87B-31
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF013
CONTINUED
Checking the monolever (component code 209):
With command AC022 Left-hand indicator running, check for + 12 V on the following connection:
●Connection code 64T between components 209 and 645.
If the connection is defective and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, W iring: Precautions for repair), repair the wiring, otherwise replace it.
If there is no + 12 V, check the insulation, continuity and the absence of interference resistance on the
following connections:
●Connection code 64T between components 209 and 645.
●Connection code BPA2 between components 1016 and 209.
●Connection code BPA3 between components 1016 and 209.
●Connection code MAN or MAM between component 209 and earth MAN or MAM (depending on the driving
layout, right- or left-hand drive).
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the feeds, earths and connections of the monolever (component code 209) are correct, replace the monolever
(component code 209). (See MR 411 Mechanical systems 84A, Controls - Signals, Lighting and signals
switch: Removal - Refitting)
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.
87B-35
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF041
PRESENT
OR
STOREDHEATED REAR SCREEN INDICATOR LIGHT CIRCUIT
CC.1 : Short circuit to + 12 volts
NOTESApply this fault only to versions without heating or with manual climate control.
Conditions for applying the fault finding procedure to stored faults:
The fault appears after:
The ignition is switched of f and back on again and the rear screen de-icer is
requested.
OR
Running command AC019 Heated rear screen indicator light.
Check that fuses F29 (15 A) and F42 (10 A) are sound and correctly fitted in the passenger compartment fuse
and relay box (component code 1016) and/or heating.
Replace the fuse(s) if necessary.
Check the air conditioning control panel black 9-track connector, (component code 319) (bent, oxidised or
broken tabs).
Check that the earth on connection NAM of the manual air conditioning control panel black 9-track connector is
in perfect condition.
Check for + 12 V on connection LPD (by running command AC019 Heated rear screen indicator light) of the
manual air conditioning control panel black 9-track connector.
Check for + 12 V accessories feed on connection SP2 of the manual air conditioning control panel black 9-track
connector.
Check that the rear screen de-icing indicator comes on when activating command AC019 Heated rear screen
indicator.
Check the PE1 40-track connector of the UCH, component code 645 (tabs bent, oxidised, broken).
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF041
87B-37
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF042
PRESENT
OR
STOREDAIR CONDITIONING WARNING LIGHT CIRCUIT
CC.1 : Short circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the ignition is switched on and following an air
conditioning activation request with all the lights switched off.
Check that the type of air conditioning of the vehicle (equipment level) corresponds with the UCH configuration:
Check that LC013 Air conditioning type corresponds with the vehicle equipment level. Otherwise carry out
CF019 Air conditioning type.
Check that fuses F29 (15A) and F42 (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 air conditioning control panel black 9-track connector, (component code 319) (bent, oxidised or
broken tabs).
Check that the earth on connection NAM of the manual air conditioning control panel black 9-track connector is
in perfect condition.
Check for + 12 V accessories feed on connections LPD and SP2 of the manual air conditioning control panel
black 9-track connector.
Check the PE1 and PE2 40-track connectors of the UCH, (component code 645) (tabs bent, oxidised, broken).
Check the insulation, continuity and absence of interference resistance of the following connections:
●Connection code 15A between components 319 and 645.
●Connection code 38ES between components 319 and 645.
●Connection code 38LP between components 319 and 645.
●Connection codes LPD and SP2 between components 319 and 1016.
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, replace the air conditioning control panel (component code 319) (see MR 411
Mechanical systems 62B, Climate control, Control panel: Removal - Refitting).
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_DF042
87B-38
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
*RF: radio frequencyDF054
PRESENT
OR
STORED
COMPUTER
The radiofrequency receiver inside the UCH computer does not work
1.DEF : Internal electronic fault
NOTESConditions for applying the fault finding procedure to stored faults:
–The fault is declared present after the ignition has been switched on.
If the fault is stored, switch off the ignition and check the F8 (15A) fuse of the UCH supply (component
code 645) on the passenger compartment fuse and relay box (component code 1016).
–Replace the fuse if necessary, clear the fault and switch on the ignition again.
–Request locking and then unlocking, then start the engine.
Check for + after ignition feed on connections AP43, BP15, APT, BP6, BP13, BP19, SP2, SP15 of
component 645.
