87B-42
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
With automatic headlighting:DF087
PRESENT
OR
STORED
SIDE LIGHTS RELAY CONTROL CIRCUIT
CC.1 : Short circuit to + 12 volts
CC.0 : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
The ignition is switched on and the side lights are activated.
OR
Running AC055 Side lights
Note:
This fault only appears on vehicles fitted with automatic headlighting.
Check for the rain/light sensor (component code 1415) then use the diagnostic tool
to check:
–Check that LC044 "Rain/light sensor" displays "Present". If not, carry out
CF035 "Rain/light sensor".
–Check that LC095 "Automatic headlight function", displays "With". If not, carry
out CF193 "Automatic headlight function".
–Check that LC096 "Automatic wiper function" displays "With". If not, carry out
CF194 "Automatic headlight function".
Check that fuses F14 (20 A), F15 (5 A), F25 (5 A), F39 (10 A), F40 (5 A), F42 (10 A) and F43 (10 A) are sound
and correctly fitted in the passenger compartment fuse and relay box (component code 1016).
Replace the fuse(s) if necessary.
Check the presence and condition of the side light relays (component code 289) (20A) and 1034 (20A).
Replace the side light relay (component code 289) if necessary.
Check the condition and connection of the light concerned (bent, oxidised, broken tabs).
Check the condition and connection of the 40-track connectors PE1 and PE2 of the UCH (component code 645)
(tabs broken, bent or oxidised).
Check the condition and connection of the horn and lights switch connector (component code 209) (tabs bent,
oxidised, broken).
Check for the + 12 V (when requesting the side lights) on connection LPD of component 184 and on
connection LPG of component 185. Check for the earth on connection MAR of component 184 and on
connection MAS of component 185.
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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF087
87B-45
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
With automatic headlighting:DF088
PRESENT
OR
STORED
DIPPED BEAM HEADLIGHTS RELAY CONTROL CIRCUIT
CC.1 : Short circuit to + 12 volts
CC.0 : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
The ignition is switched on and the side lights are activated.
OR
Running AC054 Dipped headlights
Note:
This fault only appears on vehicles fitted with automatic headlighting.
Check for the rain/light sensor (component code 1415) then:
–Check that the vehicle has a rain/light sensor (component code 1415).
–Check that LC044 "Rain/light sensor" displays "Present". If not, carry out
CF035 "Rain/light sensor".
–Check that LC096 "Automatic wiper function" displays "With". If not, carry out
CF194 "Automatic wiper function".
–Check that LC095 "Automatic headlight function", displays "With". If not, carry
out CF193 "Automatic headlight function".
Check that fuses F13 (30A), F15 (5A), F25 (5 A), F34 (15 A) and F35 (15 A) are sound and correctly fitted in the
passenger compartment fuse and relay box (component code 1016).
Replace the fuse if necessary.
Check the presence and condition of the dipped headlights relay (component code 281) (20A).
Replace the dipped headlights relay (component code 281) if necessary.
Check the correct positioning and condition of the bulb concerned.
Replace the light if necessary.
Check the condition and connection of the light concerned (bent, oxidised, broken tabs).
Check the condition and connection of the UCH 40-track connector PE2 (component code 645) (tabs bent,
oxidised or broken).
Check the condition and connection of the horn and lights switch connector (component code 209) (tabs bent,
oxidised, broken).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF088
87B-50
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
With automatic headlighting:DF098
PRESENT
OR
STORED
MAIN BEAM HEADLIGHT RELAY CONTROL CIRCUIT
CC.1 : Short circuit to + 12 volts
CC.0 : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
The ignition is switched on and the main beam headlights are activated.
OR
Running AC062 Main beam headlights
Note:
This fault only appears on vehicles fitted with automatic daytime running lights. Check
for the rain/light sensor (component code 1415) then:
–Check that the vehicle has a rain/light sensor (component code 1415).
–Check that LC044 "Rain/light sensor" displays "Present". If not, carry out -
CF035 "Rain/light sensor".
–Check that LC096 "Automatic wiper function" displays "With". If not, carry out
CF194 "Automatic wiper function".
