Advice please. Reverse lights are not working so I changed the sensor, still not working. I tested the sensor before fitting and it works fine, ie, connected the wiring and pressed the plunger, I have also tested the old sensor and that is working fine. Any advice as this is driving me mad, thanks.
Technical Stilo JTD 06 Plate
- Thread starter Ted Bear
- Start date
Currently reading:
Technical Stilo JTD 06 Plate
I dunno where the reverse gear sensor lives but I suspect it's somewhere where it'll get covered in dirt grease and oil, so check that the connector to the switch is clean, connected and "live" (actually has current). It reads like yours does.
If there's current to the switch and the switch is good then the current is just not reaching the lamps...
You could start at the lamps and work backwards until you find the current.
( The lamps are not in the bootlid are they? If so, the hatch wiring loom inevitably snaps a few wires over the years) but if the bulbs are good and the wiring to them is good, the most likely place where the current to both of them can go AWOL at the same time is at the fusebox (under the "right knee" cover) so I would look there first.
Additionally... Stilo is CANBUS and has a Body Control Module behind the fusebox. You'll need someone with a wiring diagram.. but if the reverse lamp signal goes via the BCM then the fault could be inside the BCM (circuit board).
BCM is not just a toss it away and fit a new one job unfortunately... it contains the chips for the immobilisor so you would need to repair it.
If it's not repairable, you could swap it for a "new" one, as long as you also swapped over the chips... or (since you'll need professional help probably and it's going not be a DIY fix) you could instead leave it alone and spend the money on an auto-electrician to wire the reversing lights old style/outside the BCM.
But fuse-box first.
Ralf S.
If there's current to the switch and the switch is good then the current is just not reaching the lamps...
You could start at the lamps and work backwards until you find the current.
( The lamps are not in the bootlid are they? If so, the hatch wiring loom inevitably snaps a few wires over the years) but if the bulbs are good and the wiring to them is good, the most likely place where the current to both of them can go AWOL at the same time is at the fusebox (under the "right knee" cover) so I would look there first.
Additionally... Stilo is CANBUS and has a Body Control Module behind the fusebox. You'll need someone with a wiring diagram.. but if the reverse lamp signal goes via the BCM then the fault could be inside the BCM (circuit board).
BCM is not just a toss it away and fit a new one job unfortunately... it contains the chips for the immobilisor so you would need to repair it.
If it's not repairable, you could swap it for a "new" one, as long as you also swapped over the chips... or (since you'll need professional help probably and it's going not be a DIY fix) you could instead leave it alone and spend the money on an auto-electrician to wire the reversing lights old style/outside the BCM.
But fuse-box first.
Ralf S.
Last edited:
Thanks for the reply. I went to have another look at it yesterday and to my surprise the lights are now working. The switch itself was less than £5 from Euro Parts so not a huge drama to fit a new one to start with.
Remove the near side wheel and the switch is visible at the bottom of the gearbox. You need a short 19mm ring spanner to remove it.
Remove the near side wheel and the switch is visible at the bottom of the gearbox. You need a short 19mm ring spanner to remove it.
