GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Depress and hold the MODE and the ENGLISH/METRIC buttons.
  2. With these two buttons still depressed, turn the ignition switch to the RUN position.

Are all display segments lit for 2 seconds then off for 2 seconds?

--

Go to Step 2

Go to Driver Information Center (DIC) Display Inoperative

2

The driver information display will then automatically test internal circuitry.

Does the display show PS for approximately 2 seconds?

--

Go to Step 4

Go to Step 3

3

Listed below are the error codes that can occur with the driver information display. If any of these codes exist, replace the driver information display. Refer to Driver Information Center Replacement .

    • E1 = Compass circuitry test error.
    • E2 = Analog to digital test error.
    • E3 = Non-Volatile memory test error.
    • E4 = Vehicle communication error.

Has the repair been made and the system rechecked?

--

System OK

--

4

The driver information display will then show the variation number in the temperature portion of the display along with the VAR indicator turned ON for approximately 2 seconds.

Does the display show the variation number [see value(s) column] in the temperature portion of the display?

1 - 15

Go to Step 5

Go to Step 7

5

The driver information display will then show SW (Software Revision Level) followed by the number corresponding to that software revision level for approximately 2 seconds.

Does the display show the Software Revision Level number in the temperature portion of the display?

--

Go to Step 6

Go to Step 7

6

    • The Self Diagnostics Routine is complete. The display will go through its normal prove out routine and return to display status.
    • To set the Variance, refer to Driver Information Center (DIC) or Message Center Operation .

Has the Self-Test completed all of the circuit diagnostic tests?

--

System OK

--

7

Replace the driver information display. Refer to Driver Information Center Replacement .

Has the repair been made and the system rechecked?

--

System OK

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