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.
Pinpoint Test A: No Communication With The Anti-Lock Brake System (Abs) Module
- A1 CHECK CIRCUIT 532 (OG/YE) FOR AN OPEN
- Key in OFF position.
- Disconnect: ABS Module C135.
- Key in ON position.
- Measure the voltage between ABS module C135-32, circuit 532 (OG/YE), harness side and ground.
- Is the voltage greater than 10 volts?
Yes: GO to A2.
No: VERIFY smart junction box (SJB) fuse 19 (10A) is OK, If OK, REPAIR the circuit. TEST the system for normal operation.
- A2 CHECK CIRCUIT 1203 (BK/LB) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between ABS module C135-38, circuit 1203 (BK/LB), harness side and ground.
- Is the resistance less than 5 ohms?
Yes: REFER to COMMUNICATIONS NETWORK to continue diagnosis of the communication network.
No: REPAIR the circuit. TEST the system for normal operation.
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.