Acura RL. Manual - part 685

Fig. 76: Identifying PGM-FI Main Relay 1 (Fl MAIN) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

18. Measure voltage between PCM connector terminal A4 and body ground. 

Fig. 77: Measuring Voltage Between PCM Connector Terminal A4 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES - Repair short to power in the wire between the PCM (A4) and PGM-FI main relay 1 (Fl MAIN), 
then go to step 20. 

NO - Go to step 19. 

19. Replace PGM-FI main relay 1 (Fl MAIN) (A). 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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Fig. 78: Identifying PCM (A4) And PGM-FI Main Relay 1 (Fl MAIN) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

20. Reconnect all connectors.  

21. Turn the ignition switch ON (II).  

22. Reset the PCM with the HDS.  

23. Turn the ignition switch OFF.  

24. Wait for 10 seconds.  

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

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

Is DTC P0563 indicated?  

YES - Check for poor connections or loose terminals at PGM-FI main relay 1 (Fl MAIN) 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 

27. Reconnect all connectors.  

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

known-good PCM (see BATTERY TEST ).  

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

Is DTC P0563 indicated?  

YES - Check for poor connections or loose terminals at PGM-FI main relay 1 (Fl MAIN) and the 
PCM. If the PCM 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

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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DTC P0602: PCM PROGRAMMING ERROR

1. Do the PCM update procedure (see UPDATING THE PCM ).  

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

Is DTC P0602 indicated?  

YES - Replace the original PCM (see PCM REPLACEMENT ). 

NO - The update is complete 

DTC P0603: PCM INTERNAL CONTROL MODULE KEEP ALIVE MEMORY (KAM) ERROR 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

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

Are any Temporary DTCs or DTCs indicated?  

YES - Go to step 4. 

NO - Intermittent failure, the system is OK at this time 

4. 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 ).  

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

Is DTC P0603 indicated?  

YES - If the PCM 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 P0630: VIN NOT PROGRAMMED OR MISMATCH 

NOTE:



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



This DTC is indicated when update is not completed.  



Do not turn the ignition switch OFF while updating the PCM. If you turn 
the ignition switch OFF before completion, the PCM can be damaged.  

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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1. Turn the ignition switch ON (II).  

2. Check the VIN with the HDS. 

Does the HDS show the vehicle's VIN?  

YES - Go to step 5. 

NO - Go to step 3. 

3. Input the VIN to the PCM with the HDS. 

Does the screen show COMPLETE?  

YES - Go to step 5. 

NO - Go to step 4. 

4. Check for DTCs with the HDS. 

Is DTC P0603 indicated?  

YES - Do the troubleshooting for P0603 (see DTC P0603: PCM INTERNAL CONTROL 
MODULE KEEP ALIVE MEMORY (KAM) ERROR ) 

NO - Go to step 9. 

5. Clear the DTC with the HDS.  

6. Turn the ignition switch OFF.  

7. Turn the ignition switch ON (II), and wait 5 seconds.  

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

Is DTC P0603 indicated?  

YES - Go to step 9. 

NO - Intermittent failure, the system is OK at this time. If any other Temporary DTCs or DTCs are 
indicated, go to the indicated DTCs troubleshooting 

9. 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 ).  

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

NOTE:



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



This DTC is stored only when the PCM does not have the VIN 
information of the vehicle. Use the HDS to input the missing VIN 
information.  

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

me 

 

Friday, June 05, 2009 2:34:59 PM

Page 85 

© 2005 Mitchell Repair Information Company, LLC.