GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Century 🢒 Body and Accessories 🢒 Instrument Panel, Gages, and Console 🢒 Driver Information Center (DIC) Switch Inoperative

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

    2.

  2. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.

Step

Action

Yes

No

Schematic Reference: Instrument Cluster Schematics

DEFINITION: The MODE switch, RESET switch, and/or E/M switch is inoperative.

1

Did you perform the Instrument Cluster Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the FEIC RESET parameter in the IPC data list.

Does the FEIC RESET parameter display Off?

Go to Step 3

Go to Step 7

3
  1. Press the RESET switch.
  2. With a scan tool, observe the FEIC RESET parameter.

Does the FEIC RESET parameter display On?

Go to Step 4

Go to Step 8

4

With a scan tool, observe the FEIC MODE parameter.

Does the FEIC MODE parameter display Off?

Go to Step 5

Go to Step 7

5
  1. Press the MODE switch.
  2. With a scan tool, observe the FEIC MODE parameter.

Does the FEIC MODE parameter display On?

Go to Step 6

Go to Step 9

6

With a scan tool, observe the English/Metric State parameter.

Press the E/M switch.

Does the English/Metric State parameter switch between English and Metric?

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

Go to Step 10

7
  1. Turn OFF the ignition.
  2. Disconnect the DIC switch(s).
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the FEIC RESET and FEIC MODE parameter.

Does the FEIC RESET and FEIC MODE parameter display Off?

Go to Step 15

Go to Step 12

8

  1. Turn OFF the ignition.
  2. Disconnect the DIC switch(s).
  3. Connect a 3 amp fused jumper wire between the DIC Set/reset switch signal circuit and a good ground.
  4. Turn ON the ignition, with the engine OFF.
  5. With a scan tool, observe the FEIC RESET parameter.

Does the FEIC RESET parameter display On?

Go to Step 11

Go to Step 13

9

  1. Turn OFF the ignition.
  2. Disconnect the DIC switch(s).
  3. Connect a 3 amp fused jumper wire between the DIC select menu switch signal circuit and a good ground.
  4. Turn ON the ignition, with the engine OFF.

Does the DIC toggle between modes when the ground is applied and removed?

Go to Step 15

Go to Step 14

10
  1. Turn OFF the ignition.
  2. Disconnect the DIC switch(s).
  3. Connect a 3 amp fused jumper wire between the metric conversion switch signal circuit and a good ground.
  4. Turn ON the ignition, with the engine OFF.

Does the DIC toggle between English and Metric when the ground is applied and removed?

Go to Step 11

Go to Step 16

11

Test the ground circuit of the DIC switch for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 15

12

Test the DIC set/reset switch signal or DIC menu select circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

13

Test the DIC set/reset switch signal circuit for an open, a high resistance, or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

14

Test the DIC select menu switch signal circuit for an open, a high resistance, a short to ground, or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

15

Inspect for poor connections at the DIC switch(s). 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 20

Go to Step 18

16

Test the metric conversion switch signal circuit for an open, a high resistance, a short to ground, or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

17

Inspect for poor connections at the harness connector of the IPC. 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 20

Go to Step 19

18

Replace the DIC switch(s). Refer to Driver Information Display Switch Replacement .

Did you complete the replacement?

Go to Step 20

--

19

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

Go to Step 20

--

20

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2