Page 11 of 57

38C-11
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$090.mif
38C
ABS BOSCH 8.1
Vdiag No.: 18
DF001
PRESENT
OR
STOREDCOMPUTER SUPPLY VOLTAGE
1.DEF: Below minimum threshold
2.DEF: Above maximum threshold
3.DEF: Abnormal voltage
NOTESSpecial notes:
The fault is declared present during a road test at a vehicle speed > 6 mph (10 km/h).
Conditions for applying the fault finding procedure to stored faults:
Apply the fault finding procedure if the fault is present or stored.
Use the Wiring Diagrams Technical Note for KANGOO VLL.
Check the condition and position of the ABS fuses, F01 and F10 in the engine fuse and relay box, component code
710 (see MR 374, Mechanical, 81C, Fuses, Fuses: List and location of components).
Check the condition and position of the ABS fuse F17 in the passenger compartment fuse box, component code
260 (see MR 374 Mechanical, 81C, Fuses, Fuses: List and location of components).
Check the continuity between fuses F01 and F10 and connections BP14 and BP8 of the ABS computer
connector, component code 118 (presence of + before ignition feed on the connections).
Check the continuity between passenger compartment fuse F17 and connection AP5 of the ABS computer,
component code 118 (presence of + after ignition feed on the connection).
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check that the battery terminals are in good condition and properly tightened, component code 107.
Check the connections on the connector of the ABS computer, component code 118.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the earths on the MQ connections of the ABS computer, component code 118.
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
ABS8.1X76_V18_DF001
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of faults
Page 19 of 57

38C-19
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$090.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of faults38C
ABS BOSCH 8.1
Vdiag No.: 18
DF017
PRESENT
OR
STOREDCOMPUTER
1.DEF: Supply fault or internal electrical fault
2.DEF: Invalid programming / initialisation
NOTESSpecial notes:
The fault is present when the ignition is switched on.
Conditions for applying the fault finding procedure to stored faults:
Apply the fault finding procedure if the fault is present or stored.
Use the Wiring Diagrams Technical Note for KANGOO VLL.
1.DEF
NOTESNone.
Conditions for applying the fault finding procedure to
stored faults:
Apply the fault finding procedure whether the fault is present
or stored
Check the condition and position of ABS power fuses F01 and F10, in the engine compartment connection unit,
component code 710 (see MR 374, Mechanical, 81C, Fuses, Fuses: List and location of components).
Check the continuity between fuses F01 and F10 and connections BP14 and BP8 of the computer connector,
component code 118 (presence of + before ignition feed on the connections).
Check that the battery terminals are in good condition and properly tightened, component code 107.
Check the connections on the connector of the ABS computer, component code 118.
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the earths on the MQ connections of component 118.
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
ABS8.1X76_V18_DF017
Page 21 of 57
38C-21
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$090.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of faults38C
ABS BOSCH 8.1
Vdiag No.: 18
DF020
PRESENTTACHOMETRIC INDEX PROGRAMMING
NOTESNone.
The ABS BOSCH 8.1 computer with "tachometric function" must have an index value in order to calculate the
vehicle speed from the speed at which the tyres turn.
Use command VP007 Tachometric index and check that it has been taken into account using parameter PR030
Tachometric index.
IMPORTANT:
The vehicle speed information is not delivered to the other computers by the ABS computer.
The vehicle speed signal is delivered by a speed sensor located on the gearbox, which informs the
computers (instrument panel, engine management, etc.).
If the fault is still present, contact the Techline.
ABS8.1X76_V18_DF020P
Page 39 of 57

38C-39
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$150.mif
38C
ABS BOSCH 8.1
Vdiag No.: 18
AC003
AC004
AC005
AC006FRONT LEFT-HAND WHEEL SOLENOID VALVESFRONT RIGHT-HAND WHEEL SOLENOID VALVES
REAR LEFT-HAND WHEEL SOLENOID VALVES
REAR RIGHT-HAND WHEEL SOLENOID VALVES
NOTESConditions of use of the command:
Ignition on, engine stopped and vehicle speed zero.
Before running the commands, check that the battery is properly charged (see 80A,
Battery, Battery: Customer complaints).
These commands test the solenoid valves on each wheel.
Controlling the wheel solenoid valves to check the hydraulic system
Lift the vehicle in order to be able to check that the wheels turn freely. Keep the brake pedal depressed to prevent
the wheel being tested from being turned by hand (do not brake so firmly that full braking power is reached).
Select and confirm the command of the wheel being examined (e.g. Front left-hand wheel solenoid valves, etc.).
Turn the wheel concerned by hand; you should see it go through the locking/unlocking cycles.
ABS8.1X76_V18_AC003/ABS8.1X76_V18_AC004/ABS8.1X76_V18_AC005/ABS8.1X76_V18_AC006
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands
Page 40 of 57
38C-40
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$150.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
ABS BOSCH 8.1
Vdiag No.: 18
AC013WHEEL SPEED SENSOR SUPPLY TEST
NOTESConditions of use of the command:
Ignition on, engine stopped and vehicle speed zero.
Before running the command, check that the battery is properly charged (see 80A,
Battery, Battery: Customer complaints).
You must use command AC013 once only.
This command is used to check that voltage pulses of approximately 12 V are detected on the faulty sensor by a
multimeter on the connector terminals on the computer side, component codes 150, 151, 152, and 153.
Select the command AC013.
Note:
To restart an AC013 command, restart then stop the vehicle engine and ensure that the battery is properly
charged.
ABS8.1X76_V18_AC013
Page 41 of 57
38C-41
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$150.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
ABS BOSCH 8.1
Vdiag No.: 18
AC016PUMP MOTOR TEST
NOTESConditions of use of the command:
Ignition on, engine stopped and vehicle speed zero.
Before running the command, check that the battery is properly charged (see 80A,
Battery, Battery: Customer complaints).
This command is used to test the pump motor control circuit.
Select the command AC016.
The motor must run for 5 seconds.
ABS8.1X76_V18_AC016
Page 42 of 57
38C-42
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$150.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
ABS BOSCH 8.1
Vdiag No.: 18
SC001CHECK THE TARGET TEETH
NOTESConditions of use of the command:
Ignition on, engine stopped and vehicle speed zero.
Before running the command, check that the battery is properly charged (see 80A,
Battery, Battery: Customer complaints).
This command is used to check the number of teeth on the target.
Select the command SC001.
The test result should be equal to 48 or 44 teeth depending on the version.
ABS8.1X76_V18_SC001
Page 43 of 57
38C-43
AFTER REPAIRClear the computer memory using command RZ001 Fault memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-38C000$150.mif
ANTI-LOCK BRAKING SYSTEM
Fault finding – Interpretation of commands38C
ABS BOSCH 8.1
Vdiag No.: 18
SC006BLEEDING THE HYDRAULIC UNIT AND BRAKE CIRCUITS
NOTESConditions of use of the command:
Ignition on, engine stopped and vehicle speed zero.
Before running the command, check that the battery is properly charged (see 80A,
Battery, Battery: Customer complaints).
This command must be used only in the event of abnormal lengthening of brake pedal travel during a road test with
ABS regulation (the vehicle must have already been bled using the conventional procedure).
Select command SC006 and follow the instructions given by the diagnostic tool.
ABS8.1X76_V18_SC006