Test point 2

Outside temperature sensor

Open circuit Short to ground DTC 21

Diagnosis conditions

No control module fault stored. No fault on the supply voltage (5 Volt).

Open circuit

1. Pull off connector A on the heating/air conditioning control.

2. Connect ohmmeter to connector A 7 and A 12. Display: Approx. 1.2 kfl at 23 ° C

3. Pull off connector on the outside temperature sensor.

4. Connect ohmmeter to connector A 7 and pin 1 (connector, outside

5. Connect ohmmeter to connector A 12 and pin 2 (connector, outside

6. Connect voltmeter to connector A 7 and ground.

If approx. 5 Volt is displayed, check the wiring for pinching and chafing.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment