Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2. An ECT failure could cause a DTC P0126 to set, so correct any ECT DTCs that are set.
2. 6. If it is obvious that the engine is not reaching full operating temperature, for example the radiator hoses never gets very warm, or there is a complaint of little or no heat from the heater, this step could be skipped.

Fig 1: DTC P0126

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