bonnet RENAULT SCENIC 2008 J84 / 2.G Passenger Comparment Connection Unit Workshop Manual

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Introduction87B
87B-5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Introduction87B
87B-5V9 MR-372-J84-87B000$043.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
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.
Physical 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.
Continuity, insulation and resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or with another wire.
If a fault is detected, repair or replace the wiring harness.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B-119
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B-119V9 MR-372-J84-87B000$387.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
KEYLESS VEHICLE FUNCTION
Sub-function: Access (continued 1):
*lckg: Locking
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(fault reading and configuration checks).
Application condition: engine stopped, + after ignition feed present.
Sub-functionParameter or
Status
checked Action Display and Notes Fault finding
AccessET056:Rear driver side
optical sensorACTIVE
INACTIVEIn the event of a fault,
consult the interpretation
of status ET056.
ET057:Passenger side
front/rear optical
sensorACTIVE
INACTIVEIn the event of a fault,
consult the interpretation
of status ET057.
ET058:Lckg* button on
driver's side
handles DEPRESSED
RELEASEDIn the event of a fault,
consult the interpretation
of status ET058.
ET059:Lckg* buttons on
passenger's side
handlesDEPRESSED
RELEASEDIn the event of a fault,
consult the interpretation
of status ET059.
ET060:Tailgate locking
buttonDEPRESSED
RELEASEDIn the event of a fault,
consult the interpretation
of status ET060.
ET086:Electric child
safety lockACTIVE
INACTIVESignal interpreted if
vehicle configured WITH
Child safety lock.
ET053:Driver's doorOPEN
CLOSED In the event of a fault, refer
to the interpretation of
status ET053.
ET042:Passenger doorOPEN
CLOSED In the event of a fault, refer
to the interpretation of
status ET042.
ET194:Passenger's
door or bonnetOPEN
CLOSED In the event of a fault, refer
to the interpretation of
status ET042.
ET051:Rear left-hand
doorOPEN
CLOSED In the event of a fault, refer
to the interpretation of
status ET051.
ET052:Rear right-hand
doorOPEN
CLOSED In the event of a fault, refer
to the interpretation of
status ET052.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
87B
87B -142
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Status summary table
87B
87B -142V9 MR-372-J84-87B000$430.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
Tool status Diagnostic tool title Vdiag
ET113Automatic lighting button
V44, V48, V4C,
V4D, V4F, V50 ET114Wiping request via rain sensor
ET115Request to switch on lights by light sensor
ET118Rain sensor sensitivity ring position
ET119UCH request to steering column lock
ET159Rear left-hand door child safety lock
V4D, V4F, V50
ET160Rear right-hand door child safety lock
ET169Engine V44, V48, V4C,
V4D, V4F, V50
ET194Passenger's door or bonnet V4C, V4D, V4F,
V50
ET195UCH frequency (in MHz)
V44, V48, V4C,
V4D, V4F, V50
ET205Type of UCH radio frequency aerial
ET229Injection immobiliser code V4F, V50
ET230Child safety lock V4D, V4F, V50
ET233Child safety lock switchV44, V48, V4C,
V4D, V4F, V50
ET248Steering column lock immobiliser code
V4F, V50
ET250Injection