Renault Trucks Engine DC11 (for Kerax and Premium) Diagnostics Fault Codes

Diagnostics using blink codes (dCi 11 B43)

The blink code procedure allows only present faults to be visualized. (The RENAULT TRUCKS diagnostics tool serves to visualize present faults and memorized faults).

Activation of the procedure

On the cruise control stalk switch:

Move ring (1) to “OFF”.
Turn ring (2) to bring “R+” or “S-” opposite the mark and hold it there, until the light goes out.

The test lights (3 – 4) signal present faults by means of an easy-to-decipher code.

The fault code number is defined by two series of short flashes separated by the light going out for 5 seconds.

By counting the flashes in each series, two numbers can be formed:

The two numbers correspond to a fault code number. Each fault has a precise meaning.
After displaying the fault code number, the test lights go out and come on again as long as the fault persists.
Other faults may exist. Turn the ring (2) again to bring “R+”
or “S–” opposite the mark for each other present fault.

Interpretation of fault code numbers

After activating the procedure:

The test light emits a series of flashes.
The test light stays off for 5 seconds.
The test light emits a new series of flashes.
The test light stays off for 5 seconds.
The display cycle is repeated continuously

By counting the flashes in each set, a two-figure combination is obtained:

The first series of flashes represents tens.
The second series of flashes represents units.

Erasure of fault code numbers

Only the RENAULT TRUCKS diagnostic tool DIAGNOSTICA allows memorized faults to be erased.

List of blink fault code numbers

Fault code	Nature of the incident
1 – 1	Engine oil pressure sensor
1 – 3	Boost air pressure sensor
1 – 5	Engine cooling circuit temperature sensor
1 – 6	Boost air temperature sensor
1 – 7	Engine oil temperature sensor
1 – 9	Engine oil level sensor
2 – 1	Declutching fan speed sensor
2 – 2	Flywheel speed sensor
2 – 3	High pressure pump rotating speed sensor
2 – 4	Fuel high pressure sensor
2 – 5	Sensors “+” 5 Volts current supply fault
2 – 8	Engine stop control (cab tilted)
3 – 2	Exhaust brake electrovalve
3 – 3	Jake brake solenoid valve N° 1
3 – 4	Jake brake solenoid valve N° 2
3 – 7	Declutching fan speed regulation solenoid valve
4 – 1	N° 1 cylinder fuel injector
4 – 2	N° 2 cylinder fuel injector
4 – 3	N° 3 cylinder fuel injector
4 – 4	N° 4 cylinder fuel injector
4 – 5	N° 5 cylinder fuel injector
4 – 6	N° 6 cylinder fuel injector
5 – 1	Fuel flow regulation solenoid valve N° 1
5 – 2	Fuel flow regulation solenoid valve N° 2
5 – 3	Injection pressure outside operating band

Fault code	Nature of the incident
5 – 5	Battery charge voltage incorrect
5 – 6	Communication line between engine and vehicle ECUs (CAN bus)
5 – 8	Engine ECU fault
5 – 9	Engine ECU power supply relay (R40)
6 – 1	Accelerator pedal position sensor
6 – 5	Cruise-control switch
9 – 6*	Absence of communication between vehicle and retarder ECUs

The cruise-control switch also serves to emit code (9 – 6) which does not concern the fuel-injection system. Use the RENAULT TRUCKS diagnostics tool DIAGNOSTICA.

Diagnostics using instrument panel display (dCi 11 +J01)

Button (D)

Push towards (+) or (-)

to gain access to the different menus and sub-menus
to make an adjustment or choice in the opened menu

Short pulses (V):

open a selected menu.
validate an adjustment or a choice in the menu selected
scroll through present or memorized faults in succession

Button (AE)

Short pulses:

serve to go back to the default display.
close an opened menu without validating the adjustment or choice
display the driver’s various supplementary driving menus

Meaning of fault codes

A: Fault code.
B: Fault type

Select the diagnostics menu (2)

When the menu is open, the STOP warning light comes on.

Sub-menus

2-1: Present faults
2-2: Memorized faults
2-4: Quit

In all cases, pictogram (1) indicates the function concerned. To obtain the desired function, use control (D) whenever necessary.

For “present faults” and “memorized faults” sub-menus, code number (2) characterizes the fault, or 4 dots (3) mean there are no faults.

List of fault code numbers

Fault code	Nature of incident
513	Parameter definition
529	Engine oil pressure sensor
530	Fuel filters clogging sensor
531	Boost air pressure sensor
533	Engine cooling circuit temperature sensor
534	Boost air temperature sensor
537	Engine oil level sensor
545	Declutching fan speed sensor
546	Flywheel speed sensor
547	High pressure pump rotating speed sensor
551	Clogged fuel filters
552	Engine stop control (cab tilted)
562	Exhaust brake electrovalve
563	Jake brake solenoid valve N° 1
564	Jake brake solenoid valve N° 2
565	Starter
567	Declutching fan speed regulation solenoid valve
568	Starting devices
577	N°1 cylinder fuel injector
578	N°2 cylinder fuel injector
579	N°3 cylinder fuel injector
580	N°4 cylinder fuel injector
581	N°5 cylinder fuel injector
582	N°6 cylinder fuel injector
597	Battery charge voltage incorrect
600	Engine ECU fault

Fault code	Nature of incident
613	Cruise-control switch
804	Fuel high pressure sensor
805	Sensors “+” 5 Volts current supply fault
818	Exhaust brake electrovalve
819	Jake brake solenoid valve N° 1
820	Jake brake solenoid valve N° 2
821	Starter
824	Starting devices
833	N°1 cylinder fuel injector
834	N°2 cylinder fuel injector
835	N°3 cylinder fuel injector
836	N°4 cylinder fuel injector
837	N°5 cylinder fuel injector
838	N°6 cylinder fuel injector
849	Fuel flow regulation solenoid valve N°1
850	Fuel flow regulation solenoid valve N°2
851	Injection pressure outside normal operating band
853	Battery charge voltage incorrect
854	Communication line between engine and vehicle ECUs (CAN bus)
856	Engine ECU fault
865	Accelerator pedal