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What can cause a transmission code of p0785?

What can cause a transmission code of p0785?

Potential causes of a P0785 transmission code may include: Damaged or defective shift timing solenoid. Dirty Automatic Transmission Fluid (ATF) Low ATF. Obstruction in ATF passages. Broken or damaged wiring harness. TCM issue. ECM issue.

What was the p0783 code on a 2001 Chevy Silverado?

We’re working on a 2001 Chevy Silverado 2500HD.It was stuck in limp mode. We first got the P0783-85 codes, so we replaced both shift solenoids, as well as the wiring harness. Still shot the same codes and was stuck in limp mode. So we replaced the transmission. Still didn’t work.

What causes check engine light and trouble code p1860?

GM has issued a technical service bulletin 01-07-30-002C for the vehicles listed below. GM has advised that the most likely cause for a check engine light and trouble codes P0740, P0753, P0758, P0785, and P1860 may be a faulty ignition switch that causes an open circuit to the transmission.

Potential causes of a P0785 transmission code may include: Damaged or defective shift timing solenoid. Dirty Automatic Transmission Fluid (ATF) Low ATF. Obstruction in ATF passages. Broken or damaged wiring harness. TCM issue. ECM issue.

We’re working on a 2001 Chevy Silverado 2500HD.It was stuck in limp mode. We first got the P0783-85 codes, so we replaced both shift solenoids, as well as the wiring harness. Still shot the same codes and was stuck in limp mode. So we replaced the transmission. Still didn’t work.

GM has issued a technical service bulletin 01-07-30-002C for the vehicles listed below. GM has advised that the most likely cause for a check engine light and trouble codes P0740, P0753, P0758, P0785, and P1860 may be a faulty ignition switch that causes an open circuit to the transmission.

What does the p0785 code in the Transmission Control Module mean?

What the P0785 code means. The transmission control module, or TCM, uses data from the shift/timing solenoids to manage hydraulic fluid transfers between circuits, and to perform changes in transmission gear ratios in order to accelerate, decelerate, optimize fuel efficiency, and maximize engine performance.

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Ruth Doyle