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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling >> Diagnostic Information and Procedures >> Engine Overheated Indicator Always On

Engine Overheated Indicator Always On

Engine Overheated Indicator Always On

Step Action Yes No
DEFINITION: The Engine Hot indicator is always ON.
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Start the engine.
Does the Check Gages indicator illuminate?
Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections
3
  1. Install a scan tool.
  2. With the scan tool, observe the ECT Sensor parameter in the powertrain control module (PCM) data list.
Does the scan tool indicate that the ECT Sensor parameter is within the temperature range shown on the temperature gage?
Go to Engine Overheating  Go to Step 4 
4 Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement (Left Hand Drive) or Instrument Cluster Replacement (Right Hand Drive) .
Did you complete the replacement?
Go to Step 5  -
5 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2