Acura RL. Manual - part 524

ground. 

Fig. 9: Checking Continuity Between Gauge Control Module Connector A (20P) Terminal No. 
18 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 15. 

NO - Repair open in the wire between the gauge control module and the secondary fuel gauge sending 
unit, then go to step 25. 

15. Connect fuel pump 5P connector terminal No. 2 to body ground with a jumper wire. 

Fig. 10: Connecting Fuel Pump 5P Connector Terminal No. 2 To Body Ground With Jumper 
Wire 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

16. Check for continuity between gauge control module connector A (20P) terminal No. 19 and body 

ground. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel Supply System - RL

  

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Fig. 11: Checking Continuity Between Gauge Control Module Connector A (20P) Terminal No. 
19 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 17. 

NO - Repair open in the wire between the gauge control module and the fuel gauge sending unit, then 
go to step 25. 

17. Disconnect the jumper wire from the fuel gauge sending unit 5P connector.  

18. Remove the fuel tank unit (see FUEL PUMP/FUEL GAUGE SENDING UNIT 

REPLACEMENT ).  

19. Test the fuel gauge sending unit (see FUEL GAUGE SENDING UNIT TEST ). 

Is the fuel gauge sending unit OK?  

YES - Go to step 20. 

NO - Replace the fuel gauge sending unit (see FUEL PUMP/FUEL GAUGE SENDING UNIT 
REPLACEMENT ), then go to step 25. 

20. Remove the secondary fuel gauge sending unit (see SECONDARY FUEL GAUGE SENDING 

UNIT REPLACEMENT ).  

21. Test the secondary fuel gauge sending unit (see SECONDARY FUEL GAUGE SENDING UNIT 

TEST ). 

Is the secondary fuel gauge sending unit OK?  

YES - Go to step 22. 

NO - Replace the secondary fuel gauge sending unit (see SECONDARY FUEL GAUGE SENDING 
UNIT REPLACEMENT ), then go to step 25. 

22. Set the float (A) to the F positions. 

Fuel tank unit  

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel Supply System - RL

  

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Fig. 12: Setting Float To F Positions (Fuel Tank Unit) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Secondary fuel gauge sending unit  

Fig. 13: Setting Float To F Positions (Secondary Fuel Gauge Sending Unit) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

23. Check the fuel gauge. 

Does the gauge move to the full position?  

YES - Go to step 31. 

NO - Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ), 
then go to step 24. 

24. Turn the ignition switch OFF.  

25. Install the parts in the reverse order of removal.  

26. Reconnect all connectors.  

27. Turn the ignition switch ON (II).  

28. Reset the PCM with the HDS.  

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

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

Is DTC P0463 indicated?  

YES - Check for poor connections or loose terminals at the gauge control module, the fuel gauge 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel Supply System - RL

  

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sending unit, and the secondary fuel gauge sending unit, then go to step 1. 

NO - Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the 
indicated DTCs troubleshooting. 

31. Turn the ignition switch OFF.  

32. Install the parts in the reverse order of removal.  

33. Turn the ignition switch ON (II).  

34. 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 ).  

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

Is DTC P0463 indicated?  

YES - Check for poor connections or loose terminals at the gauge control module, the fuel gauge 
sending unit, and the secondary fuel gauge sending unit. 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 P0627: FUEL PUMP CONTROL MODULE SYSTEM MALFUNCTION 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Turn the ignition switch to the START (III) position. 

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

Is DTC P0627 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 fuel pump control module, PGM-FI main relay 2 (FUEL PUMP), the fuel pump, and the PCM. 

5. Turn the ignition switch OFF.  

6. Check the No. 19 FUEL PUMP (20 A) fuse in driver's under-dash fuse/relay box. 

NOTE:

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

NOTE:

This vehicle has an auto control mode starting system. It keeps the 
starter motor running after the ignition switch is released for 15 
seconds, or until the engine starts.

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE Fuel Supply System - RL

  

me 

 

Friday, June 05, 2009 3:13:31 PM

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© 2005 Mitchell Repair Information Company, LLC.