Transmission to ECM diagram?

2006 CHEVROLET EXPRESS

123,000 MILES • V8 • 2WD • AUTOMATIC

POWERHOUSE199216

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Need to test the 23-shift solenoid, wire and solenoid. I would like to test it through the harness before I open the transmission, please and thank you Need transmission to e c u wiring diagram, please. Codes P2761 and p0758 Somebody else has replaced both solenoids.

Aug 28, 2024 at 11:48 PM

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Yep, good call. here is a guide to help you with the testing and I have included the wiring diagrams as requested.

P2761 - Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit Low:
P0758 - Shift Solenoid 'B' Electrical:

Since chances are the shift solenoid is bad, I included how to change it out as well. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

Images (Click to enlarge)

Aug 29, 2024 at 11:20 AM