2008 RENAULT SCENIC ESP

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 183
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 183V9 MR-372-J84-87B000$516.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET066
CARD BUTTON PRESS RECEIVED
NOTESNo faults should be present or stored.
The status is declared as YES when one of the buttons is pressed.
ET066 NO despite pressing one of the buttons on the card.
Try pressing a button on a different card (card for the vehicle or another vehicle).
If the status changes to YES, check the condition of the card battery in question. Replace the battery if necessary.
If the status remains NO, check that there is no radio frequency interference in the area surrounding the vehicle.
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_ET066/UCH_V48_ET066/ UCH_V4C_ET066/
UCH_V4D_ET066 /UCH_V4F_ET066/UCH_V50_ET066

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 184
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 184V9 MR-372-J84-87B000$516.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET067
CARD BUTTON PRESS RECOGNISED
NOTESNo faults should be present or stored.
The status is declared as YES when one of the buttons is pressed.
ET067 NO, despite pressing one of the buttons on the card.
Resynchronise the cards by activating forced after ignition with the card in the card reader.
If the fault is still present and ET066 Card button press received is YES, program the cards.
If ET066 Card button press received is NO, check the condition of the card battery. Replace the battery if
necessary.
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_ET067/UCH_V48_ET067/ UCH_V4C_ET067/
UCH_V4D_ET067 /UCH_V4F_ET067/UCH_V50_ET067

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 226
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses87B
87B - 226V9 MR-372-J84-87B000$559.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET110
UCH REQUEST TO INJECTION COMPUTER OR PROTECTION
AND SWITCHING UNIT
NOTESNo faults should be present or stored.
This status gives information concerning the type of request made by the UCH to these computers.
"ENGINE STOP": when an engine stop is requested.
"INACTIVE": without action on the vehicle.
"+ AFTER IGNITION FEED": on pressing the start button for more than 5 seconds.
"START": when starting is requested.
If the status does not correspond to the current user request, carry out a test of the multiplex network.
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_ET110/UCH_V48_ET110/UCH_V4C_ET110/
UCH_V4D_ET110/UCH_V4F_ET110/UCH_V50_ET110

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -243
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of parameters
87B
87B -243V9 MR-372-J84-87B000$688.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
PR003
PR004
PR005
PR006FRONT LEFT-HAND WHEEL TYRE PRESSURE
FRONT RIGHT-HAND WHEEL TYRE PRESSURE
REAR RIGHT-HAND WHEEL TYRE PRESSURE
REAR LEFT-HAND WHEEL TYRE PRESSURE
NOTESThere must be no faults present.
Carry out this fault finding procedure after detecting a discrepancy in the parameter
displays.
When communication is established, the default value of the parameters is displayed (0 bar). By creating
a leak or using a road test, force each valve to transmit to discover the actual pressure levels measured
by the sensors during the fault finding procedure.
In all cases, compare whether the pressures displayed on the diagnostic tool correctly match the readings on the
pressure gauge (to within 0.2 bar).
If the readings do not correspond, you may encounter two possible scenarios:
1st case: The parameters still display 0 bar.
This means that the wheel valve codes do not correspond to the wheel set programmed into the UCH. (When the
UCH receives the valve codes, it will not recognise them because they do not correspond to the wheel set codes
already programmed, which are the only ones it will recognise). To rectify this:
Start the programming procedure using command SC002 Program the 4 valve codes (see Configurations and
programming).
2nd case: Parameters PR003 to PR006 display incorrect values (other than 0 bar).
If the pressures differ, there is a fault on the valve. Replace the faulty valve. Follow programming procedure: SC002
(see Configurations and programming).
After programming, repeat the fault finding procedure from the beginning.
AFTER REPAIRRepeat the check from the start.
UCH_V44_PR003/UCH_V48_PR003/UCH_V4C_PR003/UCH_V4D_PR003/UCH_V4F_PR003/UCH_V50_PR003/UCH_V44_PR004/
UCH_V48_PR004/UCH_V4C_PR004/UCH_V4D_PR004/UCH_V4F_PR004/UCH_V50_PR004/UCH_V44_PR005/UCH_V48_PR005/
UCH_V4C_PR005/UCH_V4D_PR005/UCH_V4F_PR005/UCH_V50_PR005/UCH_V44_PR006/UCH_V48_PR006/UCH_V4C_PR006/
UCH_V4D_PR006/UCH_V4F_PR006/UCH_V50_PR006

