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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Displays And Gages) >> Diagnostic Information and Procedures >> Driver Information Center (DIC) Switch(es) Inoperative

Driver Information Center (DIC) Switch(es) Inoperative

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Driver Information Center (DIC) Switch(es) Inoperative

Step Action Yes No
Schematic Reference: Instrument Cluster Schematics 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Install a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. Press and release each of the driver information center (DIC) switches.
  4. With a scan tool, observe the DIC switch parameters in the IPC Input/Output data list.
Does the scan tool display On when each switch is pressed and Off when each switch is released?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3 Does the scan tool display Off when each switch is pressed? Go to Step 9  Go to Step 4 
4 Does the scan tool always display On for the suspect switch even when the switch is released? Go to Step 5  Go to Step 6 
5
  1. Turn the ignition OFF.
  2. Disconnect the DIC switch connector.
  3. Turn the ignition ON, with the engine OFF.
  4. With a scan tool, observe the suspect DIC switch parameter.
Does the scan tool display On for the suspect switch?		 Go to Step 7  Go to Step 12 
6
  1. Turn the ignition OFF.
  2. Disconnect the DIC switch connector.
  3. Connect a 3-amp fused jumper wire between the signal circuit of the suspect DIC switch and a good ground. Refer to Circuit Testing .
  4. Turn the ignition ON, with the engine OFF.
  5. With a scan tool, observe the suspect DIC switch parameter.
Does the scan tool display On for the suspect switch?		 Go to Step 10  Go to Step 8 
7 Test the signal circuit of the suspect DIC switch for a short to ground. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 11 
8 Test the signal circuit of the suspect DIC switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 11 
9 Test the ground circuit of the DIC switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 10 
10 Inspect for poor connections at the harness connector of the DIC switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 12 
11 Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 13 
12 Replace the DIC switch. Refer to Steering Wheel Control Switch Assembly Replacement .
Did you complete the replacement?		 Go to Step 14  -
13 Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 14  -
14 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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