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.
Power & Ground Connections
| Circuit | PCM Pin | BOB Pin | Wire Color | ||||||
|---|---|---|---|---|---|---|---|---|---|
| GND | 2R | 49 | BLK | ||||||
| GND | 3A | 20 | BLK | ||||||
| GND | 3G | 40 | BLK | ||||||
| KAPWR | 3J | 1 | (1) BLU/RED | ||||||
| MT/AT (2) | 2RT | 43 | (3) BLK | ||||||
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1) Turn ignition off. Install BOB, leaving PCM disconnected. Turn ignition on. Measure voltage at BOB pin in question. Compare voltage to specification in PGC CIRCUIT PIN IDENTIFICATION table. If voltage is to specification, go to next step. If voltage is not to specification, repair wire in question.
2) Measure resistance between ground and BOB pin in question. If any measurement is greater than 5 ohms, repair associated wire to ground. If resistance is not greater than 5 ohms, return to PINPOINT TEST VREF if sent here from there, and temporarily substitute known good PCM. If not sent here from PINPOINT TEST VREF, return to diagnostic routine.
NO RELATED
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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.