Circuit Description
The Driver Information Display (DID) applies 5 volts to the ambient air temperature sensor. The ambient air temperature sensor is a thermister which varies in resistance as the temperature changes. As the resistance of the ambient air temperature sensor increases, the DID senses a larger voltage drop across the sensor, indicating a lower temperature. As the resistance of the ambient air temperature sensor decrease, the DID senses a smaller voltage drop across the sensor, indicating a higher temperature.
Conditions for Running the DTC
The DID must be fully operational within a continuous voltage supply of 9.0-16.0 volts.
Conditions for Setting the DTC
The sensed temperature must be greater than 140°C (284°F) for more than 2 seconds.
Action Taken When the DTC Sets
SC is displayed by the DID in the compass/temperature mode when the condition is present.
Conditions for Clearing the DTC
| • | DTC B0160 status changes from current to history when the condition is no longer present. |
| • | History DTC B0160 will clear after 100 consecutive fault free ignition cycles. |
| • | The DTC can be cleared with a scan tool. |
Test Description
The number(s) below refer to the step number(s) on the diagnostic table.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the driver information display diagnostic system check? | -- | Go to Step 2 | |
2 | Does the Driver Information Display (DID) display SC? | -- | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems |
Does the DID display OC? | -- | Go to Step 5 | Go to Step 4 | |
4 | Test the signal circuit of the ambient air temperature sensor for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 7 |
5 | Inspect for poor connections at the ambient air temperature sensor. Refer to Circuit Testing and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 6 |
6 | Replace the ambient air temperature sensor. Refer to outside air temperature sensor replacement. Did you complete the replacement? | -- | Go to Step 8 | -- |
7 |
Important: Perform the set up procedure for the replacement DID. Replace the DID. Refer to Driver Information Center Replacement . Did you complete the replacement? | -- | Go to Step 8 | -- |
8 |
Does the DTC reset? | -- | Go to Step 2 | System OK |
