P042B Code resolved - Service Restraint System

FoundNemo · 09-12-2021, 02:59 PM

Had a random and sudden P042B code and a service restraint system pop up today after a hard 2nd gear pull through 4th. No other codes, no MIL but airbag light on. Scan showed that there was a lost communication with Body Control Module "A" which apparently could be one of like 100 modules on the car.

A bit of google searching, main harness checks and figured it out promptly. Turns out one of the connectors under the passenger seat (by the front of the left lower rail) had unclipped completely. Easiest fix ever. It was very obviously unplugged.

Cheers to anyone else who experiences this, apparently happens on the c7 vettes too.

Flowtie1 · 09-12-2021, 03:03 PM

Thanks for the heads up !

FoundNemo · 09-12-2021, 03:58 PM

Quote:

Originally Posted by Flowtie1

Thanks for the heads up !

Anytime! Always happy to share easy fixes. First place I went was the engine bay to check the harness by the headers but that harness is fully wrapped in DEI shielding and far away from the CSP headers, so had serious doubts it was that. Easy fixes are the best.

Scottyz · 09-12-2021, 05:00 PM

Glad it was that easy.

FoundNemo · 09-13-2021, 05:12 AM

Quote:

Originally Posted by Scottyz

Glad it was that easy.

Thx sir!

serper3 · 09-13-2021, 02:11 PM

Quote:

Originally Posted by FoundNemo

Had a random and sudden P042B code and a service restraint system pop up today after a hard 2nd gear pull through 4th. No other codes, no MIL but airbag light on. Scan showed that there was a lost communication with Body Control Module "A" which apparently could be one of like 100 modules on the car.

A bit of google searching, main harness checks and figured it out promptly. Turns out one of the connectors under the passenger seat (by the front of the left lower rail) had unclipped completely. Easiest fix ever. It was very obviously unplugged.

Cheers to anyone else who experiences this, apparently happens on the c7 vettes too.

Oh man! This would happen to my 2008 c6 corvette.. I would get an airbag light on the dash. the connector under the seat would wiggle loose. I finally had to zip tie it tight.

glad it was an easy fix though.

pauly1119 · 09-13-2021, 02:34 PM

Nothing like an easy fix!

09-12-2021, 02:59 PM	#1
FoundNemo Drives: 2019 ZL1 Join Date: Oct 2019 Location: GA Posts: 573	P042B Code resolved - Service Restraint System Had a random and sudden P042B code and a service restraint system pop up today after a hard 2nd gear pull through 4th. No other codes, no MIL but airbag light on. Scan showed that there was a lost communication with Body Control Module "A" which apparently could be one of like 100 modules on the car. A bit of google searching, main harness checks and figured it out promptly. Turns out one of the connectors under the passenger seat (by the front of the left lower rail) had unclipped completely. Easiest fix ever. It was very obviously unplugged. Cheers to anyone else who experiences this, apparently happens on the c7 vettes too. Last edited by FoundNemo; 09-12-2021 at 03:59 PM.

09-12-2021, 03:03 PM	#2
Flowtie1 Drives: 2017 ZL1 Join Date: Apr 2020 Location: South florida Posts: 332	Thanks for the heads up ! __________________ 2017 ZL1 M6 Silver Ice Metallic

09-12-2021, 05:00 PM	#4
Scottyz 2019 ZL1 1LE MY GOON Drives: 1980 Z28 Big Red. Join Date: Dec 2018 Location: Stoney Creek Posts: 2,061	Glad it was that easy.

09-13-2021, 02:34 PM	#7
pauly1119 Drives: 2018 ZLE Join Date: Feb 2018 Location: Palm City Fl Posts: 1,360	Nothing like an easy fix!

User Name		Remember Me?
Password