–Check that LC095 "Automatic headlight function", displays "With". If not, carry
out CF193 "Automatic headlight function".
Check the presence and condition of fuses F15 (5 A), F25 (15 A), F32 (10 A) and F33 (10 A) on the passenger
compartment fuse and relay box (component code 1016).
Replace the fuse if necessary.
Check the presence and condition of the main beam headlights relay (component code 1574) (20A).
Replace the main beam headlights relay (component code 1574) if necessary.
Check the correct positioning and condition of the bulb concerned.
Replace the light if necessary.
Check the condition and connection of the light concerned (bent, oxidised, broken tabs).
Check the condition and connection of the UCH PE2 connectors (component code 645) (tabs bent, oxidised or
broken).
Check the condition and connection of the horn and lights switch connector (component code 209) (tabs bent,
oxidised, broken).
Check for + 12 V (when there is a main beam headlights request) on connection RPD of components 226 and
227. Check for an earth on connection MAR of component 226 and connection MAS on component 227.
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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF098
87B-53
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
With automatic headlighting:DF108
PRESENT
OR
STORED
FRONT FOG LIGHTS CONTROL CIRCUIT
CC.1 : Short circuit to + 12 volts
CC.0 : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault reappears after:
Switching on the ignition and the front fog lights.
OR
Running AC008 Front fog lights
Note:
This fault only appears on vehicles fitted with automatic daytime running lights. Check
for the rain/light sensor (component code 1415) then:
Check that the vehicle has a rain/light sensor (component code 1415):
–Check that LC044 "Rain/light sensor" displays "Present". If not, carry out -
CF035 "Rain/light sensor".
–Check that LC096 "Automatic wiper function" displays "With". If not, carry out
CF194 "Automatic wiper function".
–Check that LC095 "Automatic headlight function", displays "With". If not, carry
out CF193 "Automatic headlight function".
–Check that LC015 Front fog lights is With. Otherwise run CF021 Front fog
lights.
Check the presence and condition of fuses F15 (5 A), F20 (15 A), F25 (5 A) on the passenger compartment fuse
and relay box (component code 1016).
Replace the fuse if necessary.
Check the presence and condition of the front foglights relay (component code 231) (20A).
Replace the front fog lights relay (component code 231) if necessary.
Check the correct positioning and condition of the bulb concerned. Replace the light if necessary.
Check the condition and connection of the light concerned (bent, oxidised, broken tabs).
If the connector is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the condition and connection of the UCH PE2 connector (component code 645) (tabs bent, oxidised or
broken).
Check the condition and connection of the horn and lights switch connector (component code 209) (tabs bent,
oxidised, broken).
Check for + 12 V (when front fog lights are requested) on connection 8B of components 176 and 177.
Check for earth on connection MAR of component 176 and connection MAS on component 177.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF108
87B-55
MR-413-X44-87B000$432.mif
V5
87B
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
With automatic headlighting:DF109
PRESENT
OR
STORED
REAR FOG LIGHTS CONTROL CIRCUIT
CC.1: Short circuit to + 12 volts
CC.0: Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
If the fault reappears as present after:
The ignition is switched on and the rear fog lights are activated.
OR
Running AC009 Rear fog lights.
Note:
This fault only appears on vehicles fitted with automatic daytime running lights. Check
the presence of the rain/light sensor (component code 1415), then:
Check that the vehicle is configured with a rain/light sensor (component code 1415):
–Check that LC044 Rain/light sensor displays Present. If not, perform CF035
Rain/light sensor.
–Check that LC096 Automatic wiper function displays With. If not, carry out
CF194 "Automatic wiper function".
–Check that LC095 Automatic headlight function displays With. If not, carry out
CF193 "Automatic headlight function".
Check the presence and condition of fuses F15 (5 A), F20 (15 A), F25 (5 A), F39 (10 A) in the passenger
compartment fuse and relay box (component code 1016).
Replace the fuse if necessary.
Check the presence and condition of the rear fog lights relay (component code 230) (20A).
Replace the rear fog lights relay (component code 230) if necessary.
Check the correct positioning and condition of the bulb concerned. Replace the light if necessary.
