Westmoreland Rover
Member
- Posts
- 11
- Location
- UK
I have a 1997 (P registration) P38 4.6 V8 GEMS. Recently the red SRS lamp on the dash is continually on with the 'Airbag Fault' message in the digital display.
Nanocom is ‘unable to communicate with ECU’ but functions on everything else on the car. I have tried it on all three Airbag options on the Nanocom menu.
So far I have done the following:
I understand that on these earlier cars any correction in the circuit does not generate an automatic reset which has to be done through the diagnostic reader (i.e. Nanocom) but cannot do this as outlined above.
The only other thing which does not seem right, but has been like this since I have owned the car (5 years) as I have never had it to bits, is the red plug connecting the passenger airbag has blue to white on both terminals, rather than blue to blue and white to white. They cannot be swapped over due to the red plug only going together one way.
Any advice would be appreciated.
Nanocom is ‘unable to communicate with ECU’ but functions on everything else on the car. I have tried it on all three Airbag options on the Nanocom menu.
So far I have done the following:
- Checked continuity between OBDII and DCU and all found to be okay. This isn’t surprising as the OBDII and ALL terminals within it were recently renewed with new due to corrosion issues.
- Checked continuity through rotary coupler on steering wheel to red plug under dash and all okay
- No continuity done on any other yellow sheathed loom due to specific advice on forums not to.
- Checked both bulbs in cluster and both are okay
- Airbag DCU under rear of centre console replaced with a tested second-hand working one of the same type
- Battery was iffy when problem first started appearing but since changed with the one off my daily driver which is known to be good.
I understand that on these earlier cars any correction in the circuit does not generate an automatic reset which has to be done through the diagnostic reader (i.e. Nanocom) but cannot do this as outlined above.
The only other thing which does not seem right, but has been like this since I have owned the car (5 years) as I have never had it to bits, is the red plug connecting the passenger airbag has blue to white on both terminals, rather than blue to blue and white to white. They cannot be swapped over due to the red plug only going together one way.
Any advice would be appreciated.
