P15B1

DTC P15B1: CMP/CKP Signal Incorrect Correlation

NOTE: Information marked with an asterisk (*) applies to CKPOUT-CKP1 line.

1. Note this freeze data:

- Engine speed
- Vehicle speed

2. Clear the DTC with the HDS.
3. Test-drive the vehicle for 20 minutes in the range of the recorded freeze data.
4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P15B1 indicated?

YES - Go to step 5.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at PCM and engine mount control unit.

5. Turn the ignition switch OFF.
6. Check for poor connections at the PCM connector A (44P) and engine mount control unit 20P connector.

Is the connection OK?

YES - Go to step 7.

NO - Repair the poor connection at PCM connector A or the engine mount control unit 20P connector, then go to step 19.

7. Turn the ignition switch OFF.
8. Disconnect the CMP sensor 3P connector.
9. Disconnect CKP sensor A/B 6P connector.
10. Disconnect the engine mount control unit 20P connector.
11. Turn the ignition switch ON (II).




12. Measure voltage between engine mount control unit 20P connector terminal No.15 (No.16)* and body ground.

Is there about 5 V?

YES - Replace the engine mount control unit, then go to step 19.

NO - Go to step 13.

13. Turn the ignition switch OFF.




14. Check for continuity between engine mount control unit 20P connector terminal No.15 (No.16)* and body ground.

Is there continuity?

YES - Repair short in the wire between the PCM (A27 (A26)*) and engine mount control unit (No.15 (No.16)*), then go to step 19.

NO - Go to step 15.

15. Jump the SCS line with the HDS.
16. Disconnect the PCM connector A (44P).




17. Connect engine mount control unit 20P connector terminal No.15 (No.16)* and body ground with the jumper wire.




18. Check for continuity between PCM connector terminal A27 (A26)* and body ground.

Is there continuity?

YES - Go to step 25.

NO - Repair open in the wire between the PCM (A27 (A26)*) and engine mount control unit (No.15 (No.16)*), then go to step 19.

19. Reconnect all connectors.
20. Turn the ignition switch ON (II).
21. Reset the PCM with the HDS.
22. Do the PCM idle learn procedure.
23. Test-drive the vehicle for 20 minutes in the range of the recorded freeze data.
24. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs with the HDS?

YES - If DTC P15B1 is indicated, check for poor connections or loose terminals at the PCM and the engine mount control unit, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.

25. Update the PCM if it does not have latest software, or substitute a known-good PCM.
26. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P15B1 is indicated, check for poor connections or loose terminals at the PCM and engine mount control unit, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM.