- No fault on the supply voltage (5 Volts).
- Outside temperature higher than - 40 锟斤拷C.
Open Circuit
1. Pull off connector A on the heating/air conditioning control.
2. Connect ohmmeter to connector A-10 and A-12.
Display: approx. 3 kohms @ 23 锟斤拷C
Note:
The wires to the interior temperature sensor are routed via two additional plug connections on the heating/air conditioning control.
3. Pull off connector on the interior temperature sensor.
4. Connect ohmmeter to connector A-10 and interior sensor connector pin 5.
Display: < 5 ohms
5. Connect ohmmeter to connector A-12 and interior sensor connector pin 4.
Display: < 5 ohms
6. Connect voltmeter to connector A-10 and ground. Switch on ignition.
Display: 0 Volts
If approx. 5 Volts is displayed, check the wiring for pinching and chafing.
Short to Ground
1. Pull off connector A on the heating/air conditioning control.
2. Connect ohmmeter to connector A-7 and ground.
Display: infinity
If 0 - 5 ohms is displayed, check the wiring for pinching and chafing.
Test Point 4
TEST POINT 4
Footwell Blower Outlet Sensor Open Circuit, Short To Ground
DTC 23
Fault Effect: Substitute value: 50 锟斤拷C
Diagnosis Conditions
- No control module fault stored.
- No fault on the supply voltage (5 Volts).
- Outside temperature higher than - 30 锟斤拷C.
Open Circuit
1. Pull off connectors A and B on the heating/air conditioning control.
2. Connect ohmmeter to connectors A-12 and B-5.
Display: approx. 2.8 kohms @ 23 锟斤拷C.
3. Pull off connector on the blower outlet sensor.
4. Connect ohmmeter to connector A-12 and blower outlet sensor connector pin 2.
Display: < 5 ohms
5. Connect ohmmeter to connector B-5 and blower outlet sensor connector pin 1.