2010 Acura Truck MDX V6-3.7L Page 46

Go to step 13.

3. Clear the DTC with the HDS.

4. Turn the ignition switch to LOCK (0) and then back to ON (II).

5. Turn the windshield wiper switch ON, and then OFF.

6. Check for DTCs with the HDS.

Is DTC B1077 indicated?

YES -

Go to step 7.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.?

7. Select BODY ELECTRICAL SYSTEM SELECT menu, then enter the DATA LIST menu.

8. Check the ON/OFF information of the Windshield wiper motor park switch with the HDS.

Is OFF indicated when the motor is stopped, and ON intermittently indicated when the motor runs?

YES -

Faulty relay control module, replace the under-hood fuse/relay box See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and

Repair/Under-Hood Fuse/Relay Box Removal and Installation.?

NO -

Go to step 9.

9. Turn the ignition switch to LOCK (0).

10. Disconnect the windshield wiper motor 5P connector.

11. Disconnect under-hood fuse/relay box connector A (4P).

12. Check for continuity between windshield wiper motor 5P connector terminal No. 4 and under-hood fuse/relay box connector A (4P) terminal

No. 2.

Is there continuity?

YES -

Faulty relay control module, replace the under-hood fuse/relay box See: Maintenance/Fuses and Circuit Breakers/Fuse Block/Service and

Repair/Under-Hood Fuse/Relay Box Removal and Installation.?

NO -

Repair an open in the wire. ?

13. Turn the ignition switch to LOCK (0), and then check the No. 11 (30 A) and No. 31 (15 A) fuses in the under-dash fuse/relay box.

2010 Acura Truck MDX V6-3.7L Page 87

Go to step 13.

NO -

Check for an open in the wire between the rear power transistor and body ground. If the wire is OK, check for poor ground at G503.?

13. Connect rear power transistor 4P connector terminals No. 2 and No. 4 with a jumper wire.

14. Turn the ignition switch to ON (II).

Does the rear blower motor run at high speed?

YES -

Go to step 15.

NO -

Repair an open in the ORN wire between the rear power transistor and the rear blower motor.?

15. Turn the ignition switch to LOCK (0).

16. Disconnect the jumper wire.

17. Disconnect climate control unit connector B (14P).

18. Check for continuity between body ground and climate control unit connector B (14P) terminals No. 13 and No. 14 individually.

Is there continuity?

YES -

Repair a short to body ground in the wire(s) between the climate control unit and the rear power transistor.?

NO -

Go to step 19.

19. Check for continuity between the following terminals of climate control unit connector B (14P) and the rear power transistor 4P connector.