DTC 5: A Short in the Mode Control Motor Circuit
NOTE: If other short circuit DTCs are indicated at the same time, there may be an open or short to body ground in the power (5 V) circuit.
- 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 5 indicated?
YES
Go to step 2.
NO
Intermittent failure. Check for loose wires or poor connections on the mode control motor circuit.
- 2. Determine possible failure area (SENSOR 5V/S5V line, others):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.
Mode control motor 7P connector 3. Turn the vehicle to the ON mode.
4. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Mode control motor 7P connector: disconnected Test point 1 Mode control motor 7P connector No. 1 Test point 2 Body ground Is there about 5 V?
YES
The SENSOR 5V/S5V wire is OK. Go to step 3.
NO
Go to step 4.
- 3. Determine possible failure area (mode control motor, others):
1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Mode control motor 7P connector: disconnected Test point 1 Mode control motor 7P connector No. 2 Test point 2 Body ground Is there about 5 V?
YES
Replace the mode control motor .
NO
Go to step 6.
- 4. Open wire check (SENSOR 5V/S5V line):
1. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Mode control motor 7P connector: disconnected Test point 1 HVAC control unit 32P connector No. 17 Test point 2 Body ground Is there about 5 V?
YES
Repair an open in the wire between the HVAC control unit and the mode control motor.
NO
Go to step 5.
- 5. Shorted wire check (SENSOR 5V/S5V line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.
HVAC control unit 32P 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. 17 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 SENSOR 5V/S5V wire OK. Replace the HVAC control unit .
- 6. Shorted wire check (MODE-P line):
1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.
HVAC control unit 32P 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. 23 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 MODE-P wire is OK. Replace the HVAC control unit .
