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.
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HOMESERVICE MANUALSHONDA1998CIVIC DX, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTINGIDLE CONTROL SYSTEMSTARTER SWITCH SIGNAL
1998 Honda Civic DX, 2D Coupe, Automatic
Starter Switch Signal
1998 Honda Civic DX, 2D Coupe, AutomaticSECTION 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 terminals A26 and B20 (Accord, CR-V, Oasis & Odyssey) or A9 and C6 (Civic & Prelude). See Figure . If battery voltage exists, starter switch signal is okay. If battery voltage does not exist, go to next step.
- Inspect STARTER SIGNAL fuse located in under-dash fuse/relay box. See STARTER SWITCH FUSE LOCATION . If fuse is okay, repair open in wire between STARTER SIGNAL fuse and PCM connector terminal B20 (Accord, CR-V, Oasis & Odyssey) or C6 (Civic & Prelude). See Figure . If fuse is not okay, repair short in wire between PCM connector terminal B20 (Accord, CR-V, Oasis & Odyssey) or A9 and C6 (Civic & Prelude) and STARTER SIGNAL fuse or between PCM connector terminal B20 (Accord, CR-V, Oasis & Odyssey) or A9 and C6 (Civic & Prelude). and PGM-FI main relay. Replace STARTER SIGNAL fuse. See WIRING DIAGRAMS article.
STARTER SWITCH FUSE LOCATIONS
| Model | Fuse No. | Location |
|---|---|---|
| Accord | No. 13 | Drivers under-dash fuse/relay box |
| Civic & CR-V | No. 31 | Drivers under-dash fuse/relay box |
| Oasis & Odyssey | No. 9 | Drivers under-dash fuse/relay box |
| Prelude | No. 2 | Drivers under-dash fuse/relay box |
RENDER: 1.0x
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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.