GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1998 🢒 Grand Prix 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 Air Temperature Display Inaccurate

Step

Action

Value(s)

Yes

No

1

Did you perform the HVAC Air Delivery System Check?

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Go to Step 2

Go to HVAC Air Delivery System Check

2
  1. Inspect for any diagnostic trouble codes.
  2. If no codes are set, replace the faulty sensor.

    3. Refer to:

  3. Inspect the system.

Is the repair complete?

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System OK

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