1414 Secondary Air Injection System
P1425 Canister purge valve power stage (low)
The control circuit of the valve purge adsorber circuit to earth
P1426 adsorber purge valve control circuit open
P1441 Fuel Injection System (EVAP) Consumption for Chevrolet Automobiles Only
Consumption in the evaporative emission (EVAP) system only for the Oldsmobile car
Evaporative emission control system low leak detected
Evaporative emission control system – vacuum system, purge control solenoid or vapor management valve malfunction
P1444 Purge Flow (PF) Sensor circuit low input
P1445 Purge Flow (PF) Sensor circuit high input
Unable to hold vacuum (Probe)
P1450 Unable to bleed up fuel tank vacuum
P1452 Unable to bleed up fuel tank vacuum
Evaporative emission control system control leak detected (gross leak)
P1460 Wide Open Throttle Air Conditioning Cutoff (WAC) circuit malfunction
P1461 Air Conditioning Pressure (ACP) sensor circuit low input
P1462 Air Conditioning Pressure (ACP) sensor circuit high input
P1463 Air Conditioning Pressure (ACP) sensor insufficient pressure change
P1464 Air Condition (A / C) demand out of Self – Test range
P1469 Low air conditioning cycling period
P1473 Fan secondary high with fan (s) off
P1474 Low Fan Control primary circuit malfunction
P1479 High Fan Control circuit circuit malfunction
P1480 Fan secondary low with low fan on
P1481 Fan secondary low with high fan on
P1483 Power to fan circuit over current
P1484 Open Power Ground to Variable Load Control Module (VLCM)
P1500 Fuel Pump Relay Circuit Malfunction
P1501 Immobilizer – no code or wrong code
Fuel Pump Relay – Ground
P1502 Fuel Pump Relay – Short to + 12V
Immobilizer – no signal
P1503 Immobilizer – Wrong Signal
P1504 Idle Air Control (IAC) circuit malfunction
P1505 Idle Air Control (IAC) system at adaptive clip
P1506 Idle Air Control (IAC) overspeed error
P1507 Idle Air Control (IAC) under speed error
P1509 Idle Speed ​​Control Circuit Overload
P1512 Intake Manifold Runner Control (IMRC) malfunction (Bank # 1 stuck closed)
P1513 Intake Manifold Runner Control (IMRC) malfunction (Bank # 2 stuck closed)
Idling Control Circuit Control Circuit – Ground
P1514 Idling Regulator Control Circuit – Open
P1516 Intake Manifold Runner Control (IMRC) input error (Bank # 1)
P1517 Intake Manifold Runner Control (IMRC) input error (Bank # 2)
P1518 Intake Manifold Runner Control (IMRC) malfunction (stuck open)
P1519 Intake Manifold Runner Control (IMRC) malfunction (stuck closed)
P1520 Intake Manifold Runner Control (IMRC) circuit malfunction
P1530 ​​Air Condition (A / C) clutch circuit malfunction
P1537 Intake Manifold Runner Control (IMRC) malfunction (Bank # 1 stuck open)
P1538 Intake Manifold Runner Control (IMRC) malfunction (Bank # 2 stuck open)
P1539 Power to Air condition (A / C) clutch circuit overcurrent
P1541 Fuel Pump Relay Control Circuit Break

P1550 Power Steering Pressure (PSP) sensor out of Self – Test range
P1554 Cruise Control Circuit Feedback Circuit
P1570 Open circuit of immobilizer
P1600 No connection with immobilizer
Reprogram or Replace Electronic Control Unit (ECM)
P1601 ECM Box Temperature High
P1602 Power failure controller
Knock control module
P1603 EEPROM Error
P1604 Knock Control Device
P1605 Knock Control Device
P1606 Knock Control Device
P1612 CPU reset error
P1619 Electrical Thermostat Control powerstage (too high)
P1620 ROM Error
Electrical Thermostat Control powerstage (too low)


P1621 RAM Error
P1622 EEPROM Error
Electrical Thermostat Control powerstage (Range / Perfomance)
P1625 B (+) supply to ariable load control module (VCLM) fan circuit malfunction
P1626 B (+) supply to Variable Load Control Module (VCLM) Air Condition (A / C) circuit malfunction
Loss of signal from the fuel system
P1629 No signal from fuel system.
