PRE-RELEASE
Malfunction Indicator Lamp (MIL) Diagnosis
| Malfunction Indicator Lamp (MIL) Diagnosis |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| Circuit/System Description |
Ignition voltage is supplied to the instrument cluster. The engine control module (ECM) turns the MIL ON by grounding the MIL control circuit.
| Reference Information |
Schematic Reference
Engine Controls Schematics
Connector End View Reference
Component Connector End Views
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
| 1. |
Ignition ON, observe the DTC information with a scan tool. Verify that DTCs U0073 00, U0100 00, or U0155 00 are not set.
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| 2. |
If any of the DTCs are set, refer to
Diagnostic Trouble Code (DTC) List - Vehicle
.
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| 3. |
Ignition ON, the MIL should turn ON and OFF when commanded with a scan tool.
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| Circuit/System Testing |
Ignition ON, verify that the P16 Instrument Cluster warning indicators are illuminated.
| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Instrument Cluster Replacement
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Control Module References
for ECM replacement, setup, and programming
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