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
1997 Isuzu Oasis SSECTION Starter Switch Signal
NOTE:
This signal informs PCM when engine is cranking. During this test transmission must be in Neutral or Park position (A/T) or clutch pedal must be depressed (M/T).
- Place transmission in Neutral or Park position (A/T) or depress clutch pedal (M/T). Turn ignition switch to START position. Measure voltage between PCM connector terminal A9 and terminal C6. See Figure. If battery voltage does not exist, go to next step. If battery voltage exists, starter switch signal is okay.
- Inspect STARTER SIGNAL fuse located in underdash fuse/relay box. If fuse is okay, repair open in wire between STARTER SIGNAL fuse and PCM connector terminal C6. See Figure. If fuse is not okay, repair short in wire between PCM connector terminal C6 and STARTER SIGNAL fuse or between PCM connector terminal C6 and PGM-FI main relay. Replace STARTER SIGNAL fuse. See WIRING DIAGRAMS article.
RENDER: 1.0x
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.