DTC 123

UnclassifiedCooling

What This Code Means

DST displays ECT temperature of 230 degrees F. or greater with the engine running; Temperature gauge indicates 225 degrees F. or greater

Possible Causes

  • •Cooling system failure
  • •Intermittent problem

Suggested Actions

  1. 1Perform On-Board (OBD) System Check
  2. 2Repair Cooling system
  3. 3Verify ECT circuit function by following diagnostic test procedure for DTC-122 ECT Low Voltage
  4. 4Go to Intermittent section

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