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Did you perform the Instrument Cluster System Check? — Go to Step 2 Go to Instrument Cluster System Check 2 1. Disconnect the Transmission Range (TR) Switch connector C2. 2. Turn the ignition switch to the RUN position. 3. Conduct the PRNDL Logic Input Test by connecting fused jumper wires between ground and the appointed cavities of the TR Switch connector. Refer to PRNDL Logic Input Test PRNDL Logic Input Test . 4. Repeat for each transmission range. Do all ranges illuminate? — Go to Step 3 Go to Step 4 3 Adjust the transmission range switch. Refer to Park/Neutral Position Switch Adjustment (4L60E); Park/Neutral Position Switch Adjustment (4L80E) Automatic Transmissions. Replace the PNP Switch. Refer to Park/Neutral Position Switch Replacement (4L60E); Park/Neutral Position Switch Replacement (4L80E) in Automatic Transmissions. Is the repair complete? — Go to Instrument Cluster System Check — 4 1. Remove the I/P Cluster. 2. Connect a J 39200 DMM (continuity) between the I/P Cluster connector and connector C2 of the TR Switch to those circuit(s) that connected to the faulty PRNDL indicators. Is continuity present in the circuit(s) tested? — Go to Step 6 Go to Step 5 5 Locate and repair the open in the circuit(s) that are faulty between the TR Switch and the I/P Cluster. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? — Go to Instrument Cluster System Check — 6 Connect a J 39200 DMM (continuity) between the I/P Cluster connector and ground to those circuit(s) that connected to the faulty PRNDL indicators. Is continuity present in the circuit(s) tested? — Go to Step 7 Go to Step 8 Locate and repair the short to ground in the circuit(s) that are faulty between the TR Switch and the I/P Cluster. Refer to Wiring 7 Repairs in Wiring Systems. Is the repair complete? — Go to Instrument Cluster System Check — 8 Replace the I/P Cluster. Refer to Instrument Panel Cluster (IPC) Replacement . Is the repair complete?