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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System - 4.8L, 5.3L & 6.0L (DTC P0068 To DTC P0140 Or P0160)) >> Diagnostic Information and Procedures >> DTC P0116 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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If the PCM detects a temperature difference between the ECT sensor and the IAT sensor of more than 15°C (27°F), then the vehicle must be driven for more than 400 seconds over 24 km/h (15 mph). If the IAT sensor temperature decreases more than 3°C (5°F), a block heater is detected and the test is aborted. If the IAT sensor temperature does not decrease, a block heater was not detected and DTC P0116 sets.