Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- Turn the ignition switch ON (II).
- Clear the DTC with the HDS.
- Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters: ENGINE SPEED VSS
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P0344 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CMP sensor and the PCM.
- Check for poor or loose connections at these connectors and terminals: CMP sensor PCM Engine ground Body ground Are the connections OK? YES -Go to step 6. NO -Reconnect or repair the connectors or terminals, then go to step 9 .
- Check for damage to the CMP sensor pulse projection on the front camshaft pulley (see «CKP SENSOR REPLACEMENT»(ref-298125-S05885482552008091500000) ). Is there damage? YES -Replace the front camshaft pulley (see «CKP SENSOR REPLACEMENT»(ref-298125-S05885482552008091500000) ), then go to step 9 . NO -Go to step 7.
- Turn the ignition switch OFF.
- Replace the CMP sensor (see «CKP SENSOR REPLACEMENT»(ref-298125-S05885482552008091500000) ).
- Turn the ignition switch ON (II).
- Reset the PCM with the HDS.
- Clear the CKP pattern with the HDS.
- Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-243313-S13405059332006082300000) ).
- Do the CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-243311-S03388305952006082300000) ).
- Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters: ENGINE SPEED VSS
- Check for Temporary DTCs or DTCs with the HDS. Is DTC P0344 indicated? YES -Check for poor connections or loose terminals at the CKP sensor and the PCM, then go to step 1 . NO -Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.