Acura RL. Instruction — page 752

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

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 — Repair open in the wire between SH-AWD control unit connector A and the steering angle
sensor connector. Check for loose connector terminals at the SH-AWD control unit and repair if
necessary.

DTC 19-2: STEERING ANGLE SENSOR (SHORT)

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 19-2 indicated?

YES — Go to step 6.

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

6. Check the counter value of the steering angle sensor with the HDS.

Does the counter value change according to the steering wheel angle?

YES — Go to step 7.

NO — Go to step 16.

7. Turn the ignition switch OFF.

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

9. Turn the ignition switch ON (II).

10. Measure the voltage between SH-AWD control unit connector terminals A8 and A12.

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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© 2005 Mitchell Repair Information Company, LLC.

Fig. 33: Measuring Voltage Between SH-AWD Control Unit Connector Terminals A8 And A12
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 0.3 V or more when the steering wheel is in the neutral position (straight ahead)?

YES — Go to step 11.

NO — Replace the SH-AWD control unit (see SH-AWD CONTROL UNIT REPLACEMENT ).

11. Turn the ignition switch ON (II).

12. Disconnect the steering sensor 5P connector.

13. Check for continuity between SH-AWD control unit connector terminal A8 and body ground.

Fig. 34: Checking Continuity Between SH-AWD Control Unit Connector Terminal A8 And
Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES — Go to step 14.

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.

14. Disconnect the AFS control unit 40P connector.

15. Check for continuity between SH-AWD control unit connector terminal A8 and body ground.

2007 Acura RL

2005-08 DRIVELINE/AXLES Rear Differential — RL

me

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Page 36

© 2005 Mitchell Repair Information Company, LLC.

Fig. 35: Checking Continuity Between SH-AWD Control Unit Connector Terminal A8 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.

16. Turn the ignition switch OFF.

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

18. Turn the ignition switch ON (II).

19. Measure the voltage between SH-AWD control unit connector terminals A12 and A22.

Fig. 36: Measuring Voltage Between SH-AWD Control Unit Connector Terminals A12 And A22
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Does the output voltage change from 1.5-4 V according to the steering wheel angle?

YES — Go to step 26.

NO — Go to step 20.

20. Turn the ignition switch OFF.

21. Disconnect the steering sensor 5P connector.

22. Check for continuity between SH-AWD control unit connector terminal A22 and steering angle

sensor 5P connector terminal No. 2.

2007 Acura RL

2005-08 DRIVELINE/AXLES Rear Differential — RL

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Page 37

© 2005 Mitchell Repair Information Company, LLC.

Fig. 37: Checking Continuity Between SH-AWD Control Unit Connector Terminal A22 And
Steering Angle Sensor 5P Connector Terminal No. 2

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES — Go to step 23.

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

23. Check for continuity between SH-AWD control unit connector terminal A22 and body ground.

Fig. 38: Checking Continuity Between SH-AWD Control Unit Connector Terminal A22 And
Body Ground

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES — Go to step 24.

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.

24. Disconnect the AFS control unit 40P connector.

25. Check for continuity between SH-AWD control unit connector terminal A22 and body ground.

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.

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