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 339
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 339V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 3
Disconnect the black connector from the sunroof motor.
Using a multimeter, check for + 12 V between connections BP93 and MAM of component 304.
Is the feed correct?
YESNO
Replace the sunroof motor (see 87D Electric windows - sunroof: Removal - Refitting).
Using the wiring diagram which corresponds to the vehicle, check the conformity of union R301.
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-sunroof,
Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity of the following connections:
●Connection code MAM.
●Connection code BP93 between components 304 and R301.
If the continuity is faulty, check the intermediate connector R339.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric sunroof:
Initialisation).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 340
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 340V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 4
Is the control correct?
YES
Disconnect the sunroof motor connector (see MR Mechanical, 87D Electric windows - sunroof, Sunroof motor:
Removal - Refitting).
Check for + 12 V between connections BP93 and MAM of component 304.
Is the feed correct?
YESNO
Using the wiring diagram which corresponds to the vehicle, check the conformity of union R301.
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-
sunroof, Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity of the following connections:
●Connection code MAM.
●Connection code BP93 between components 304 and R301.
If the continuity is faulty, check the intermediate connector R339.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise
replace the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric
sunroof: Initialisation).
If the fault is still present, contact the Techline.
NOReplace the control (see MR Mechanical
systems, 87D Electric windows -
sunroof, Sunroof switch: Removal -
Refitting).
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 341
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 341V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 5
Check using status ET087 Sunroof/one touch window authorisation that authorisation for the UCH to open the
sunroof is ACTIVE.
Disconnect the sunroof motor connector (see MR Mechanical, 87D Electric windows - sunroof, Sunroof motor:
Removal - Refitting).
Check for + 12 V between connections BP93 and 21K of component 304.
Is the feed correct?
NOYES
Disconnect the sunroof motor connector (see MR Mechanical systems, 87D Electric windows-
sunroof, Sunroof motor: Removal - Refitting) and disconnect union R301.
Check the continuity on the following connection:
●Connection code 21K between components 304 and 645.
If the continuity is faulty, use the wiring diagram corresponding to the vehicle to check
intermediate connectors R339 and R301.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace
the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric
sunroof: Initialisation).
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 342
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 342V9 MR-372-J84-87B000$946.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP24
CONTINUED 6
Check the continuity and insulation of the following connections:
●Connection code 52J.
●Connection code 52H.
●Connection code 52G between components 304 and R301.
If the continuity is faulty, use the wiring diagram corresponding to the vehicle to check the conformity of
intermediate connector R339.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
After repairing the condition of the wiring, initialise the sunroof (see MR fault finding 87D, Electric sunroof:
Initialisation).
If the continuity and insulation of the following connections are correct: Replace the sunroof motor (see 87D
Electric windows - sunroof: Removal - Refitting).
Control positionConnections 52D and
52HConnections 52D and
52JConnections 52D and
52G
Closed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max. Infinite
Tilt position Infinite100 ΩΩ Ω Ω
Max. Infinite
Sliding position 1Infinite100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
Sliding position 2Infinite Infinite100 ΩΩ Ω Ω
Max.
Sliding position 3 100 ΩΩ Ω Ω
Max. Infinite100 ΩΩ Ω Ω
Max.
Pressed 100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.100 ΩΩ Ω Ω
Max.
AFTER REPAIRCarry out a complete check using the diagnostic tool.