Civic L4-1668cc 1.7L SOHC MFI (2003)
Power Steering Pressure Switch: Testing and Inspection
PSP Switch Signal Circuit Troubleshooting
1. Turn the ignition switch ON (II).
2. Measure voltage between ECM/PCM connector terminals A24 and E16.
Is there less than 1.0 V?
YES - Go to step 3.
NO - Go to step 6.
3. Start the engine.
4. Turn the steering wheel to the full lock position.
5. Measure voltage between ECM/PCM connector terminals A24 and E16.
Is there battery voltage?
YES - The PSP switch signal is OK.
NO - Go to step 13.
6. Turn the ignition switch OFF.
7. Disconnect the PSP switch 2P connector.
8. Turn the ignition switch ON (II).
9. At the harness side, connect the PSP switch 2P connector terminals No.1 and No.2 with a jumper wire.
10. Measure voltage between ECM/PCM connector terminals A24 and E16.
Is there less than 1.0 V?
YES - Replace the PSP switch.
NO - Go to step 11.
11. Turn the ignition switch OFF.
