DTC 6: A Problem in the Mode Control Motor Circuit, Linkage, Door, or Motor
- 1. Problem verification:
1. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
2. Do the Self-Diagnostic Function with the HVAC control unit .
3. Check for DTCs.
Is DTC 6 indicated?
YES
Go to step 2.
NO
Intermittent failure. Check for loose wires or poor connections on the mode control motor circuit.
- 2. Open wire check (M-DEF line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connectors.
HVAC control unit 32P connector Mode control motor 7P connector 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode HVAC control unit 32P connector : disconnected Mode control motor 7P connector: disconnected Test point 1 HVAC control unit 32P connector No. 30 Test point 2 Mode control motor 7P connector No. 6 Is there continuity?
YES
The M-DEF wire is not open. Go to step 3.
NO
Repair an open in the wire between the HVAC control unit and the mode control motor.
- 3. Open wire check (M-VENT line):
1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode HVAC control unit 32P connector: disconnected Mode control motor 7P connector: disconnected Test point 1 HVAC control unit 32P connector No. 29 Test point 2 Mode control motor 7P connector No. 7 Is there continuity?
YES
The M-VENT wire is not open. Go to step 4.
NO
Repair an open in the wire between the HVAC control unit and the mode control motor.
- 4. Shorted wire check (M-DEF line):
1. Check for continuity between test points 1 and 2 individually.
Test condition Vehicle OFF (LOCK) mode HVAC control unit 32P connector: disconnected Mode control motor 7P connector: disconnected Test point 1 HVAC control unit 32P connector No. 30 Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire between the HVAC control unit and the mode control motor.
NO
The M-DEF wire is OK. Go to step 5.
- 5. Shorted wire check (M-VENT line):
1. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode HVAC control unit 32P connector: disconnected Mode control motor 7P connector: disconnected Test point 1 HVAC control unit 32P connector No. 29 Test point 2 Body ground Is there continuity?
YES
Repair a short to ground in the wire between the HVAC control unit and the mode control motor.
NO
The M-VENT wire is OK. Go to step 6.
- 6. Mode control motor check:
1. Test the mode control motor .
Is the mode control motor OK?
YES
Replace the HVAC control unit .
NO
Replace the mode control motor , or repair the mode control linkage or doors.
