Acura RL. Manual - part 753

Fig. 39: Checking Continuity Between SH-AWD Control Unit Connector Terminal A22 And 
Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Repair short in the wire between SH-AWD control unit connector A and the AFS control unit 
40P connector. 

NO - Check for DTCs in the VSA system. If there are VSA system DTCs, go to the indicated DTCs 
troubleshooting. If no DTCs are indicated, intermittent failure, the system is OK at this time. Check 
for loose connector terminals at the SH-AWD control unit, and repair if necessary. 

26. Measure the voltage between SH-AWD control unit connector terminal A12 and A21. 

Fig. 40: Measuring Voltage Between SH-AWD Control Unit Connector Terminal A12 And A21
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Does the output voltage change from 0-5V according to the steering wheel angle?  

YES - Go to step 33. 

NO - Go to step 27. 

27. Turn the ignition switch OFF.  

28. Disconnect the steering angle sensor 5P connector.  

29. Check for continuity between SH-AWD control unit connector terminal A21 and steering angle 

sensor 5P connector terminal No. 4. 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

Page 39 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 41: Checking Continuity Between SH-AWD Control Unit Connector Terminal A21 And 
Steering Angle Sensor 5P Connector Terminal No. 4 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 30. 

NO - Repair open in the wire between SH-AWD control unit connector A and the steering angle 
sensor. 

30. Check for continuity between SH-AWD control unit connector terminal A21 and body ground. 

Fig. 42: Checking Continuity Between SH-AWD Control Unit Connector Terminal A21 And 
Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 31. 

NO - Check for DTCs in the VSA system. If there are VSA system DTCs, go to the indicated DTCs 
troubleshooting. If no DTCs are indicated, intermittent failure, the system is OK at this time. Check 
for loose connector terminals at the SH-AWD control unit, and repair if necessary. 

31. Disconnect the AFS control unit 40P connector.  

32. Check for continuity between SH-AWD control unit connector terminal A21 and body ground. 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

Page 40 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 43: Checking Continuity Between SH-AWD Control Unit Connector Terminal A21 And 
Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Repair short in the wire between SH-AWD control unit connector A and the AFS control unit 
40P connector. 

NO - Check for DTCs in the VSA system. If there are VSA system DTCs, go to the indicated DTCs 
troubleshooting. If no DTCs are indicated, intermittent failure, the system is OK at this time. Check 
for loose connector terminals at the SH-AWD control unit, and repair if necessary. 

33. Check for continuity between SH-AWD control unit connector terminals A21 and A22. 

Fig. 44: Checking Continuity Between SH-AWD Control Unit Connector Terminals A21 And 
A22 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Replace the SH-AWD control unit (see SH-AWD CONTROL UNIT REPLACEMENT ). 

NO - Go to step 34. 

34. Check for continuity between SH-AWD control unit connector terminals A21 and A22. 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

Page 41 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 45: Checking Continuity Between SH-AWD Control Unit Connector Terminals A21 And 
A22 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Go to step 35. 

NO - Check for DTCs in the VSA system. If there are VSA system DTCs, go to the indicated DTCs 
troubleshooting. If no DTCs are indicated, intermittent failure, the system is OK at this time. Check 
for loose connector terminals at the SH-AWD control unit, and repair if necessary. 

35. Disconnect the AFS control unit 40P connector.  

36. Check for continuity between SH-AWD control unit connector terminals A21 and A22. 

Fig. 46: Checking Continuity Between SH-AWD Control Unit Connector Terminals A21 And 
A22 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES - Repair short in the wire between the steering angle sensor 5P connector and the AFS control 
unit 40P connector. 

NO - Check for DTCs in the VSA system. If there are VSA system DTCs, go to the indicated DTCs 
troubleshooting. If no DTCs are indicated, intermittent failure, the system is OK at this time. Check 
for loose connector terminals at the SH-AWD control unit, and repair if necessary. 

DTC 19-3: STEERING ANGLE SENSOR MALFUNCTION 

 

2007 Acura RL 

2005-08 DRIVELINE/AXLES Rear Differential - RL

  

me 

 

Friday, June 05, 2009 3:02:18 PM

Page 42 

© 2005 Mitchell Repair Information Company, LLC.