amateurmechanic1980
New member
Hi people!
I know this threadtopic has been posted a lot of times, but I can't find any posts that is totally simular to my issue. Ok, here it goes...
I got errorcode P057100, scanned with both pro scanner and my own VAG-scanner.
This is my symptoms when errorcode is active:
1. Glowplug lamp in dashboard is flashing constant, it even flashes as soon as I turn on the ignition.
2. Brakelights work as normal .
3. The symbol in my dashboard saying that I should step on the brakes before switching gears is working as normal.
4. Cruisecontrol is not working.
This is my symptoms when errorcode is erased and not active:
1. Brakelights are active all the time, even when I don't have my foot on the pedal.
2. The symbol in my dashboard saying that I should step on the brakes before switching gears is NOT working.
3. Cruisecontrol is not working.
This is what I have done to try to eliminate the fault:
1. Replaced the wire going from brakelightswitch to ECU and connection under dashboard, because I measured 1.1 kOhm in the wire. After replacing I measured O.L. in the same wire.
2. Replaced brakelightswitch (but since brakelights acts normal when error is active I think the switch is good)
3. Disconnected each brakelight-module, one at a time while erasing error in between every module. Still I got errorcode.
4. Replaced speedsensor and camshaftsensor, without success.
The funny part is that when I remove fuse nr. 22, that is the fuse to the brakelightswitch, the brakelights still works. Is there a short circuit in the fusebox possibly? I have checked all fuses, both in engineroom and inside. I am in the dark here.
I know this threadtopic has been posted a lot of times, but I can't find any posts that is totally simular to my issue. Ok, here it goes...
I got errorcode P057100, scanned with both pro scanner and my own VAG-scanner.
This is my symptoms when errorcode is active:
1. Glowplug lamp in dashboard is flashing constant, it even flashes as soon as I turn on the ignition.
2. Brakelights work as normal .
3. The symbol in my dashboard saying that I should step on the brakes before switching gears is working as normal.
4. Cruisecontrol is not working.
This is my symptoms when errorcode is erased and not active:
1. Brakelights are active all the time, even when I don't have my foot on the pedal.
2. The symbol in my dashboard saying that I should step on the brakes before switching gears is NOT working.
3. Cruisecontrol is not working.
This is what I have done to try to eliminate the fault:
1. Replaced the wire going from brakelightswitch to ECU and connection under dashboard, because I measured 1.1 kOhm in the wire. After replacing I measured O.L. in the same wire.
2. Replaced brakelightswitch (but since brakelights acts normal when error is active I think the switch is good)
3. Disconnected each brakelight-module, one at a time while erasing error in between every module. Still I got errorcode.
4. Replaced speedsensor and camshaftsensor, without success.
The funny part is that when I remove fuse nr. 22, that is the fuse to the brakelightswitch, the brakelights still works. Is there a short circuit in the fusebox possibly? I have checked all fuses, both in engineroom and inside. I am in the dark here.
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