Page 297 of 391
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -297
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -297V9 MR-372-J84-87B000$860.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ANTITHEFT AND STARTING RECORDED FAULTS
NO + ACCESSORIES FEED ALP39
FORCED AFTER-IGNITION FEED FAILS ALP40
THE VEHICLE DOES NOT START AND THE AFTER IGNITION FEED
FAILS, CARD IN THE CARD READERALP41
THE VEHICLE DOES NOT START, THE AFTER IGNITION FEED
FAILS IN HANDS-FREE MODE BUT WORKS WITH THE CARD IN THE
CARD READERALP42
THE VEHICLE FAILS TO START AND GOES INTO AFTER IGNITION
FEEDALP43
THE STARTER BRIEFLY RUNS BUT THE VEHICLE FAILS TO START
AND GOES INTO AFTER IGNITION FEEDALP44
IMPOSSIBLE TO SHUT OFF ENGINE ALP45
STEERING COLUMN LOCK DOES NOT LOCK ALP46
STEERING COLUMN LOCK DOES NOT UNLOCK ALP47
STARTING ERRATIC ALP48
Page 298 of 391
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -298
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -298V9 MR-372-J84-87B000$860.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
DOOR MIRRORS
NO FOLDING-IN OR FOLDING-OUT OF ONE OR MORE DOOR
MIRRORSALP49
CANNOT ADJUST ONE OF THE TWO DOOR MIRRORS ALP50
SUPPLY
+ AFTER IGNITION FEED REMAINS BLOCKED ALP51
Page 299 of 391
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -299
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Customer complaints
87B
87B -299V9 MR-372-J84-87B000$860.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
TYRE PRESSURE MONITOR
"ADJUST TYRE PRESSURE" MESSAGE APPEARS (WHEEL
CONCERNED IS HIGHLIGHTED ON THE DISPLAY)ALP52
"ADJUST TYRE PRESSURE" MESSAGE APPEARS (2 WHEELS
BECOME HIGHLIGHTED ON THE DISPLAY)ALP53
"TYRE SENSOR FAULT" MESSAGE APPEARS (WHEEL WARNING
LIGHT DISAPPEARS)ALP54
"TYRE SENSOR FAULT" MESSAGE APPEARS (4 WHEEL WARNING
LIGHTS DISAPPEAR)ALP55
"PUNCTURE: CHANGE WHEEL" MESSAGE APPEARS (THE WHEEL
IS HIGHLIGHTED ON THE DISPLAY)ALP56
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PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 300
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 300V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart
ALP1 No dialogue with the computer
NOTESCheck the condition and connection of the battery connections.
Check the condition of the power fuses on the battery's positive terminal.
Check the battery voltage.
Repair if necessary.
Use Wiring Diagrams Technical Note for MEGANE II or SCENIC II.
Is there contact or another feed level?
NO
Perform locking/unlocking.
Did locking/
unlocking work?
NO
YESRefer to ALP 1 (see 88B, Multiplexing).
Has the fault disappeared?
YES NO
YESRefer to the section
Interpretation of faults, Multiplex
network out of service (see 88B
Multiplexing).
Contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP1/UCH_V48_ALP1/ UCH_V4C_ALP1/
UCH_V4D_ALP1 /UCH_V4F_ALP1/UCH_V50_ALP1
MR-372-J84-87B000$903.mif
Page 301 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 301
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 301V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP1
CONTINUED
Check the condition and connection of connector PP1 of 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 for earth on connection MAM on the PP3 connector of component 645.
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 + 12 V on the following connections of the PP1 connector:
●Connection code BPS1 of component 645.
●Connection code BP77 of component 645.
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.
Are the power supplies correct?
YES NO
Repair the faulty connections and fuses up to the
battery, checking the passenger compartment relay
and fuse boxes and the power supply fuse board.
Contact the Techline.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
Page 302 of 391
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 302
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 302V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP2 No rear fog lights
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check the bulbs.
Are the bulbs in good condition?
YES
Check status ET082 Rear fog lights request by
actuating the control stalk.
Is status ET082 present?
YES
Perform command AC009 Rear fog lights.
Does the fog light come on?
YES
Check the UCH connectors.
If the fault is still present, contact the Techline.
NOReplace the bulbs.
NOApply interpretation of ET082 Rear fog
light request.
NOApply interpretation of command AC009
Rear fog light.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP2/UCH_V48_ALP2/ UCH_V4C_ALP2/
UCH_V4D_ALP2 /UCH_V4F_ALP2/UCH_V50_ALP2
Page 303 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 303
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 303V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP3 NO RIGHT-HAND DIRECTION INDICATOR
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply and earth on the bulb
connectors (see interpretation of DF012 Right-hand
direction indicator circuit).
Is there a supply?
NO
Check status ET084 Right-hand direction
indicator request by actuating the control stalk.
Is status ET084 present?
YES
Perform command AC023 Right-hand direction
indicator.
Does the right-hand direction indicator come on?
YES
Check the UCH connectors.
If the fault is still present, contact the Techline.
NOReplace the bulbs.
YESVerify that there is no corrosion on the
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.
NOApply interpretation of status ET084
Right-hand indicator request.
NOApply interpretation of command AC023
Right-hand direction indicator.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP3/UCH_V48_ALP3/ UCH_V4C_ALP3/
UCH_V4D_ALP3 /UCH_V4F_ALP3/UCH_V50_ALP3
Page 304 of 391

PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 304
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Fault Finding Chart87B
87B - 304V9 MR-372-J84-87B000$903.mif
UCH
Vdiag No.: 44, 48,
4C, 4D, 4F, 50
ALP4 No left-hand direction indicator
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
Check the bulbs.
Are the bulbs in good condition?
YES
Check the + 12 V supply and earth on the headlight
connectors (see interpretation of DF013 Left-hand
direction indicator circuit).
Is there a supply?
NO
Check status ET083 Left-hand direction indicator
request by moving the control stalk.
Is status ET083 present?
YES
Perform command AC022 Left-hand direction
indicator.
Does the left-hand direction indicator come on?
YES
Check the UCH connectors.
If the fault is still present, contact the Techline.
NOReplace the bulbs.
YESVerify that there is no corrosion on the
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.
NOApply interpretation of status ET083 Left-
hand direction indicator request.
NOApply interpretation of command AC022
Left-hand direction indicator.
AFTER REPAIRCarry out a complete check using the diagnostic tool.
UCH_V44_ALP4/UCH_V48_ALP4/ UCH_V4C_ALP4/
UCH_V4D_ALP4 /UCH_V4F_ALP4/UCH_V50_ALP4