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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays, Gauges And Console >> Diagnostic Information and Procedures >> PRNDL Display Park Indicator Inoperative

PRNDL Display Park Indicator Inoperative

PRNDL Display Park Indicator Inoperative

Step Action Value(s) Yes No
Schematic Reference:  Instrument Cluster Schematics  
1 Did you perform the Instrument Cluster Diagnostic System Check? - Go to Step 2  Go to Diagnostic System Check - Instrument Cluster 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Place the shift lever in the PARK position.
Does the PRNDL display identify the PARK position?
- Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Install a scan tool.
  2. With the scan tool, observe the Park Switch Parameter in the IPC Inputs data list.
Does the scan tool display Closed?
- Go to Go to Step 4 
4
  1. Disconnect the park switch.
  2. Connect a fused jumper wire between the park switch signal circuit and a good ground.
  3. With the scan tool, observe the Park Switch parameter.
Does the scan tool display Closed?
- Go to Step 6  Go to Step 5 
5 Test the park switch signal circuit 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 11  Go to Step 8 
6 Test the ground circuit of the park 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 11  Go to Step 7 
7 Inspect for poor connections at the harness connector of the park switch. 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 11  Go to Step 9 
8 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 11  Go to Step 10 
9 Replace the park switch. Refer to Linear Shift Assembly Replacement - On Vehicle in Steering Wheel and Column - Tilt.
Did you complete the replacement?
- Go to Step 11  -
10 Replace the IPC. Refer to Instrument Cluster Replacement .
Did you complete the replacement?
- Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?
- System OK Go to Step 3