GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Check for a poor connection or open in CKT 640 between the driver information display harness connector terminal 14 and the underhood accessory wiring junction block harness connector C2 terminal F7.

Is there a poor connection or open in CKT 640?

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Go to Step 2

Go to Step 3

2

Repair the poor connection or open in CKT 640 between the driver information display harness connector terminal 14 and the underhood wiring junction block harness connector C2 terminal F7.

Has the repair been made and the system rechecked?

--

System OK

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3

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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