| 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. 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. |
| 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. |
| 21. | Check for continuity between body ground and ECM/PCM connector terminal E16. 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. 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 |