80D-41
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 10 Lights not switching on at night
NOTESOnly check this customer complaint after performing a complete check with the
diagnostic tool.
The engine must be running in order for the automatic lighting function to operate and
the system must be equipped with a rain/light sensor.
Check, as a priority, the operation of status ET115 "Request to switch on the lights
via the light sensor" in the UCH. Check that the following faults are not present:
–DF011 "Rain/light sensor circuit",
–DF135 "Rain sensor",
–DF136 "Light sensor".
Deal with the above faults if they are present.
Note:
The sensor requests the lights to be switched on when there is poor light intensity (at night, in a tunnel, etc.).
Check whether the vehicle has a rain/light sensor. If the vehicle does not have a rain/light sensor, explain to the
customer that this is normal, and that the vehicle does not have this feature.
Activate the automatic lighting function by switching
the side lights on and off twice in succession:
a beep will sound to confirm this.
Did a beep sound?
YES
NORefer to the interpretation of status ET081
"Lighting stalk position".
AFTER REPAIRCarry out a complete check with the diagnostic tool.
UCH_V44_ALP10
80D-42
MR-413-X44-80D000$900_eng.mif
V1
LIGHTING
Fault finding - Fault Finding Chart80D
ALP 10
CONTINUED
If the vehicle is fitted with a rain/light sensor, check that the vehicle is configured with a rain/light sensor.
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 lighting function", displays "With". If not, carry out CF193 "Automatic
headlight function".
Check that status ET142 Engine operating
phase is RUNNING.
Is status ET142 RUNNING?
YES
Check that the windscreen is clean and in good condition (no cracks, bonded correctly, etc.).
Check that the sensor is present and correctly positioned.
Check that the windscreen is the correct type.
NORun fault finding on the multiplex network and
the injection computer. (see 88B,
Multiplexing and 13B, Diesel injection or
17B, Petrol injection)
AFTER REPAIRCarry out a complete check with the diagnostic tool.
