XL-7 2WD V6-3.6L (2007)
Temperature Warning Lamp/Indicator: Testing and Inspection
Engine Coolant Temperature Indicator Always On
Engine Coolant Temperature Indicator Always On
Diagnostic Instructions
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Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. See: Testing and
Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle Diagnostic Information
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Review [Strategy Based Diagnosis] for an overview of the diagnostic approach. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Strategy Based Diagnosis
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[Diagnostic Procedure Instructions - Vehicle Diagnostic Information]. See: Testing and Inspection/Initial Inspection and Diagnostic
Overview/Diagnostic Procedure Instructions - Vehicle Diagnostic Information
Circuit/System Description
The instrument panel cluster (IPC) illuminates the TEMP indicator when the engine control module (ECM) determines that the coolant temperature is
more than 128 °C (262 °F). The IPC receives a discrete input from the ECM requesting illumination.
The IPC illuminates the TEMP indicator during the display test at the start of each ignition cycle.
Circuit/System Testing
With the engine running within the normal operating temperature range, the engine coolant temperature (ECT) indicator should not be illuminated.
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If the engine coolant is not within the normal operating range, repair the overheating condition.
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If the engine coolant is within the normal operating range, replace the IPC.
Repair Instructions
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[Engine Overheating]
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[Instrument Cluster Replacement]
Repair Verification
Verify that the ECT indicator is OFF while the engine is operating.
