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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Automatic Transmission Diagnosis - 4L80-E (Diesel)) >> Diagnostic Tests >> DTC P0756: 2-3 Shift Solenoid Valve - Performance >> Conditions For Setting DTC P0756

Conditions For Setting DTC P0756

WARNING: This page is about a different car, the 2002 GMC Cab & Chassis Sierra and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC will set under the either of the following conditions:

  1. Stuck On

    After 2 occurrences:
    • 1st gear is commanded and the ratio equals 4th gear for greater than 2.75 seconds.
    • 2nd gear is commanded and the gear ratio equals 3rd for greater than 2.75 seconds.

  2. Stuck Off

    After 7 occurrences:
    • 3rd gear is commanded and the gear ratio equals 2nd for greater than 2.75 seconds.

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