List of fault codes for the brake system control unit (BS) of Mercedes-Benz Trucks

See also: Mercedes-Benz Trucks Service Repair Manuals

Mercedes-Benz

The list of Fault Codes for brake system (BS) of Mercedes-Benz truck such as: Actros, Atego, Axor

0160 Communication between vehicle CAN data is faulty.
0162 Speed ​​signal on the CAN bus from the tachograph has a fault
0163 CAN short or open cable
0166 The signal on the CAN bus from the NR control unit of motion control is missing or has
malfunction
0167 The signal on the CAN bus from the GS motion control unit is missing or has
malfunction
0168 The signal on the CAN bus from the control unit FR of the traffic control is missing or has
malfunction
0169 CAN bus signal from the INS control unit. The tool is missing or has a fault.
0170 CAN signal from the retarder control unit is missing or has a fault
0260 CAN signal on the trailer has a fault
0263 CAN signal on the trailer is open
0275 CAN-High tire on the trailer has a fault
0276 CAN-Low tire on the trailer has a fault
0300 CAN bus brake system has a fault
0360 CAN bus brake system has a fault
0363 CAN bus brake system has a break
1001 Overvoltage at terminal 15
1002 Insufficient voltage or faulty contact at terminals 15, 30a and 30b
1010 BS control unit anti-lock system faulty
1011 BS control unit anti-lock system faulty
1012 BS control unit anti-lock system incorrectly parameterized
1014 EPS control unit (BS) faulty
1094 Different size tires on car
1102 Insufficient voltage or faulty contact on terminal 30a
1103 Terminal 30a is open
1202 Insufficient voltage or faulty contact on terminal 30b
1203 terminal 30b is open
1302 Insufficient voltage or faulty contact on terminal 15
1404 Voltage supply cable of the “24V” sensor has a short to ground
1405 Voltage supply cable of the “24V” sensor has a short to positive
1505 BS control unit has a short circuit to positive at the output X2 15/7
OR
Axial load modulator voltage supply cable has a short to positive

1604 BS control unit has a short to ground at output X2 15/15
1605 BS control unit has a short circuit to positive at the output X2 15/15
2003 ASR solenoid valve is open
2004 ASR solenoid valve has a short to ground
2005 ASR solenoid valve has a short to positive
2012 ASR outage incorrectly parameterized
2103 Trailer disconnection: output signal is open
2104 Trailer disconnection: the output signal has a short to ground
2105 Trailer disconnection: the output signal has a short to positive
2112 “Trailer off” output signal incorrectly parameterized.
2203 Overpressure valve has open circuit.
2204 Overpressure valve has a short to ground
2205 Overpressure valve has a short to positive
2291 Overpressure valve: overpressure not holding
2303 Pressure limiting valve is open.
2304 Pressure limiting valve has a short to ground.
2305 Pressure limiting valve has short circuit to positive
3020 The ABS solenoid valve on the front axle on the right has an open on pin 3
3021 The ABS magnetic valve on the front axle on the right has a short to ground on pin 3
3022 The ABS magnetic valve on the front axle on the right has a short to positive on pin 3
3023 The ABS magnetic valve on the front axle on the right has an open on pin 2
3026 The ABS magnetic valve on the front axle on the right has an open on pin 1
3027 The ABS magnetic valve on the front axle on the right has a short to ground on pin 1
3028 The ABS magnetic valve on the front axle on the right has a short to positive on pin 1
3029 The ABS magnetic valve on the front axle on the right has a third-party excitement
3120 The ABS solenoid valve on the front axle on the left has an open on pin 3
3121 The ABS solenoid valve on the left front axle has a short to ground on pin 3
3122 The ABS magnetic valve on the left front axle has a short to positive on pin 3
3123 The ABS solenoid valve on the front axle on the left has an open on pin 2
3126 The ABS solenoid valve on the front axle on the left has an open on pin 1
3127 The ABS solenoid valve on the front left axle has a short to ground on pin 1

3128 The ABS magnetic valve on the left front axle has a short to positive on pin 1
3129 The ABS magnetic valve on the front axle on the left has a third-party excitement
3604 ABS solenoid valve on the front axle on the right and on the rear axle on the left has a short to ground
on pin 2
3605 The ABS magnetic valve on the front axle on the right and on the rear axle on the left has a short to positive
on pin 2
4040 Speed ​​sensor on the front axle on the right has a break
4041 Speed ​​sensor on the front axle on the right has a short to ground
4042 Speed ​​sensor on the front axle on the right has a short to positive
4044 The rotational speed sensor on the front axle has a coil
4045 The pole wheel on the front axle on the right is defective
4046 A rotational speed sensor on the front axle to the right emits noise (crackling)
4047 Pole wheel on the front axle on the right reeling in a thrust place
4048 Speed ​​sensor on the front axle on the right has an air gap
4049 Wheel speed on the speed sensor “front axle to the right” is not reliable
4140 Speed ​​sensor on the left front axle has a break
4141 Speed ​​sensor on the left front axle has a short to ground
4142 Speed ​​sensor on the front left axis has a short to positive
4144 The speed sensor on the left-hand front axle has a coil
4145 The pole wheel on the left front axle is defective
4146 A rotational speed sensor on the left-hand front axle emits noise (crackling)
4147 The pole wheel on the left front axle staggers in a stubborn position.
4148 Speed ​​sensor on the left front axle has an air gap
4149 Wheel speed on the speed sensor “front axle left” is not reliable
4240 Speed ​​sensor on the rear axle on the right has a break
4241 The speed sensor on the rear axle on the right has a short to ground
4242 Speed ​​sensor on the rear axle on the right has a short to positive
4244 The speed sensor on the rear axle on the right has a coil closure
4245 The pole wheel on the right rear axle is defective
4246 The rotational speed sensor on the rear axle on the right produces noise (crackling)
4247 The pole wheel on the right rear axle staggers in a fixed place.
4248 Speed ​​sensor on the rear axle on the right has an air gap
4249 Wheel speed on the speed sensor “rear axle to the right” is not reliable
4340 Speed ​​sensor on the left rear axle has a break
4341 The speed sensor on the left rear axle has a short to ground
4342 Speed ​​sensor on the left rear axle has a short to positive
4344 The rotational speed sensor on the left-hand rear axle has a coil
4345 The pole wheel on the left rear axle is defective
4346 A rotational speed sensor on the left-hand rear axle emits noise (crackling)
4347 The pole wheel on the left rear axle staggers in a fixed place.
4348 Rotational speed sensor on the left rear axle has an air gap
4349 Wheel speed on the speed sensor “rear axle left” is not reliable
5042 Brake pad wear sensor on the front axle on the right has a short to positive
5043 Brake pad wear sensor on the front axle on the right has no signal
5142 Brake pad wear sensor on the left front axle has a short to positive

