Acura RL. Manual - part 683

Fig. 68: Measuring Voltage Between CMP Sensor 3P Connector Terminals No. 2 And No. 3
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there battery voltage?

YES - Go to step 16.

NO - Repair open in the wire between the CMP sensor and G101, then go to step 18.

11. Measure voltage between PCM connector terminal B8 and body ground.

Fig. 69: Measuring Voltage Between PCM Connector Terminal B8 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there about 5 V?

YES - Repair open in the wire between the PCM (B8) and the CMP sensor, then go to step 18.

NO - Go to step 12.

12. Turn the ignition switch OFF.

13. Jump the SCS line with the HDS.

14. Disconnect PCM connector B (24P).

15. Check for continuity between PCM connector terminal B8 and body ground.

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:59 PM

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Fig. 70: Checking Continuity Between PCM Connector Terminal B8 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES - Repair short in the wire between the PCM (B8) and the CMP sensor, then go to step 18.

NO - Go to step 26.

16. Turn the ignition switch OFF.

17. Replace the CMP sensor (see CMP SENSOR REPLACEMENT ).

18. Reconnect all connectors.

19. Turn the ignition switch ON (II).

20. Reset the PCM with the HDS.

21. Clear the CKP pattern with the HDS.

22. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).

23. Do the CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP)

PATTERN LEARN ).

24. Start the engine.

25. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0340 indicated?

YES - Check for poor connections or loose terminals at the CMP 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 DTCs troubleshooting

26. Reconnect all connectors.

27. Update the PCM if it does not have the latest software (see UPDATING THE PCM ), or substitute a

known-good PCM (see SUBSTITUTING THE PCM ).

28. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0340 indicated?

YES - Check for poor connections or loose terminals at the CMP sensor and the PCM. If the PCM

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

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was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then recheck. If the
PCM was substituted, go to step 1.

NO - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the
original PCM (see PCM REPLACEMENT ). If any other Temporary DTCs or DTCs are indicated,
go to the indicated DTCs troubleshooting

DTC P0344: CMP SENSOR INTERMITTENT INTERRUPTION

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine, and let it idle 10 seconds.

4. Check the CMP NOISE 2 count in the DATA LIST with the HDS.

Are 0 counts indicated?

YES - Go to step 7.

NO - Go to step 5.

5. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:



ENGINE SPEED



VSS

6. Check the CMP NOISE 2 count in the DATA LIST with the HDS.

Are 0 counts indicated?

YES - Go to step 7.

NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals
at the CMP sensor and the PCM

7. 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 8.

NO - Reconnect or repair the connectors or terminals, then go to step 11.

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot,
and review the general troubleshooting information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

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8. Check for damage to the CMP sensor pulse projection on the front camshaft pulley (see CMP

SENSOR REPLACEMENT ).

Is there damage?

YES - Replace the front camshaft pulley (see CAMSHAFT, ROCKER ARM ASSEMBLY,
CAMSHAFT SEAL, AND PULLEY INSTALLATION ), then go to step 11.

NO - Go to step 9.

9. Turn the ignition switch OFF.

10. Replace the CMP sensor (see CMP SENSOR REPLACEMENT ).

11. Turn the ignition switch ON (II).

12. Reset the PCM with the HDS.

13. Clear the CKP pattern with the HDS.

14. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).

15. Do the CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP)

PATTERN LEARN ).

16. Start the engine, and let it idle 10 seconds.

17. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0344 indicated?

YES - Check for poor connections or loose terminals at the CMP 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 DTCs troubleshooting

DTC P0562: CHARGING SYSTEM LOW VOLTAGE

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine.

4. Check under these conditions:



A/Con



Temperature control at maximum cool

NOTE:



Before you troubleshoot, record all freeze data and any on-board
snapshot, and review the general troubleshooting information (see
GENERAL TROUBLESHOOTING INFORMATION ).



If any high current load accessories are installed, this DTC can beset.



If DTC P16BB and/or P16BC is stored at the same time as DTC P0562,
troubleshoot DTC P16BB and/or P16BC first, then recheck for DTC
P0562.

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:34:59 PM

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