2008 RENAULT SCENIC air conditioning

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -154
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -154V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET028
HEATED REAR SCREEN BUTTON
NOTESThere must be no present or stored faults.
Special note:
Information interpretable if the vehicle is configured with Heating or Manual Air
Conditioning (SC008 UCH type and CF019 Type of air conditioning).
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
ET028 Released with press on the button.
ET028 Pressed without press on the button.
Check the condition and connection of the air conditioning control panel connector (bent, broken tabs, etc.).
If the connector is faulty and if 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 condition and connection of the UCH connector PE2 (tabs bent, broken).
If the connector is faulty and if 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 insulation and continuity of the following connection:
●Connection code 15M between components 645 and 139.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the control panel (see 62C, Manual air conditioning).
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_ET028/UCH_V48_ET028/ UCH_V4C_ET028/
UCH_V4D_ET028 /UCH_V4F_ET028/UCH_V50_ET028

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -155
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -155V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET029
AIR CONDITIONING BUTTON
NOTESThere must be no present or stored faults.
Special note:
Information interpretable if the vehicle is configured with Manual Air
Conditioning (SC008 UCH type and CF019 Type of air conditioning).
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Check the condition and connection of the air conditioning control panel connector (bent, broken tabs, etc.).
If the connector is faulty and if 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 condition and connection of the UCH connector PE2 (tabs bent, broken).
If the connector is faulty and if 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 insulation and continuity of the following connection:
●Connection code 38AL between components 645 and 319.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check the control panel (see 62C, Manual air conditioning).
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_ET029/UCH_V48_ET029/ UCH_V4C_ET029/
UCH_V4D_ET029 /UCH_V4F_ET029/UCH_V50_ET029

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of statuses
87B
87B -156V9 MR-372-J84-87B000$473.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ET030
AIR CONDITIONING REQUEST 2
NOTESThere must be no present or stored faults.
The engine must be running.
Special note:
This is the request for air conditioning sent by the UCH to the injection computer. This
request may reach the UCH in two ways:
–In the case of a vehicle fitted with manual air conditioning, by pressing on the air
conditioning button.
–In the case of a vehicle fitted with climate control, by request from the user or the
climate control computer in automatic mode.
ET030 Inactive despite a climate control request.
Air conditioning
Manual

Air conditioning
climate control
Verify that status ET169 Engine is Running. If status ET169 is not running, run fault
finding on the injection.
Check that status ET029 Air conditioning button is PRESSED by pressing the
button. If status ET029 is RELEASED carry out fault finding on this status.
Verify that status ET015 Passenger compartment ventilation is ACTIVE. If status
ET015 is INACTIVE carry out fault finding on this status.
If the fault is still present, contact the Techline.
Carry out fault finding on the climate control computer (see 62C, Manual air
conditioning).
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_ET030/UCH_V48_ET030/ UCH_V4C_ET030/
UCH_V4D_ET030 /UCH_V4F_ET030/UCH_V50_ET030

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Command summary table87B
87B - 246
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Command summary table87B
87B - 246V9 MR-372-J84-87B000$731.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Command summary table
*RCH: Passenger Compartment Heating Resistor
*CPE: Electric central door locking
*SR.: SunroofTool command Diagnostic tool title Vdiag
AC003Immobiliser warning light
V44, V48,
V4C, V4D,
V4F, V50 AC004Central door locking
AC005Central door unlocking
AC006Driver's door unlocking
AC007Rear screen wiper
AC008Front fog lights
AC009Rear fog lights
AC015Air conditioning button indicator light
AC016RCH* 1 relay
AC017RCH* 2 relay
AC018RCH* 3 relay
AC019Heated rear screen indicator light
AC020CPE* button indicator light
AC021Interior lights
AC022Left-hand direction indicator
AC023Right-hand direction indicator
AC024Card reader lighting
AC025One-touch window control/SR.* authorisation
AC026Start button lighting
AC027Footwell lights
AC030Headlight washer relay 1 (only if Vdiag 44 UPC)
AC031Headlight washer relay 2 (only if Vdiag 44 UPC)
AC032Driver's side external aerial testing
AC033Passenger's side external aerial testing
AC034Boot external aerial test
AC036Internal aerial test
AC037Transmitter aerial fault finding
AC076Child safety lock indicator light
MR-372-J84-87B000$731.mif

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 257
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of commands87B
87B - 257V9 MR-372-J84-87B000$774.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
AC015
AIR-CONDITIONING BUTTON INDICATOR LIGHT
Manual air conditioning only
NOTESNo faults should be present or stored.
This command is for testing operation of the air-conditioning indicator light.
Apply the after ignition feed, and the air conditioning control panel should light up.
The command lasts 7 seconds.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
The indicator light does not light up when the command is activated.
Check the condition and connection of the heater control panel connector.
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 for earth on connection NAM of component 316.
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.
With the command running, check for + 12 V feed on connection 38ES of component 316.
If OK, replace the control panel.
Check the condition and connection of connector PE2 on the UCH
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 connection:
●Connection code 38ES between components 645 and 319.
●Connection code NAM between component 319 and earth.
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.