Headlight knackered (MIL + AFS disabled)

[Legojon]

So yeah, throw a dart in the board what to start with!

02233 - Left Headlight Power Output Stage (J667)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 6
Fault Frequency: 108
Reset counter: 81
Mileage: 75955 km
Time Indication: 0
Date: 2013.07.30
Time: 20:23:10

Freeze Frame:
Voltage: 13.77 V
Speed: 0.0 km/h
ABS 1

01042 - Control Module; Not Coded
000 - - - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 40
Time Indication: 0

Freeze Frame:
Invalid
Invalid
Invalid

02656 - Power Output Stage for Left Headlight (J667); Not Coded
000 - - - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 40
Time Indication: 0

Freeze Frame:
Invalid
Invalid
Invalid

02657 - Power Output Stage for Right Headlight (J668); Not Coded
000 - - - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 40
Time Indication: 0

Freeze Frame:
Invalid
Invalid
Invalid

01539 - Headlights Not Adjusted
005 - No or Incorrect Basic Setting / Adaptation - MIL ON
Freeze Frame:
Fault Status: 11100101
Fault Priority: 3
Fault Frequency: 1
Reset counter: 40
Time Indication: 0

Freeze Frame:
Invalid
Invalid
Invalid

01534 - Control Circuit for Left Headlight Range Adjusting Motor (V48)
010 - Open or Short to Plus - Intermittent
Freeze Frame:
Fault Status: 00101010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 80
Mileage: 75956 km
Time Indication: 0
Date: 2013.07.30
Time: 20:37:34

Freeze Frame:
Voltage: 14.06 V
Speed: 15.6 km/h
ABS 1


02627 - Dynamic Cornering Light Motor; Left (V318)
010 - Open or Short to Plus - MIL ON
Freeze Frame:
Fault Status: 11101010
Fault Priority: 3
Fault Frequency: 1
Reset counter: 40
Mileage: 75985 km
Time Indication: 0
Date: 2013.07.30
Time: 12:12:25

Freeze Frame:
Voltage: 14.06 V
Speed: 0.0 km/h
ABS 1

02629 - Sensor for Swivel Module Position; Left
007 - Short to Ground - MIL ON
Freeze Frame:
Fault Status: 11100111
Fault Priority: 3
Fault Frequency: 2
Reset counter: 41
Mileage: 75989 km
Time Indication: 0
Date: 2013.07.30
Time: 17:21:13

Freeze Frame:
Voltage: 11.93 V
Speed: 0.0 km/h
ABS 1

 

[Rusty2k]

I'd start with the headlight unit and the wiring between the light unit and the range controller.

According to this article from Ross-Tech you can expect additional errors if there is no communication between the range controller and one or both of the light units.

http://wiki.ross-tech.com/wiki/index.php/VW_Golf_(1K)_Headlight_Aim_Control_(Xenon_with_AFS)

 

[Legojon]

Cheers for the advice. Is the range controller this one under each of the lights? Or the main one at the side of the glovebox?

 

[Rusty2k]

No that's the ballast.

The range controller is this control unit.

 

[Hawkers]

Here is where your J667 is from the self study programme - https://drive.google.com/file/d/1Q3Ecz1zA5XeIZKrGvj7Rj2KBCMZjHEWS/view

Seems to also link to the V48 and V318 error

 

[Legojon]

So I've gone into vcds and had great fun (you can remote control the headlights!). So the right hand light I can make go up, down, left and right! But the left hand light shows communication errors. From the above does that suggest the left hand power module may have blown up? Apparently according to the HUD, AFS has been disabled.

 

[Hawkers]

Did it say what it was trying to communicate to?

 

[Legojon]

I'm a bit fuzzy cause I ended up going into loads of screens. But it showed 4 boxes marked "load" it was blank for both left hand boxes and right showed something like 46 54. If I tried to send anything to the left headlight it just came up with a message saying it wasn't coded.

 

[Hawkers]

AFS CONTROL UNIT J745
To access the diagnosis of the AFS control
unit J745, it is necessary to select the address
word 55 whether using the Guided fault finding,
Guided functions or Self diagnosis option. The
most important operations are shown below:
SELF DIAGNOSIS
DIAGNOSABLE ELECTRICAL
COMPONENTS
Using the option, “Electrical components
for automatic headlight reach adjustment”
the following components governed by the AFS
control unit J745 can be checked individually:
– Level sensor G76/G78.
– Headlights reach adjustment motors
V48/V49.
– Dynamic curve lighting servomotors
V318/V319.
– Orientation module position sensors
G474/G475.
– Power module J667/J668.

 

[Legojon]

Well, this cost me a leg n an arm to fix. Can't get a good picture of it, but the power unit literally had the soldered legs corroded together from the water ingress. They are >£300 a piece. Then had to have a brand new headlight as the seals were gone on the old one and water would just leak back in again. There goes another £570. But all seems to be well again and AFS / autolevelling confirmed as working. Cheers for the advice and diagrams.