PUG 508 problem with xenon lights

[dariobrb]

Hi guys,

I have this problem for a while, that i tried fixing but with no luck, so i came here to ask for your help.
Car is Peugeot 508 2011, 2.0 163HP limousine.
Problem that i am encountering is that xenon lights stays in lowest position. When i start the car i get the message (Automatic headlamp height adjustment fault) followed with blinking green icon(dipped beam) and beep sound. Headlights does not perform their "dance" when i start the car, they just stays in lowest position.
When i scanned car with Diagbox i got 2 faults for headlamps:

B1133 Value of the front body sensor: too high
B1111 Headlamp calibration fault(calibration not carried out after configuration or faulty calibration)

Tried erasing codes without success, tried to perform calibration per instructions but with no success because there is fault present which is obstructing calibration.
I than did test for horizontal and vertical movement, both test are performed flawlessly.
After that i checked front and rear sensors witch both looked fine, also i checked that little plastic arm that connects sensor with swaybar and that also looked fine, but i changed front sensor (with brand new one from PSA)
but with no luck of resolving problem. Also i checked live data and found something odd about front and back height calibration voltage(see picture).

I am stuck here, i dont know what should i do or check to fix this problem, so i am hoping for help from some of you guys.

Thanks in advance!


P.S Also tried to reset bsi, without success.

[GiveMeABreak]

This will happen if there is a problem with the data sent from the front or rear height sensors. So although your actuator tests using Diagbox will work fine, all that tells you is the headlamp motors are working properly. But when on the road, the directional headlamps will be disabled, only allowing static lighting to work. This is normal and a safety feature. You need to investigate the situation further to find out if it is the sensor or the wiring.

Be aware if you replace a sensor, as you need to undertake programming / initialisation or there will be faults.

[dariobrb]

Hi Marc,
i checked every possible wire that i could see and everything seems ok, only thing that i cant access is headlight corrector calculator.(number 1 on picture)

Do you maybe know how i can access this thingy, as i am assuming that the calculator is faulty, or somehow some wire that goes in it is broken or something..

[GiveMeABreak]

With fault B1111 you will get the following backup modes.

• The automatic height adjustment system is placed in the refuge position
• The automatic azimuth adjustment system is placed in the refuge position
• The directional lighting function is deactivated

For B1133:

Fault Code:	B1133
Description of Fault:	Value from the front body height sensor: Too high. Voltage higher than 4 V during downloading of the calibration of the unit.
Conditions for Fault to clear:	Disappearance of the malfunction
Downgrade Modes whilst Fault is active:	Directional headlamp not operational Dipped headlamps in emergency position (the lowest possible) Switching on of the warning lamp and/or warning message: Displaying of an error message for the directional headlamps or the automatic headlamp adjustment Flashing of the dipped beam indicator Flashing of the headlamp height adjustment warning lamp
Symptoms:	Directional headlamp not operational The dipped headlamps are constantly straight ahead The light beam of the dipped headlamps is too low
Suspect Areas:	Body height sensor Electrical harness

So if not electrical the diagnosis points to the rear right height sensor.

The Headlamp ECU is buried somewhere in the dash, likely to be near the BSI:

508 HEadlamp ECU Locatgion.png

The Electrical Connection to the ECU are:

508 HEadlamp ECU.png

Channel number	Allocation of channels of connector
1	+APC
2	Not connected
3	Earth
4	Rear body height sensor signal
5	Channel not connected
6	Channel not connected
7	Lin BUS - Right-hand headlamp
8	Channel not connected
9	CAN Low intersystems
10	Positive body height sensor supply
11	Channel not connected
12	Body height sensor earth
13	Front body height sensor signal
14	Channel not connected
15	Channel not connected
16	Lin BUS - Left-hand headlamp
17	Not connected
18	CAN High intersystems