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RMS Auto-electrics/Diagnostics

89 members • $34/month

3 contributions to RMS Auto-electrics/Diagnostics
Blown engine control module how do we know?? RMS Test guide.
hi everyone, just sitting down with a cup of tea on my sunday off watching the video https://www.youtube.com/watch?v=FVWBGFjwL2M what amazing testing steps in this video for me 1. using crocodile clips to hold on to the wires to test which i never thought of doing and always going back and forth between wiring diagram and connector plug 2. could of easily been caught out with the ecu fault amazing 3. you need different platforms like hgs, alldata, autodata for help with wiring diagrams 4. Do i get the bulb load testers i joined 1 day before the video was posted lol.
Inputs/Outputs
Where would you go from here? Qashqai washer pump not working. I’ve verified there’s no feed to pin 14, but I am getting an input from the washer switch at pin 16. HGS doesn’t show where the output/feed to pin 14 is supposed to come from, it just shows all the wires going back to the BCM. So I’m a bit stuck on where to trace it back to. Is this where OEM diagrams come into play or am I missing something
Inputs/Outputs
0 likes • 9d
Looks like there's something called a pump control unit connected to the same wires for the washer pump as well. Not sure if this helps at all
0 likes • 7d
@Alan Smith it does and doesn't depending on if the info is available Ive had some modules where the info is available and some where it is not. But you can request the info from alldata which is good and they go and get the data for you
citroen c4 picasso c156d
hi everyone i have a citroen c4 picasso with a c156d, passed over to my workshop from another. we had a fault code for the right rear abs sensor which was a corroded wire which we have repaired and the ABS lights are gone. This is the 2 pin style on the motors and not the older 4 pin ones. Reg : AF67 YGV VIN: VF73ABHZTHJ882074 Fault code: C156D- permanent not clearning i have an xtool d8w only at our garage, when attempting to do electric activation or the parking brake nothing happens, when doing replacement of motor and caliper using the diag nothing happens. Vehicle no longer has parking brake.
0 likes • 12d
@Roger Boyle yeah my xtool d8w has function for maintenance mode but didn't do anything. Next door have a snap on which they keep up to date. Going to ask to see if any luck.
0 likes • 9d
Update for everyone. Removed both motors from the callipers driver side rear caliper would move when I tightened and loosened up the t50. Passenger side would just turn and the caliper would not move. Replaced the nearside rear caliper with the motor. Carried out initialisation with the kingbolen k10. The xtool d8w could not do it and the fault has been rectified.
1-3 of 3
Shah Islam
1
5 points to level up
@shahjhan-islam-7355
full time mechanic, part time diag tech

Active 4d ago
Joined Sep 5, 2026
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