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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Automatic Transmission - 4L60-E/4L65-E (Service & Replacement)) >> Diagnostic Information and Procedures >> DTC P0740: Open, Short To Ground Or Short To Power In The Tcc Solenoid Valve Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 4.  This step tests for voltage to the solenoid.
  2. 5.  This step tests the ability of the PCM and wiring to control the ground circuit.
  3. 7.  This step tests the resistance of the TCC solenoid valve and the automatic transmission (AT) wiring harness assembly.
Fig 1: DTC P0740 (1 Of 3)
G02423998Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P0740 (2 Of 3)
G02423999Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0740 (3 Of 3)
G02424000Courtesy of GENERAL MOTORS CORP.
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