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Home >> Volkswagen >> 2005 >> Jetta TDI, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (1.9L - Fuel Injection Glow Plug, Engine Code ALH, From My 2002 (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Measured value blocks >> Evaluating Measured value blocks, at idle >> Evaluation: Coolant temperature display

Evaluation: Coolant temperature display

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VAG1551 display Possible cause of malfunction Corrective action
Large deviation from ambient temperature
  • Short circuit or Engine Coolant Temperature (ECT) Sensor G62 inoperative
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