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Home >> Buick >> 2002 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P1381: Misfire Detected No EBTCM/Pcm Serial Data >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 2

    This step ensures that the EBCM/EBTCM is capable of transmitting the serial data on the class 2 serial data circuit.

  2. 4

    This step tests the class 2 serial data circuit at the EBCM/EBTCM for correct voltage.
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