80D-24
MR-413-X44-80D000$900_eng.mif
V1
80D
LIGHTING
Fault finding - Fault Finding Chart
If the vehicle lighting is controlled by the UCH (with rain/light sensor):
If the switch is not a one-touch control:
If the vehicle lighting is not controlled by the UCH (no rain/light sensor):
ALP 2 No rear fog light
NOTESOnly refer to the customer complaints after performing a complete check using the
diagnostic tool.
If the horn and lights switch is a one-touch control:
Check the operation of status ET082 Rear fog lights request and command AC009
Rear fog light in the UCH. If there is a malfunction on status ET082 "Rear fog lights
request" and command AC009 "Rear fog lights", refer to the interpretation of status
ET082 "Rear fog lights request", of command AC009 "Rear fog lights" and of fault
DF109 "Rear fog lights control circuit".
Check the condition of the bulb and cleanliness of its
contacts.
Are the bulb and its contacts in good condition?
YES
Replace the light concerned.
Check that fuses F13 (10 A) and F39 (10 A) are sound and correctly fitted in the passenger compartment fuse
and relay box.
Replace the fuse if necessary.
Check the condition and connection of the light connector concerned (bent, oxidised, broken tabs).
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 condition and connection of the horn and lights switch connector (tabs broken, bent, oxidised).
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 for + 12 V (when there is a rear fog lights request) on connection 9P of components 172 and 173. Check
for an earth on connection MF of component 172 and connection MG on component 173.
NOClean the contacts and replace any bulb in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP2
MR-413-X44-80D000$900_eng.mif
80D-36
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
If the vehicle lighting is not controlled by the UCH (no rain/light sensor):
If the vehicle lighting is controlled by the UCH (with rain/light sensor):
ALP 8 No front fog lights
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
If the fog light control on the horn and lights switch is a one-touch control, check that
the front fog lights are "WITH" by reading configuration LC015 "Front fog lights".
Otherwise use command CF021 "Front fog lights".
Check the operation of status ET111 Front fog lights request and command AC008
Front fog light in the UCH. If there is a malfunction on status ET111 "Front fog
lights request" and command AC008 "Front fog lights", refer to the interpretation
of status ET111 "Front fog lights request" and command AC008 "Front fog
lights".
Carry out a multiplex network test. If the multiplex
network contains faults (see 88B, Multiplexing).
Check the condition of the bulbs and the cleanliness
of their contacts.
Are the bulbs and their contacts in good
condition?
YES
Replace the light concerned.
Check that fuse F13 (10 A) is sound and fitted in the passenger compartment fuse and relay box.
Replace the fuse if necessary.
Check the condition and connection of the light connector concerned (bent, oxidised, broken tabs).
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.
NOClean the contacts and replace any bulbs in
poor condition.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP8
