Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 GMC Canyon 4WD L4-2.9LFACTORY OEM SERVICE PROCEDURE
Engine Control Module (ECM) X2
Harness Routing Views
Engine Harness Routing 1 of 2 (LLV)
1 - Engine Control Module (ECM) X2
2 - Engine Control Module (ECM) X3
3 - Throttle Body Connector
4 - Manifold Absolute Pressure (MAP) Sensor Connector
5 - Evaporative Emission (EVAP) Canister Purge Solenoid Connector
6 - Knock Sensor (KS) Connector
7 - Generator Connector
8 - Crankshaft Position (CKP) Sensor Connector
9 - X105 (NP1)
10 - Fuse Block - Underhood X2
11 - A/C Compressor Clutch Connector
12 - G101
13 - G103
14 - G102
15 - Engine Oil Pressure (EOP) Sensor Connector
16 - Camshaft Position (CMP) Sensor Connector
17 - X100 (NP1)
18 - Camshaft Position (CMP) Actuator Solenoid - Bank 1 Exhaust Connector
19 - Intake Air Temperature (IAT)/Mass Air Flow (MAF) Sensor Connector
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.