For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Important: In order to avoid misdiagnosis, set the J 39200 to zero before you take any measurements.
1 | Check the vehicle for Diagnostic Trouble Codes (DTCs). Are any DTCs present? | -- | Go to Diagnostic Trouble Code (DTC) List in Engine Controls | Go to Step 2
2 |

1. Disconnect the ambient air temperature sensor.
2. Turn the ignition switch to the RUN position.

Does the driver information display still read SC?

--

Go to Step 3

Go to Step 6

3 |

1. Turn the ignition switch to the OFF position.
2. Using a J 39200 DMM, probe between the driver information display harness connector terminal 10 and ground.

Does CKT 735 show continuity to ground?

--

Go to Step 4

Go to Step 5

4 | Repair short to ground in CKT 735 between the driver information display harness connector terminal 10 and the ambient air temperature sensor harness connector terminal A. Has the repair been made and the system rechecked? | -- | System OK | --
5 | Replace the driver information display. Refer to Driver Information Center Replacement . Has the repair been completed and the system rechecked? | -- | System OK | --
6 | Replace the ambient air temperature sensor. Refer to Ambient Air Temperature Gage Sensor Replacement . Has the repair been made and the system rechecked? | -- | System OK | --