GMC Terrain, Equinox, and SRX Forum banner

1 - 2 of 2 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter · #1 ·
2012 Terrain check engine light comes on starting with 2 codes p0030 n p0036 went to fix them and more codes show up p0097, p0141, p0443 n p2199. Fixed the first 2 O2 heater sensors n replaced Mass Air/IAT2 sensor but when you clear them after 15 minutes or a restart they all come back....Should I replace the ECM next? I can't afford a $100 diagnostic charge on top of the dealer wanting $630 if that's the problem.
 

·
Registered
Joined
·
570 Posts
Sounds like theres a problem with the wiring harness or that a connection is loose have you checked the connection between the computer and wiring harness and make sure the little plastic lever on them is all the way on with the red locking tabs? Give that stuff a tug and inspect all the wires leading there.
 
1 - 2 of 2 Posts
Top