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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1015 (Engine Controls Diagnosis - 4.3L (DTCS P0641-P1381)) >> Diagnosis >> DTC P1381 >> Test Description

Test Description

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 1:  This step will diagnose a malfunction in the serial data circuits.
DTC P1381

Step Action Yes No
Did you perform the Diagnostic System Check-Engine Controls? Go to Diagnostic System Check - ABS in Antilock Brake System Go to Diagnostic System Check - Engine Controls