DTC troubleshooting
DTC TROUBLESHOOTING CHART
| Step |
Action |
YES |
NO |
| 1 |
Check outside air temperature sensor
- Turn ignition switch to OFF position.
- Disconnect connector from outside air temperature sensor.
- Check outside air temperature sensor for resistance referring to OUTSIDE AIR TEMPERATURE SENSOR INSPECTION (IF EQUIPPED) .
Is it in good condition? |
Go to Step 2. |
Replace outside air temperature sensor. |
| 2 |
Check outside air temperature sensor circuit
- Turn ignition switch to ON position.
- Measure voltage between "WHT/BLK" terminal of outside air temperature sensor connector and vehicle body ground.
Is voltage 4 - 6 V? |
Go to Step 3. |
Open or short in "WHT/BLK" circuit. If OK, substitute a known-good BCM and recheck. |
| 3 |
Check outside air temperature sensor circuit
- Turn ignition switch to OFF position.
- Check for proper connection to "G31-21" terminal of BCM connector.
- If OK, measure resistance between "BLK/RED" terminal of outside air temperature sensor connector and vehicle body ground.
Is resistance 1 Ω or less? |
Substitute a known-good BCM and recheck. |
Open or high resistance in "BLK/RED" circuit. |