PSP Switch Signal Circuit Troubleshooting

1.	Start the engine, and let it idle.

2.	Align the steering wheel straight ahead.

3.	Check the PSP SWITCH in the DATA LIST with the Honda PGM Tester or the HDS. Is OFF indicated? YES - Go to 4. NO - Go to 12.

4.	Turn the steering wheel to the full lock position.

5.	Check the PSPSW in the DATA LIST with the Honda PGM Tester or the HDS. Does it change to ON? YES - The PSP switch signal circuit is OK.n NO - Go to 6.

6.	Disconnect the PSP switch 2P connector.

7.	Check the PSPSW in the DATA LIST with the Honda PGM Tester or the HDS. Does it change to ON? YES - Replace the PSP switch.n NO - Go to 8.

8.	Turn the ignition switch OFF.

9.	Jump the SCS line with the Honda PGM tester or the HDS.

10.	Disconnect ECM/PCM connector E (31P).

11.

Check for continuity between PSP switch 2P connector terminal No. 1 and body ground.

PSP SWITCH 2P CONNECTORWire side of female terminalsPSPSW (BLU/YEL)

Is there continuity?

YES - Repair short in the wire between ECM/PCM (E16) and the PSP switch.

NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n

12.	Turn the ignition switch OFF.

13.	Disconnect the PSP switch 2P connector.

14.	Connect the PSP switch 2P connector terminals No. 1 and No. 2 with a jumper wire, then start the engine. PSP SWITCH 2P CONNECTORWire side of female terminalsPSPSW (BLU/YEL)GND (BLK)JUMPER WIRE

15.	Check the PSPSW in the DATA LIST with the Honda PGM Tester or the HDS. Does it change to OFF? YES - Replace the PSP switch.n NO - Go to 16.

16.	Turn the ignition switch OFF.

17.	Remove the jumper wire from the PSP switch 2P conncetor.

18.	Jump the SCS line with the Honda PGM Tester or the HDS.

19.	Disconnect ECM/PCM connector E (31P).

20.	Connect the PSP SWITCH 2P connector terminal No. 1 and body ground with a jumper wire. PSP SWITCH 2P CONNECTORWire side of female terminalsPSPSW (BLU/YEL)JUMPER WIRE

21.	Check for continuity between body ground and ECM/PCM connector terminal E16. ECM/PCM CONNECTOR E (31P)Wire side of female terminalsPSP SW (BLU/YEL) Is there continuity? YES - Go to 22. NO - Repair open in the wire between the PSP switch and ECM/PCM (E16).n

22.

Check for continuity between PSP switch 2P connector terminal No. 2 and body ground.

PSP SWITCH 2P CONNECTORWire side of female terminalsGND (BLK)

Is there continuity?

YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n

NO - Repair open in the wire between the PSP switch and G201.n