85A-5
MR-413-X44-85A000$100_eng.mif
V1
WIPERS - WASHERS
Fault finding - Introduction85A
4. FAULT FINDING PROCEDURE (CONTINUED)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored to
present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.
85A-7
MR-413-X44-85A000$200_eng.mif
V1
85A
WIPERS - WASHERS
Fault finding - List and location of components
1UCH
2Passenger compartment fuse and relay box
3Combined wiper-washer
4Windscreen wiper motor
5Rear screen wiper motor
6Front and rear screen washer pump
7Light and rain sensor
8Exterior temperature sensorENGINE HARNESS
FRONT ENGINE HARNESS & PROJADD
DOOR WIRING
CEILING WIRING
PASSENGER COMPARTMENT WIRING
REAR BUMPER WIRING
TAILGATE WIRING
0000000033
MR-413-X44-85A000$200_eng.mif
85A-8
MR-413-X44-85A000$300_eng.mif
V1
85A
WIPERS - WASHERS
Fault finding - Operating diagram
List of components and associated component codes:
Component code Component
1016 Passenger compartment fuse box
645 UCH
247 Instrument panel
677 Washer pump
145 Combined wiper-washer
212 Windscreen wiper motor
1415 Light / rain sensor
211 Rear screen wiper motor
MR-413-X44-85A000$300_eng.mif
