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.
1992 Acura Integra GS-RFACTORY OEM SERVICE PROCEDURE
Automatic Transmission Shift Position Signal
WARNING: This page is about a different car, the 1992 Acura Legend. However, it is still accessible from the selected car via links, so may be relevant.
- While watching shift indicator, shift transmission gear lever to each position. If shift indicator lights up correctly for all positions, turn ignition off. Connect PGM-FI test harness between ECU and ECU connectors. Unplug connector "B" from main harness only. DO NOT disconnect from ECU. Turn ignition on. Measure voltage between ECU terminals B7 (positive) and A26. If voltage is not about 10 volts, substitute a known good ECU and recheck voltage.
- If voltage is about 10 volts, reconnect connector "B" to main wiring harness. If voltage is not as specified, substitute a known good ECU and retest. If voltage is as specified, go to next step.
- Turn ignition off. Reconnect wire harness to ECU. Place transmission in Neutral. Start engine. Measure voltage between terminals B7 (positive) and A26 (negative) with transmission selector in both Park and Neutral positions. If voltage is more than one volt, repair open in Light Green wire between ECU terminal B7 and gauge assembly. If voltage is less than one volt, go to next step.
- Set transmission selector to Drive position. Measure voltage between terminals B7 (positive) and A26 (negative). If voltage is not about 10 volts, repair short in Light Green wire between ECU terminal B7 and combination meter. If voltage is about 10 volts, repair short in Light Green wire between ECU terminal B7 and gauge assembly. If voltage is as specified, shift position signal is okay.
Factory Service Tools
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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.