Reddok
Veteran Member
- Joined
- Feb 18, 2010
- Location
- Hamilton, Ontario
- TDI
- '00 Jetta TDI 01M, '02 Jeep Liberty Renegade ALH TDI swap
I'm working on my wiring for my conversion right now and was thinking about the glow plug and check engine light. I had read that the older ALH TDIs had dedicated pins on the ECU for CE and GP lights. I thought I'd check to see if any of the unused pins on my 2002 ALH ECU might be used in the same manner.
I used the output test in VAGCOM and probed the pins on the 121 pin connector and discovered the glow plug light appears to be exposed on pin 40! It is actually wired to the white connector at the firewall (Blue with green stripe wire). I can't verify this 100% as my wiring harness is not in my vehicle yet though.
Unfortunately, I had no luck finding a CE light output. Anyone else have any ideas? There are 3 other pins labeled as unused on the mitchell diagram I have (pin 24, 28 and 47). Any ideas on what these pins? Maybe an RPM signal in there somewhere? I can't check that until I have this running though.
I used the output test in VAGCOM and probed the pins on the 121 pin connector and discovered the glow plug light appears to be exposed on pin 40! It is actually wired to the white connector at the firewall (Blue with green stripe wire). I can't verify this 100% as my wiring harness is not in my vehicle yet though.
Unfortunately, I had no luck finding a CE light output. Anyone else have any ideas? There are 3 other pins labeled as unused on the mitchell diagram I have (pin 24, 28 and 47). Any ideas on what these pins? Maybe an RPM signal in there somewhere? I can't check that until I have this running though.