Service Information

Orlando

Malfunction Indicator Lamp (MIL) Diagnosis

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Ignition voltage is supplied to the instrument cluster. The engine control module (ECM) turns the MIL ON by grounding the MIL control circuit.

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Control Module References for scan tool information

Ignition ON, observe the DTC information with a scan tool. Verify that DTCs U0073 00, U0100 00, or U0155 00 are not set.

⇒	If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

Ignition ON, verify that the P16 Instrument Cluster warning indicators are illuminated.

⇒	If the P16 Instrument Cluster warning indicators are not illuminated, test the P16 Instrument Cluster ignition circuit terminal 31 for a short to ground or an open/high resistance. If the circuit tests normal and the ignition circuit fuse is open, replace the P16 Instrument Cluster.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•	Instrument Cluster Replacement

•	Control Module References for ECM replacement, setup, and programming