5143 Brake pad wear sensor on the front axle on the left no signal
5204 Power cable brake pad wear sensor on the front axle has a short to ground
5205 Power cable brake pad wear sensor on the front axle has a short to positive
5342 Brake pad wear sensor on the rear axle on the right has a short to positive
5343 Brake pad wear sensor on the rear axle to the right no signal
5442 Brake pad wear sensor on the left rear axle has a short to positive
5443 Brake pad wear sensor on the rear axle on the left no signal
5504 Power cable brake pad wear sensor on the rear axle has a short to ground
5506 Power cable brake pad wear sensor on the rear axle has a short to positive
6000 Brake pedal sensor defective
6092 Brake pedal sensor: the signal contains a fault
6140 Brake switch K1: the signal has a break
6141 Brake switch K1: signal short circuit to ground
6240 Brake switch K2: the signal has a break
6241 Brake switch K2: signal short circuit to ground
6341 Brake pedal sensor K1: the position of the pedal has a short to ground
6343 Brake pedal sensor K1: pedal position no signal
6441 Brake pedal sensor K2: the position of the pedal has a short to ground
6443 Brake pedal sensor K2: pedal position no signal
7000 Proportional Relay Valve Faulty
7096 Proportional relay valve has invalid pressure parameter.
7104 Proportional relay valve has a short to ground on track X4 12/1
7105 Proportional relay valve has a short circuit to positive on contact X4 12/1
7106 The power cable of the proportional relay valve has a break
7107 Proportional relay valve has a short to ground on track X4 12/2
7108 Proportional relay valve has a short circuit to positive on contact X4 12/2
7109 Proportional relay valve has a break on the contacts X4 12/1 and X4 12/2
7129 Proportional relay valve has external excitation.
7242 Proportional Relay Valve: pressure sensor has a short to positive
7243 Proportional relay valve: pressure sensor has a break, no signal, or short
closure

7300 Axle axle load modulator faulty
7313 Axial load modulator: wrong type of modulator set
7314 Axial load modulator produces invalid data.
7364 Data transmission on the CAN bus of the brake system has a fault
7365 Data transfer between modulator and electronics. FDR has a fault.
7392 Axial load modulator: signal equalization contains a fault
7395 Axial load modulator: auxiliary pressure regulator
7500 Trailer control valve defective
7512 Trailer control valve incorrectly parameterized.
7596 Trailer control valve has invalid pressure setting.
7604 Trailer control valve has a short to ground on track X2 15/10
7605 Trailer control valve has a short circuit to positive to contact X2 15/10
7606 The power cable of the trailer control valve voltage is open
7607 Trailer control valve has a short to ground on track X2 15/11
7608 The control valve of the trailer has a short circuit to positive to the contact X2 15/11
7609 The control valve of the trailer has a break on the ground per contact X2 15/10 or X2 15/11
7629 trailer control valve has a third-party excitement
7742 Trailer control valve: pressure sensor has a short to positive
7743 Trailer control valve: pressure sensor has open, no signal or short circuit
8090 Brake circuit on the rear axle: unreliable overpressure
8193 Wheel brakes are thermally overloaded.
9002 Electronics FDR has a low voltage at terminal X2 15/15
9010 FDR electronics faulty
9011 FDR electronics faulty
9012 FDR electronics incorrectly parameterized in BS control unit
9013 Incorrect FDR electronics installed
9051 FDR electronics have the wrong installation location.
9052 The FDR electronics matching process is not completed.
9064 Communication between CAN tires of brake system has a fault
9065 Communication between CAN tires of brake system has a fault
9502 Steering Angle Sensor Low Voltage
9510 Steering angle sensor defective
9512 Steering wheel angle sensor incorrectly parameterized in BS control unit
9543 Steering wheel angle sensor does not display any measurable parameters.
9550 Steering Angle Sensor Provides Invalid Data
9563 Communication between modules on the CAN tires of the brake system has a fault
9565 Communication between modules on the CAN tires of the brake system has a fault