Check the condition and connection of the light concerned (bent, oxidised, broken tabs).
connection of the UCH PE2 connector (component code 645) (tabs bent, oxidised, broken).
Check the condition and connection of the control stalk connector (component code 209) (tabs bent, oxidised,
broken).
Check for + 12 V (when there is a rear fog lights request) on connection 9P of components 172 and 173.
Check for earth on connection MF of component 172 and connection MYH on component 173.
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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF109
MR-413-X44-87B000$432.mif
UCH
Vdiag No.: 44
87B-61
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF135
DF136
PRESENT
OR
STOREDRAIN DETECTOR
LIGHT SENSOR
1.DEF: Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
If the fault reappears as present after:
Switching on the ignition, activating automatic headlight lighting by moving the control
stalk twice in quick succession as follows: control stalk (component code 209) to
position zero ΑΕ control stalk (component code 209) to side lights position.
Status ET114 "Wiper request from rain sensor" should be "Low speed" or "High
speed" when the water runs over the position of the rain/light sensor on the
windscreen or status ET115 "Request for lights to be switched on from light
sensor" should be "Present" when an opaque cover is placed over the rain/light
sensor.
Note:
If there is an open circuit on connection BPT, there will be a malfunction on the
electric window winders, on the rain/light sensor, on the interior lights and the boot
lighting.
Check that the vehicle has a rain/light sensor (component code 1415).
Check that the vehicle is configured with a rain/light sensor (component code 1415).
Check that LC044 Rain/light sensor is Present. If not, perform CF035 Rain/light sensor.
Check that LC096 Automatic wiper function displays With. If not, carry out CF194 "Automatic wiper
function".
Check that LC095 Automatic headlight function displays With. If not, carry out CF193 "Automatic headlight
function".
Check the condition and position of supply fuses F2 (15 A), F8 (15 A), F19 (5 A), F27 (5 A) according to the
equipment, F29 (15 A) of the rain/light sensor (component code 1415) on the passenger compartment fuse and
relay box (component code 1016).
Replace the fuse if necessary.
Check the condition and connection of the 3-track connector of the rain/light sensor (component 1415) (tabs
bent, broken or oxidised).
Check the condition and connection of the PE2 connector of the UCH, (component code 645) (tabs bent,
oxidised, broken).
Check for + 12 V on connection BPT of component 1415.
Check for earth on connection MAM of component 1415.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF135 / UCH_V44_DF136
87B-62
MR-413-X44-87B000$432.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF135
DF136
CONTINUED
Check the continuity and insulation of the following connections:
●Connection code BPT between components 1415 and 645.
●Connection code 14S between components 1415 and 645.
●Connection code MAM between component 1415 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 connections are correct, replace the rain/light sensor (component code 1415). (See MR 411 Mechanical
85A, Wiping - Washing, Rain and light sensor: Removal - Refitting).
If the problem 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.
87B-77
MR-413-X44-87B000$480.mif
V5
UCH
Vdiag No.: 44PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Conformity check87B
LIGHTING FUNCTION
SUB-FUNCTION: LIGHTING CONTROL
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.
FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
Lighting controlET081:Lighting switch
positionSIDE
DIPPED
MAIN BEAM
HEADLIGHTS
HAZARD LIGHTSIn the event of a fault, refer to the
interpretation for status ET081.
ET085:Hazard warning
lights buttonDEPRESSED
RELEASEDIn the event of a fault, refer to the
interpretation for status ET085.
Lighting requestET115:Request to switch on
lights by light sensorPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET115.
ET111:Front fog lights
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET111.
ET082:Rear fog lights
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation for status ET082.
ET083:Left-hand indicator
requestPRESENT
ABSENTIn the event of a fault, refer to the
interpretation of statuses
ET083 and ET084.
ET084:Right-hand indicator
requestPRESENT
ABSENT
TailgateET463:Door(s) or tailgateOPEN
CLOSEDIn the event of a fault, consult the
interpretation of status ET463.
Vehicle speedPR008:Vehicle speed0 mphIn the event of a fault, run fault
finding on the ABS system (see
38C, Anti-lock braking system).