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.
VER-1B System Operation Test
Turn ignition off. Disconnect the CAB 60-pin connector. See Figure . Put DRB-II in voltmeter mode. Using DRB-II, check voltage on CAB connector terminal No. 13 (White/Tan wire) while depressing brake pedal. If reading is less than 9 volts, repair White/Tan wire as necessary. Perform VER-1A . If reading is more than 9 volts, replace CAB. Perform VER-1A .
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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.