38C-45
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$170.mif
38C
ABS BOSCH 8.1
Vdiag No.: 18
ALP1 No dialogue with the ABS computer
NOTESUse the Wiring Diagrams Technical Note for KANGOO VLL.
Try to establish dialogue with a computer on another vehicle to check that the diagnostic tool is not faulty. If the
tool is not causing the fault and dialogue cannot be established with any other computer on the same vehicle, it
may be that a faulty computer is disrupting fault finding line HK.
Use a process of successive disconnections to locate this computer.
Check the battery voltage and carry out the necessary operations to obtain a correct voltage between 9.8 V < X <
16.7 V.
Check the presence and condition of the ABS fuses on the passenger compartment fuse box, component code
260, F17 and in the engine fuse box, component code 710, F01 and F10, (see MR 374 Mechanical, 81C, Fuses,
Fuses: List and location of components).
Check the connection of the ABS computer connector, component code 118 and the condition of its connections.
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 (good condition, not corroded, tightness of the earth
bolt on top of the ABS assembly).
Check that the supply to the computer is correct:
–Earth on the MQ connections of component 118,
–+ before ignition feed on connections BP14 and BP8 of component 118,
–+ after ignition feed on connection AP5 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.
Check the connection of the diagnostic socket connector, component code 225 and the condition of its
connections.
Check the continuity of connection HL and HK between the computer and the diagnostic socket.
If the connection is 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.
A
ABS8.1X76_V18_ALP1
ANTI-LOCK BRAKING SYSTEM
Fault finding – Fault Finding Chart