Check for + 12 V accessories feed on connections SP2 and SP15 of component 645.
Check for earth on connections MAN and NAM 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.
Check that status ET045 “RF* signal received” is “Yes” by pressing the locking button on the key, if when
pressing the status is “No” check the battery and the conformity of the key.
If the fault does not reappear, switch the lighting, wipers, vehicle locking and climate control request controls on
and off several times, then read the faults again.
If the fault is still present. Do not operate on the computer, contact Techline.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
UCH_V44_DF054
87B-41
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
*CPE: Electric central door locking.DF082
PRESENT
OR
STORED
DOOR LOCKING BUTTON CIRCUIT
CC.0 : Short circuit to earth
NOTESConditions for applying fault finding procedures to stored faults:
The fault appears after:
Pressing the central door locking button.
OR
Running AC020 CPE* button indicator light.
Check that the vehicle is correctly configured:
Check that LC003 Deadlocking is With. Otherwise carry out CF009 Deadlocking.
Check that LC040 Automatic locking when driving is With. Otherwise carry out CF108 Automatic locking
when driving.
Check that LC093 Central door locking is With. Otherwise perform CF192 Central door locking.
Check that the door locking button indicator light comes on when running command AC020 CPE button
indicator light.
Check that fuses F42 (10 A) and F46 (15 A) on component 1016 are sound and correctly fitted.
Check the condition and connection of the door lock switch/hazard warning lights switch connector (component
code 1391) (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 for + 12 V on the following connections:
●Connection code 20M between components 1391 and 645.
●Connection code 20AW between components 1391 and 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.
Check the insulation, continuity and the absence of interference resistance on the connections between:
●Connection code 20M between components 1391 and 645.
●Connection code 20AW between components 1391 and 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.
If the fault is still present, replace the central door locking/hazard warning lights switch (component code 1391).
(See MR 411 Mechanical systems 84A, Controls - Signals, Hazard warning lights and central door locking:
Removal - Refitting).
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_DF082
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-43
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF087
CONTINUED 1
Side lights check:
Check the insulation, continuity and the absence of interference resistance on the following connections:
Right-hand front side light:
●Connection code LPD between components 184 and 1016.
●Connection code MAR between component 184 and earth MAR.
Left-hand front side light:
●Connection code LPG between components 185 and 1016.
●Connection code MAS between component 185 and earth MAS.
Rear right side light:
●Connection code LPD between components 172 and 1016.
●Connection code MF between component 172 and earth MF.
Rear left side light:
●Connection code LPG between components 173 and 1016.
Connection code MG between component 173 and earth MG.
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.
Check for + 12 V (when side lights are requested) on connection L of component 289.
Check for + 12 V (when side lights are requested) on connection 78P of components 289.
Check for + 12 V on connection BP11 of component 289.
Side light relay check:
Check the insulation, continuity and the absence of interference resistance on the following connections:
●Connection code L between components 1016 and 289.
●Connection code BP11 between components 289 and 1016 and 597.
●Connection code 78H between components 645 and 1034.
●Connection code 78P between components 289 and 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.
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults.
Deal with any other faults.
87B-44
MR-413-X44-87B000$384.mif
V5
PASSENGER COMPARTMENT CONNECTION UNIT
Fault finding - Interpretation of faults
UCH
Vdiag No.: 44
87B
DF087
CONTINUED 2
Checking the monolever (component code 209):
Check the insulation, continuity and the absence of interference resistance on the following connections:
Check between the monolever (component code 209) and the UCH:
●Connection code 78B between components 645 and 209.
Check between the monolever (component code 209) and the passenger compartment fuse and relay box
(component code 1016):
●Connection code BPA2 between components 1016 and 209.
●Connection code BPA3 between components 1016 and 209.
●Connection code BPA4 between components 1016 and 209.
●Connection code MAN or MAM between component 209 and earth MAN or MAM (depending on the driving
layout, right- or left-hand drive).
Check for + 12 V on connections BPA2 and BPA3 of component 209. Check for earth on connection MAM
(for right-hand drive vehicles) or MAN (for left-hand drive vehicles) of component 209.
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 feeds, earth and connections are correct, replace the monolever (component code 209). (See MR 411
Mechanical systems 84A, Controls - Signals, Lighting and signals switch:
Removal - Refitting)
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.