GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the Driver Information Center Description and perform the necessary inspections?

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Go to Step 2

Go to Diagnostic Starting Point

2

Disconnect the ambient air temperature sensor connector.

Does the display read SC?

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Go to Step 3

Go to Step 4

3

Repair the short to ground in CKT 735 (LT GRN/BLK). Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 5

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4

Replace the ambient air temperature sensor. Refer to Ambient Air Temperature Sensor Replacement in Body Front End.

Did you complete the replacement?

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Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 2