P1635 5 Volt Circuit, Oldsmobile Car Only
5 Volt Circuit, Chevrolet Car Only
P1639 2 Volt 5 Volt, Oldsmobile Car Only
2 circuit 5 volt, only for Chevrolet car
P1640 Knock Control Device or All-Wheel Drive Module
P1641 Malfunction Indicator Lamp Control Circuit (MIL)
P1650 Power Steering Pressure (PSP) switch out of Self – Test range
P1651 Power Steering Pressure (PSP) switch input malfunction
Control circuit 1 fan relay, for Oldsmobile car only
Control circuit 1 fan relay, for Chevrolet only
P1652 Control Circuit 2 Fan Relay, Only for Oldsmobile
Control circuit 2 fan relay, for Chevrolet only
P1654 A / C Relay Control Circuit (A / C)
P1655 Evaporative Evaporation (EVAP) Solenoid Control Circuit, Oldsmobile Car Only
The control circuit of the solenoid evaporative emission system (EVAP), only for the car Chevrolet
P1662 Cruise Control System Circuit
P1663 Recharge Indicator Light
P1671 Oil Change Indicator Lamp
P1672 Low Oil Warning Lamp
P1675 Evaporative Evaporation Solenoid Control Circuit (EVAP)
P1689 Error Memory Error
P1690 Diagnostic Lamp Error
MIL-on requestsignal (Malfunction)
P1693 MIL-on requestsignal (High)
P1701 Reverse engagement error
P1703 Brake On / Off (BOO) switch out of Self – Test range
P1705 Transmission Range (TR) Sensor out of Self – Test Range
P1709 Park or Neutral Position (PNP) switch – KOEO Self – Test
P1711 Transmission Fluid Temperature (TFT) sensor out of Self – Test range
P1728 Transmission slip fault
P1729 4×4 Low switch error
P1740 Torque Control unit
P1741 Torque Converter Clutch (TCC) control error
P1742 Torque Converter Clutch (TCC) solenoid failed on (turns on MIL)
P1743 Torque Converter Clutch (TCC) solenoid failed on (turns on TCIL)
P1744 Torque Converter Clutch (TCC) system mechanically stuck in off position
P1746 Electronic Pressure Control (EPC) solenoid open circuit (low input)
P1747 Electronic Pressure Control (EPC) solenoid short circuit (high input)
P1749 Electronic Pressure Control (EPC) solenoid failed low
P1751 Shift Solenoid # 1 (SS1) performance
P1754 Coast Clutch Solenoid (CCS) circuit malfunction
P1756 Shift Solenoid # 2 (SS2) performance
P1761 Shift Solenoid # 3 (SS3) performance
P1776 Solenoid Switch Valve Latched in LR Position
P1780 Transmission Control Switch (TCS) circuit out of Self – Test range
P1781 4×4 Low switch out of Self – Test range
P1783 Transmission over temperature condition
P1788 3-2 Timing / Coast Clutch Solenoid (3-2 / CCS) circuit open
P1789 3-2 Timing / Coast Clutch Solenoid (3-2 / CCS) circuit shorted
U1021 SCP (A / C) clutch status response
U1039 SCP ​​indicating the vehicle missing or incorrect
U1051 SCP indicating the brake switch signal missing or incorrect
U1073 SCP coolant fan status
U1131 SCP
U1135 SCP indicating the signal switch signal missing or incorrect
U1256 SCP indicating a communications error
Anti-Theft System (PATS) module – engine disabled