OBD Guide

P0785

Shift Timing Solenoid A

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Incorrect gear shifting
  • Hard or abrupt shifts
  • Delays when shifting gears
  • Switching to emergency mode of the gearbox
  • Increased fuel consumption

Causes

  • Shift Solenoid A Malfunction
  • Open or short circuit in solenoid circuit
  • Poor electrical connection
  • Low or contaminated transmission fluid
  • Transmission control module (TCM) problems

How to Fix

  1. Check the level and condition of the transmission fluid
  2. Check the solenoid circuit for opens and short circuits.
  3. Check solenoid electrical connections
  4. Replace faulty shift solenoid A
  5. If necessary, replace transmission fluid and filter

Related codes

Error P0785 by Vehicle Brand