punkieys17
Member
- Joined
- Jun 26, 2007
- Messages
- 19
- Reaction score
- 2
Attention any PTS experts - I've got a weird fault on my 2002 facelift e430 estate.
Rear PTS failed with no rear display. After replacing a few sensors the display is showing just two bars nearest to centre and warning beep. Used a scanner to discover only the inner 2 units are working. (My scanner shows from the sensor distance as 255 down to 0 for each one - the two outer (left and right) are just stuck at 255). By swapping replacements through the inner 2 working locations I have checked and have a set of working sensors (had collected a few in anticipation of faulty sensors). So I know the sensors are in working condition - yet they will not work on the car in the rear right outer and the rear left outer positions.
OK so check the wiring - full continuity from the control module box connection to the three connections at the back of the senors (power, ground and signal). I checked all 4 sensor wiring from the control box. So maybe its the box....well I had bought a used one from fleabay....While of course it might also be faulty its also reporting just the 2 outers are not working.
Anyone out there with an inkling what my next step should be.....I'm grinding to a halt.
Its a bit of a pain as the estate requires the removal of the rear bumper and its sensible to get this done now I've tackled the modest rust on the inner panels.
Rear PTS failed with no rear display. After replacing a few sensors the display is showing just two bars nearest to centre and warning beep. Used a scanner to discover only the inner 2 units are working. (My scanner shows from the sensor distance as 255 down to 0 for each one - the two outer (left and right) are just stuck at 255). By swapping replacements through the inner 2 working locations I have checked and have a set of working sensors (had collected a few in anticipation of faulty sensors). So I know the sensors are in working condition - yet they will not work on the car in the rear right outer and the rear left outer positions.
OK so check the wiring - full continuity from the control module box connection to the three connections at the back of the senors (power, ground and signal). I checked all 4 sensor wiring from the control box. So maybe its the box....well I had bought a used one from fleabay....While of course it might also be faulty its also reporting just the 2 outers are not working.
Anyone out there with an inkling what my next step should be.....I'm grinding to a halt.
Its a bit of a pain as the estate requires the removal of the rear bumper and its sensible to get this done now I've tackled the modest rust on the inner panels.
