GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Press and hold the compass and temperature display module in the ON and the OFF position.
  2. Simultaneously press and hold the U.S./metric buttons.
  3. Place the ignition switch in the RUN position.

Do all of the display segments light for 2 seconds and go OFF for 2 seconds?

--

Go to Step 2

Driver Information Center (DIC) Temperature Display Inoperative

2

The self diagnostic routine is in operation.

Does the display read PS for approximately 2 seconds?

--

Go to Step 3

Go to Step 4

3

The self diagnostic routine is in operation.

Does the display read N with a number within the specified range for approximately 2 seconds?

1-14 (north-south compensation value)

Go to Step 5

Go to Step 6

4

  1. One of the following error codes appears in the display:
  2. • E1
    • E2
    • E3
  3. Replace the compass and temperature display module.

Is the replacement complete?

--

Go to Step 3

--

5

The self diagnostic routine is in operation.

Does the display read E with a number within the specified range for approximately 2 seconds?

1-14 (east-west compensation value)

Go to Step 7

Go to Step 8

6

Replace the compass and temperature display module.

Is the replacement complete?

--

Go to Step 1

--

7

The self diagnostic routine is in operation.

Does the display a number within the specified range for approximately 2 seconds?

1-14

Go to Step 10

Go to Step 9

8

Replace the compass and temperature display module.

Is the replacement complete?

--

Go to Step 7

--

9

  1. The self diagnostic routine is complete.
  2. The routine will go through the normal prove out sequence and return to the normal display mode.
  3. Both of the north-south and the east-west compensation values should be ideally 7 or 8.

Are the values between the specified values?

6-9

Driver Information System Check

--

10

  1. The self diagnostic routine is complete.
  2. The routine will go through the normal prove out sequence and return to the normal display mode.
  3. Both of the north-south and the east-west compensation values should be ideally 7 or 8.

Does one of the values approach the specified values?

1 or 14

Go to Step 11

Driver Information System Check

11

The vehicle is highly magnetic. Refer to Electronic Compass Calibration .

Did you refer to the appropriate section?

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