Acura RL. Manual - part 757

Fig. 59: Checking Continuity Between SH-AWD Control Unit Connector Terminal A11 And 
PCM Connector Terminal E15 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 12. 

NO - Repair open in the wire between SH-AWD control unit connector A and PCM connector E. 

12. Check for continuity between SH-AWD control unit connector terminal A10 and PCM connector 

terminal E26. 

Fig. 60: Checking Continuity Between SH-AWD Control Unit Connector Terminal A10 And 
PCM Connector Terminal E26 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Check for loose connector terminals at the SH-AWD control unit, the PCM, and G602. If all 
connections are OK, replace the SH-AWD control unit (see SH-AWD CONTROL UNIT 
REPLACEMENT ). 

NO - Repair open in the wire between SH-AWD control unit connector A and PCM connector E. 

DTC 41-2: LOSS OF COMMUNICATION WITH VSA CONTROL UNIT 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

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1. Turn the ignition switch ON (II).  

2. Make sure the HDS communicates with the vehicle and the SH-AWD control unit. If it doesn't, 

troubleshoot the DLC circuit; '05-07 models (see '05-07 MODELS ), '08 model (see '08 MODEL ).  

3. Clear the DTC with the HDS.  

4. Start the engine.  

5. Check for DTCs with the HDS. 

Is DTC 41-2 indicated?  

YES - Go to step 6. 

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

6. Check for DTCs in the VSA system with the HDS. 

Are any VSA System DTCs indicated?  

YES - Go to the indicated DTCs troubleshooting. 

NO - Go to step 7. 

7. Turn the ignition switch OFF.  

8. Disconnect SH-AWD control unit connector A (26P).  

9. Disconnect the VSA modulator-control unit 47P connector.  

10. Check for continuity between SH-AWD control unit connector terminal A11 and VSA modulator-

control unit 47P connector terminal No. 14. 

Fig. 61: Checking Continuity Between SH-AWD Control Unit Connector Terminal A11 And 
VSA Modulator-Control Unit Terminal No. 14 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

NOTE:

Before you troubleshoot, review the general troubleshooting information 
(see GENERAL TROUBLESHOOTING INFORMATION ).

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

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© 2005 Mitchell Repair Information Company, LLC. 

YES - Go to step 11. 

NO - Repair open in the wire between SH-AWD control unit connector A and the VSA modulator-
control unit connector. 

11. Check for continuity between SH-AWD control unit connector terminal A10 and VSA modulator-

control unit 47P connector terminal No. 30. 

Fig. 62: Checking Continuity Between SH-AWD Control Unit Connector Terminal A10 And 
VSA Modulator-Control Unit Terminal No. 30 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Check for loose connector terminals at the SH-AWD control unit, the VSA modulator-control 
Unit, and G602. If all connections are OK, replace the SH-AWD control unit (see SH-AWD 
CONTROL UNIT REPLACEMENT ). 

NO - Repair open in the wire between SH-AWD control unit connector A and the VSA modulator-
control unit connector. 

DTC 41-3: LOSS OF COMMUNICATION WITH GAUGE ASSEMBLY 

1. Turn the ignition switch ON (II).  

2. Make sure the HDS communicates with the vehicle and the SH-AWD control unit. If it doesn't, 

troubleshoot the DLC circuit; '05-07 models (see '05-07 MODELS ), '08 model (see '08 MODEL ).  

3. Clear the DTC with the HDS.  

4. Start the engine.  

5. Check for DTCs with the HDS. 

Is DTC 41-3 indicated?  

YES - Go to step 6. 

NOTE:

Before you troubleshoot, review the general troubleshooting information 
(see GENERAL TROUBLESHOOTING INFORMATION ).

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

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Friday, June 05, 2009 3:02:18 PM

Page 57 

© 2005 Mitchell Repair Information Company, LLC. 

NO - The system is OK at this time. 

6. Check for gauge control system DTCs with the HDS. 

Are any DTCs indicated?  

YES - Go to the indicated DTCs troubleshooting. 

NO - Go to step 7. 

7. Turn the ignition switch OFF.  

8. Disconnect SH-AWD control unit connector A (26P).  

9. Disconnect gauge assembly connector B (28P).  

10. Check for continuity between SH-AWD control unit connector terminal A11 and gauge assembly 

connector terminal B16. 

Fig. 63: Checking Continuity Between SH-AWD Control Unit Connector Terminal A11 And 
Gauge Assembly Connector Terminal B16 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 11. 

NO - Repair open in the wire between SH-AWD control unit connector A and gauge assembly 
connector B. 

11. Check for continuity between SH-AWD control unit connector terminal A10 and gauge assembly 

connector terminal B15. 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

Page 58 

© 2005 Mitchell Repair Information Company, LLC.