Volvo came in for the tow electrics to be wired up. We may not be the cheapest but our work […]READ MORE -
This came into our workshop this week with no sidelights and the customer having already had it into his usual garage which couldn’t locate the fault. . All the obvious checks were made first like bulbs,fuses and switch. ￼￼ Through diagnostic live data we could see the switch sending command for sidelights so that eliminated the switch and the wiring to control module.
￼ The plug onto the module was just as bad, but unavailable as a spare part. Luckily second hand parts were sourced locally and fitted. The customer was extremely happy at the savings against new parts and a quick and proper diagnosis.
Into our busy workshop this week from another garage was this Audi with no wipers and indicators. The other garage had tried another convenience module but the fault remained.
Being experienced at VAG systems and with both faults being on the steering column we could trace the fault from there
Using accurate wiring diagrams, the signals from the steering column go from the steering column control module to the power distribution module then that module tells the devices to work.
The signals were getting to the power module but it wasn’t sending them out.
A new module was sourced from the agent and plugged in no coding is necessary with this part
Pico scope is the most reliable way to test wiring and can signals.
A quick serial scan showed front sensor faults. We performed a live data check by going for a run in the vehicle and found no communication with the front sensors.
once the car was lifted and the sensors examined the trouble was obvious. The common issue with the RS model is that because the car is alot wider than the regular car and they haven’t extended the wiring looms to the sensors, the wiring is stretched excessively and can become open circuit. Repair looms were sourced from the dealer and repaired successfully. ￼