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.
Diagnostic Aids
To locate an intermittent problem, use scan to command each of the four solenoids tied to the ODM circuit ON and OFF independently while monitoring:
- A/C RELAY CKT OPEN SHORT TO GND.
- A/C RELAY CKT SHORT TO VOLTS.
- TCC DUTY CYCLE OPEN SHORT TO GND.
- TCC DUTY CYCLE SHORT TO VOLTS.
- MODULE DRIVER OVERVOLT.
- MODULE DRIVER OVERTEMP.
If IGN 3 fuse is open, A/C RELAY CKT OPEN SHORT TO GND, EVAP VENT CKT OPEN SHORT TO GND and EVAP PURGE CKT OPEN SHORT TO GND parameters on scan tool will read YES.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.