mudspike

One of the sensor, far left on passenger side, went bad several months ago and had replaced.
PDC had been working fine since then.

I recently got PDC failure mssg again and I checked sensor and no front/rear sensor is working.
It is an intermittent failure and in most times it doesn't work.
I am still assuming that it is a bad contact or wiring issue.
I also disconnected and checked PDC module and Power supply and it seemed to O.K.

Scanner is throwing 9E3B, power supply distance sensors line fault.

After a goole search(many are with my case, same code # but no success story),
I took front bumper off to see if there’s any line broken but the lines are visually O.K.
I did it first because the front bumper was taken off for painting 2 month before I got this PDC failure.

Rear suspension strut was also taken off a month ago.
Any chance damaging or touching PDC related line while doing suspension job?

Does anybody has a success story with 9E3B?

mudspike

Anyone?

turboawd

so you checked the pdc module under the spare in the trunk? no evidence of water there? you check to see if there is a fuse for the pdc? sorry, not sure what else to suggest.

mudspike

I did check module internally and externally..
Also swapped 5A PDC fuse with the other one..
All were o.k….

I suspected cable break for the front sensor and plugged new cable set but still got the same code 9E3B.

I am planning on taking rear bumper out and see if there’s cable break there…

Any member with success story with 9E3B is welcome to chime in

teamsmith

I have a similar problem. were you able to diagnose it as a bad wire?

Thanks

Laco19

You could check if supply voltage on PCB is present when the PDC is switched on.

teamsmith

Thanks. Can you tell me what part of the PCB I put my multimeter stick on? To close the circuit with a ground, do I just touch a piece of metal on the car?

thanks

teamsmith

nevermind. I just noticed the red circled area marked supply. what voltage should I see at that part?
thanks

Laco19

If I remember, you have to measure 5V on this point. If voltage is wrong, try to measure with disconnected sensors (disconnect two black connectors).
Switch on PDC before measurement.

teamsmith

problem: my pdc doesn't look like yours. Where should I put the multimeter on mine?