GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon - 2WD 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 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?

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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?

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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?

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Go to

    •  Diagnostic System Check - Engine Controls in Engine Controls - 4.3 L
    •  Diagnostic System Check - Engine Controls in Engine Controls - 4.8 L, 5.3 L, and 6.0 L
    •  Scan Tool Data List in Engine Controls - 6.6 L
    •  Diagnostic System Check - Engine Controls in Engine Controls - 8.1 L

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?

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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?

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Go to Step 11

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10

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

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Go to Step 11

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11

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3