Circuit/System Testing

Ignition OFF/Vehicle OFF, disconnect the harness connector at the P16 Instrument Cluster.
Verify that a test lamp does not illuminate between the ignition circuit terminal 8 and ground.
- If the test lamp illuminates
  Repair the short to voltage on the ignition circuit.
- If the test lamp does not illuminate
Ignition ON/Vehicle in Service Mode.
Verify that a test lamp illuminates between the ignition terminal 8 and ground.
- If the test lamp does not illuminate and the Ignition fuse is good
1. Ignition OFF/Vehicle OFF, remove the test lamp.
2. Test for less than 2 Ω in the ignition circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, refer to Power Mode Mismatch (Without HP9) and/or Power Mode Mismatch (With HP9) .
- If the test lamp does not illuminate and the Ignition fuse is open
1. Ignition OFF/Vehicle OFF, remove the test lamp.
2. Test for infinite resistance between the ignition circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance, replace the P16 Instrument Cluster.
- If the test lamp illuminates
Replace the P16 Instrument Cluster.