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
Power Steering (P/S) Oil Pressure 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.
- Connect PGM-FI test harness between ECU and ECU connectors. Measure voltage between terminals B5 (positive) and D22 (negative). If voltage is less than one volt, go to step 3). If battery voltage exists, disconnect 2-wire connector on P/S oil pressure switch located on power steering pump. Connect jumper between Green and Green/White wire terminals.
- If battery voltage is present, replace P/S oil pressure switch. If less than one volt is present, repair open in Green wire (between ECU terminal B5 and P/S pressure switch) or in Green/White wire leading to ECU terminal D22.
- Start engine. and turn steering wheel slowly. Measure voltage between PGM-FI test harness terminals B5 (positive) and D22 (negative) while wheel is being turned. If battery voltage exists, P/S oil pressure signal is okay.
- If battery voltage is not present, disconnect PGM-FI test harness connector "B" to main wire harness only. DO NOT disconnect from ECU. Turn ignition on. If 12 volts are not present, try a known good ECU. If problem goes away, replace ECU.
- If battery voltage exists, reconnect connector "B" to main harness. Unplug connector from P/S oil pressure switch. Check Green wire for battery voltage. If battery voltage is present, replace P/S oil pressure switch. If battery voltage is not present, repair short in Green wire between ECU terminal B5 and P/S oil pressure switch.
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.