B0162

Diagnostic Chart:

Schematic:

CIRCUIT DESCRIPTION
The Driver Information Display (DID) applies 5 volts to the ambient air temperature sensor. The ambient air temperature sensor is a thermistor which will vary in resistance with temperature change. 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 decreases, the DID senses a small 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 to 16.0 volts.

CONDITIONS FOR SETTING THE DTC
The sensed temperature must be less than -40°F for more than 2 seconds.

ACTION TAKEN WHEN THE DTC SETS
OC is displayed by the DID in compass/temperature mode when the condition is present.

CONDITIONS FOR CLEARING THE DTC
^ DTC B0162 will become history when the DID no longer detects a failure.
^ History DTC B0162 will clear after 100 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.
4. Tests for the proper operation of the circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.