GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Instrument Cluster System Check?

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Go to Step 2

Go to Diagnostic System Check - Instrument Cluster

2

  1. Connect a scan tool.
  2. While observing the status of the English/Metric switch, press the E/M switch.

Does the English/Metric data change conversions?

--

Go to Step 3

Go to Step 4

3

  1. Drive the vehicle.
  2. Place the DIC display in Average Fuel Economy.
  3. Press the E/M switch.

Do both Instrument Cluster displays change between English and Metric?

--

Go to Diagnostic System Check - Instrument Cluster

Go to Step 10

4

  1. Turn the ignition switch to the OFF position.
  2. Disconnect the DIC Display switch assembly.
  3. Turn the ignition switch to the ON position.
  4. Using a DMM, test for voltage at terminal 4 circuit 811 LT BLU.

Is the measured voltage the same as the specified value?

B+

Go to Step 5

Go to Step 7

5

Using a DMM, test terminal 2 circuit 1550 BLK for an open.

Is circuit 1550 open?

--

Go to Step 8

Go to Step 6

6

  1. Using scan tool, read FEIC Reset.
  2. Using a fused 3-amp jumper wire, jumper terminals 4 and 2 of the DIC switch harness connector.

Does the FEIC Reset data change from OFF to ON?

--

Go to Step 9

Go to Step 10

7

Repair open or poor connection in circuit 811 LT BLU.

Did you complete the repair and test the system?

--

Go to Diagnostic System Check - Instrument Cluster

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8

Repair open or loose terminal in circuit 1550 BLK.

Did you complete the repair and test the system?

--

Go to Diagnostic System Check - Instrument Cluster

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9

Replace the DIC switch assembly.

Did you complete the repair and test the system?

--

Go to Diagnostic System Check - Instrument Cluster

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10

Replace the IP cluster. Refer to Instrument Cluster Replacement .

Is the repair complete?

--

Go to Diagnostic System Check - Instrument Cluster

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