GM Service Manual Online
For 1990-2009 cars only

Driver Information Center (DIC) Temperature Display Inaccurate w/ Trip Computer

Step

Action

Value(s)

Yes

No

1

Was the Driver Information Center System Check performed?

--

Go to Step 2

Go to Driver Information System Check

2

  1. Disconnect the ambient air temperature sensor connector.
  2. Connect a J 39200 digital multimeter (DMM).
  3. Measure the resistance across the ambient air temperature sensor terminals at two different temperatures.
  4. Compare the readings to the specified values. Refer to Outside Air Temperature Sensor Resistance .

Are the readings within specifications?

--

Go to Step 4

Go to Step 3

3

Replace the ambient air temperature sensor. Refer to Ambient Air Temperature Gage Sensor Replacement .

Is the repair complete?

--

Go to Driver Information System Check

--

4

Replace the DIC. Refer to Driver Information Center Replacement .

Is the repair complete?

--

Go to Driver Information System Check

--

Driver Information Center (DIC) Temperature Display Inaccurate w/o Trip Computer

Step

Action

Value(s)

Yes

No

1

Was the Driver Information Center System Check performed?

--

Go to Step 2

Go to Driver Information System Check

2

  1. Disconnect the ambient air temperature sensor connector.
  2. Connect a J 39200 digital multimeter (DMM).
  3. Measure the resistance across the ambient air temperature sensor terminals at two different temperatures.
  4. Compare the readings to the specified values. Refer to Outside Air Temperature Sensor Resistance .

Are the readings within specifications?

--

Go to Step 4

Go to Step 3

3

Replace the ambient air temperature sensor. Refer to Ambient Air Temperature Gage Sensor Replacement .

Is the repair complete?

--

Go to Driver Information System Check

--

4

Replace the Driver Information Center Replacement .

Is the repair complete?

--

Go to Driver Information System Check

--