Page 123 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -123
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check
87B
87B -123V9 MR-372-J84-87B000$387.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
KEYLESS VEHICLE FUNCTION
Sub-function: Protection
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
ProtectionET070:Start buttonPRESSED
RELEASED In the event of a fault,
consult the
interpretation of
status ET070.
ET008:blank UCHYES = If the UCH is blank.
NO = If the UCH is
programmed. In the event of a fault,
consult the
interpretation of
status ET008.
PR013:Number of cards
programmed1, 2, 3 or 4None
ET071:Unprogrammed
steering column lockYES
NO In the event of a fault,
consult the
interpretation of status
ET071.
ET119:UCH request to
steering column lockLOCKING UNLOCKINGNone
ET248:Steering column
lock immobiliser
codeINCORRECT
OKNone
ET073:Steering column
lock sensor signalFAULTY
UNLOCKED
UNDETERMINED
FALSELY TRIGGERED
SHORT CIRCUITIn the event of a fault,
consult the
interpretation of status
ET073.
ET072:Steering column
lockINCONSISTENCY
LOCKED
UNLOCKEDIn the event of a fault,
consult the
interpretation of status
ET072.
ET014:Control power levelNONE
ACCESSORIES FEED
TIMED
APCNone
Page 190 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 190
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 190V9 MR-372-J84-87B000$516.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET073
STEERING COLUMN LOCK SENSOR SIGNAL
NOTESNo faults should be present or stored.
The status should be unlocked with after ignition feed present or semi activated to
+ accessories.
Special note:
Perform locking/unlocking.
Check the power supply to the lock for 5 min after the locking-unlocking operation.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
ET073 Faulty when the steering column is not unlocked.
ET073 Short circuit when the steering column is not unlocked.
Check the condition and connection of the steering column lock connector (tabs bent, broken, oxidised, etc.).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the condition and connection of the PE2 connector of the UCH (tabs bent, broken, oxidised, etc.).
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the supply of connection 26I on the connector of component 1088.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the continuity of connection NAM on the connector of component 1088.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector; otherwise, replace the wiring.
Check the insulation and continuity of the following connections:
●Connection code 26AZ,
●Connection code 26BA,
●Connection code 26J of component 1088.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, wiring: precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET073/UCH_V48_ET073/ UCH_V4C_ET073/
UCH_V4D_ET073 /UCH_V4F_ET073/UCH_V50_ET073
Page 237 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 237
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 237V9 MR-372-J84-87B000$602.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET229
INJECTION IMMOBILISER CODE
NOTESNo faults should be present or stored.
Apply the checks only if the status remains INCORRECT after the ignition is switched
off and back on.
INCORRECT
Try to start the vehicle, ensuring that the steering column lock unlocks properly and that
the + after ignition feed has been established on the vehicle using ET014 Control
power level.
First check the operation of status ET046 Engine immobiliser.
Carry out a multiplex network test.
Run fault finding on the injection system.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_ET229/UCH_V48_ET229/ UCH_V4C_ET229/
UCH_V4D_ET229 /UCH_V4F_ET229/UCH_V50_ET229
Page 371 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -371
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
87B
87B -371V9 MR-372-J84-87B000$989mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP46 Steering lock fails
NOTESCheck for any faults on the steering lock.
Check the battery voltage. It should be between 9 V and 16 V.
Check the validity of parameter PR008 "Vehicle speed".
Check for any faults in the Airbag computer (impact detected) and ABS/ESP
computers.
Reminder: In hands-free mode, the steering column lock is locked as soon as the
ignition is switched off.
With the card in the reader, the steering column lock is locked after the ignition is
switched off as soon as the card is removed from the reader.
The conditions for a drop in + after ignition feed without the steering column locking are:
–the card is present in the card reader,
–over 20 minutes passing with the card in the card reader after the engine has stopped,
–the vehicle speed is not zero,
–power being requested by the steering column lock too frequently.
With regard to vehicles fitted with UCH computer Vdiag 4F or above:
–the Renault card is removed from the card reader when the vehicle is in forced + after ignition feed,
–3 mins have elapsed following a starting failure due to an engaged gear,
–the Renault card is removed from the card reader following a starting failure due to an engaged gear,
–a front door is open following a starting failure due to an engaged gear and the card is not in the reader.
Check that these conditions are not present.
Check the consistency of statuses ET072 Steering column lock and ET073 Steering column lock signal.
In the event of a fault, see the procedure for these statuses in the UCH section.
Check that the steering column lock belongs to the vehicle using status ET248 Steering column lock immobiliser
code.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP46 /UCH_V48_ALP46/UCH_V4C_ALP46/
UCH_V4D_ALP46/UCH_V4F_ALP46/UCH_V50_ALP46