GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

Schematic Reference: Driver Information System Schematics

1

Did you perform the Driver Information Center Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Driver Information Systems

2

  1. Turn ON the ignition, with the engine OFF.
  2. Observe the DIC operation.

Does the DIC operate normally?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Install the scan tool.
  2. With the scan tool, observe the Run/Accy/Rap Voltage parameter in the DIC data list.

Does the DIC Run/Accy/Rap Voltage parameter indicate any voltage?

--

Go to Step 4

Go to Step 5

4

Inspect for poor connections at the harness connector of the DIC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 7

Go to Step 6

5

Repair the open, a short to ground or a high resistance in the RAP fuse supply voltage circuit of the DIC. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 7

--

6

Replace the DIC. Refer to Driver Information Center Replacement .

Did you complete the replacement?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2