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

4. This step tests the ability of the PCM to control the solenoid.
5. This step tests for voltage to the solenoid.
6. This step tests the ability of the PCM and the wiring to control the ground circuit.
8. This step measures the resistance of the automatic transmission wiring harness assembly and the 3-2 SS valve assembly.

Fig 1: DTC P0785 (1 Of 4)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC P0785 (2 Of 4)

Courtesy of GENERAL MOTORS CORP.

Fig 3: DTC P0785 (3 Of 4)

Courtesy of GENERAL MOTORS CORP.

Fig 4: DTC P0785 (4 Of 4)

Courtesy of GENERAL MOTORS CORP.