Acura RL. Manual - part 714

Fig. 195: Measuring Voltage Between PCM Connector Terminal D6 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES - Go to step 55. 

NO - Repair open in the wire between the No. 19 FUEL PUMP (20A) fuse and the PCM (D6) 

55. Measure voltage between PCM connector terminal E5 and body ground. 

Fig. 196: Measuring Voltage Between PCM Connector Terminal E5 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES - Go to step 59. 

NO - Go to step 56. 

56. Turn the ignition switch OFF.  

57. Disconnect the driver's under-dash fuse/relay box 39P connector.  

58. Check for continuity between PCM connector terminal E5 and driver's under-dash fuse/relay box 39P 

connector terminal No. 1. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

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Friday, June 05, 2009 2:35:00 PM

Page 198  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 197: Checking Continuity Between PCM Connector Terminal E5 And Driver's Under-Dash 
Fuse/Relay Box 39P Terminal 1 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -  



Replace the driver's under-dash fuse/relay box.  



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 ), then recheck. If the 
symptom/indication goes away with a known-good PCM, replace the original PCM (see PCM 
REPLACEMENT ).  

NO - Repair open in the wire between the PCM (E5) and the driver's under-dash fuse/relay box 

59. Turn the ignition switch OFF.  

60. Disconnect the driver's under-dash fuse/relay box 39 P connector.  

61. Check for continuity between PCM connector terminal A4 and driver's under-dash fuse/relay box 39P 

connector terminal No. 31. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

me 

 

Friday, June 05, 2009 2:35:00 PM

Page 199  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 198: Checking Continuity Between PCM Connector Terminal A4 And Driver's Under-Dash 
Fuse/Relay Box 39P Terminal 31 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 62. 

NO - Repair open in the wire between the PCM (A4) and the driver's under-dash fuse/relay box. 

62. Test PGM-FI main relay 1 in the driver's under-dash fuse/relay box (see POWER RELAY TEST ). 

Is PGM-FI main relay 1 OK?  

YES - Go to step 63. 

NO - Replace PGM-FI main relay 1.1 

63. Disconnect PCM connector B (24P).  

64. Check for continuity between body ground and PCM connector terminals A1, A2, A3, and B15 

individually. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

me 

 

Friday, June 05, 2009 2:35:00 PM

Page 200  © 2005 Mitchell Repair Information Company, LLC. 

Fig. 199: Checking Continuity Between Body Ground And PCM Connector Terminals A1, A2, 
A3, And B15 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 65. 

NO - Repair open in the wire between the PCM (A1, A2, A3, B15) and G101 

65. Disconnect PCM connector C (22P).  

66. Check for continuity between PCM connector terminal C6 and body ground. 

Fig. 200: Checking Continuity Between PCM Connector Terminal C6 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 67. 

NO - Go to step 68. 

 

2007 Acura RL 

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

  

me 

 

Friday, June 05, 2009 2:35:00 PM

Page 201  © 2005 Mitchell Repair Information Company, LLC.