Please Help!! Got a bunch of codes in my car!

[Lasio]

Hi all,

I'm having issues with my car, I have a lot of codes and here in the UK there isn't a dealership I can take the car to.

I have all these codes on my car and got a couple of lights in the dash.

C0045:00 Left rear wheel speed sensor circuit
C0242:00 Powertrain control module indicated traction control
B0021:0D Passenger seat side air bag deployment loop high resistance
B0958:06 Parking assist rear sensor left corner circuit low
voltage/open
B0959:06 Parking assist rear sensor left middle circuit low
voltage/open
B0960:06 Parking assist rear sensor right middle circuit low
voltage/open
B0961:06 Parking assist rear sensor right corner circuit low
voltage/open
B1405:07 Control module voltage reference output 2 circuit high
voltage
B3867:01 Right park lamp control circuit short to battery
B3867:04 Right park lamp control circuit open
B3948:01 Left front turn signal circuit short to battery
B3948:04 Left front turn signal circuit open

A bit of background on the vehicle - I bought it as a project car, completely restored the bodywork on it. Now I'm left with mechanical issues. Car got a brand new battery, and got a bunch of new pads, hubs, etc.

[gtstorey]

Are these stored, pending or historical codes? Have you cleared them to see if they return?

[Lasio]

Originally Posted by gtstorey

Are these stored, pending or historical codes? Have you cleared them to see if they return?

I have cleared and these are the ones left.

[gtstorey]

If these are active, real codes, it looks to me like you missed some connections or damaged wiring while reassembling.

If you can't find a bad connection or damaged wiring, I hope your electrical diagnostic skills are decent. You will need to trouble shoot these using OEM service manual/wiring diagrams.

[Lasio]

Originally Posted by gtstorey

If these are active, real codes, it looks to me like you missed some connections or damaged wiring while reassembling.

If you can't find a bad connection or damaged wiring, I hope your electrical diagnostic skills are decent. You will need to trouble shoot these using OEM service manual/wiring diagrams.

I have no electrical skills but if someone points me in the right direction for each code I am willing to give it a go.

[gtstorey]

Service manual will give diagnostic steps for each code. Available through ac delco sds subscription or alldata.com.

[Lasio]

Originally Posted by Lasio

I have cleared and these are the ones left.

I have managed to fix the airbag code. It was just a connection issue.

I was wondering if someone is able to give me a wiring diagram for the front of the car? Where the wires for the headlights and turn signals are.

[bsn]

Get a factory service manual (electronic version) off Ebay if you can't find one let me know but it might take a few days.

[cawengr]

There is a free service manual with electrical diagram on https://charm.li/

[Lasio]

Originally Posted by cawengr

There is a free service manual with electrical diagram on https://charm.li/

Thank you for providing this. It's a shame I don't understand electrical diagrams.

Managed to get the lights all off the dash, it was all electrical problems. But still have the codes on diagnostics.

[Lasio]

Thank you all for your help..I know what happened though... Previous owner changed the front bumper to different model and now it's full of crazy connections at the front.