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.
Starter Switch Signal: 3.5RL
Measure voltage by backprobing between PCM 26-pin harness connector terminal No. 26 (Brown/Black wire) and PCM 12-pin harness connector terminal No. 6 (Blue/Red wire) with ignition switch in START position. See Figure . If battery voltage is present, starter switch signal is okay. If battery voltage is not present, inspect No. 14 STARTER SIGNAL (7.5-amp) fuse in underdash fuse/relay box. If fuse is okay, repair open in Blue/Red wire between PCM 12-pin harness connector terminal No. 6 and No. 14 STARTER SIGNAL (7.5 amp) fuse. If fuse is blown, repair short in Blue/Red wire between PCM 12-pin harness connector terminal No. 6, No. 14 STARTER SIGNAL (7.5 amp) fuse in under-dash fuse/relay box and PGM-FI main relay terminal No. 2. Replace fuse.
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.
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