DTC P0072
DTC P0072 : Outside Air Temperature Sensor A Circuit Low
- Before you troubleshoot, review the general troubleshooting information .
- For the outside temperature sensor circuit diagram, refer to the climate control system circuit diagram .
| DTC Description | Confirmed DTC | Pending DTC |
|---|---|---|
| P0072 Outside Air Temperature Sensor A Circuit Low |
DTC (PGM-FI)
- Problem verification
-1. Turn the vehicle to the ON mode.
-2. Clear the DTC with the HDS.
-3. Turn the vehicle to the OFF (LOCK) mode.
-4. Turn the vehicle to the ON mode, and wait 8 seconds.
-5. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P0072 Outside Air Temperature Sensor A Circuit Low DTC (PGM-FI)
Is DTC P0072 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at outside air temperature sensor A and the climate control unit. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .
- Outside air temperature sensor A check
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Outside air temperature sensor A 2P connector -3. Turn the vehicle to the ON mode.
-4. Clear the DTC with the HDS.
-5. Turn the vehicle to the OFF (LOCK) mode.
-6. Turn the vehicle to the ON mode, and wait 8 seconds.
-7. Check for Pending or Confirmed DTCs with the HDS.
DTC Description Confirmed DTC Pending DTC P0072 Outside Air Temperature Sensor A Circuit Low DTC (PGM-FI)
Is DTC P0072 indicated?
YES
Go to step 3.
NO
- Shorted wire check (TAM line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Climate control unit connector A (32P) -3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Outside air temperature sensor A 2P connector: disconnected Climate control unit connector A (32P): disconnected Test point 1 Climate control unit connector A (32P) No. 26 Test point 2 Body ground Is there continuity?
YES
Repair a short in the TAM wire between the climate control unit (A26) and outside air temperature sensor A.
NO
The TAM wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good climate control unit , then recheck. If DTC P0072 goes away and the climate control unit was substituted, replace the original climate control unit .