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Home >> Chevrolet >> 2003 >> Chevy Express G2500, Van Cargo Extended, 4.3 X, 4L60E/M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P0116: ECT Sensor Performance >> Conditions For Setting DTC

Conditions For Setting DTC

If the PCM detects a temperature difference of more than 27°F (15°C) between the ECT and the IAT, the vehicle must be driven for 8 minutes over 15 MPH. If the IAT sensor temperature decreases more than 5°F (3°C) then a block heater is indicated and the test is aborted. If the IAT temperature does not decrease, a block heater was not detected and DTC P0116 sets.

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