P0785
Generic (SAE) Basic entry
Shift/Timing Solenoid
Severity
Medium
Typical repair cost
60 – 500 EUR
System
Powertrain
What it means
P0785 is defined as "Shift/Timing Solenoid". the engine control module stores it when the monitored condition for this component or system is outside the limits programmed by the manufacturer.
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Symptoms
- Check engine or transmission warning light
- Harsh, delayed or missing shifts
- Transmission stuck in one gear (limp mode)
- Shuddering or slipping under load
Common causes
- Shift/Timing Solenoid worn, contaminated or out of calibration
- Mechanical problem in the system the sensor measures
- Air, vacuum or exhaust leak influencing the reading
- Wrong or low-quality replacement part
- Wiring resistance causing a small voltage offset
How to diagnose
- Compare the live Shift/Timing Solenoid reading with a known-good value or a second sensor at idle and at 2500 rpm
- Check for air, vacuum or exhaust leaks that could skew the reading
- Inspect the component for contamination and clean it if the design allows
- Verify the part number is correct for the engine
- Replace the Shift/Timing Solenoid if the reading remains out of specification
Frequently asked questions
Can I keep driving with P0785?
Usually yes for a short time, but expect reduced performance or higher fuel use. Have it diagnosed within a few days.
Will clearing P0785 fix it?
No. Clearing only erases the stored code; it returns as soon as the monitor runs again unless the cause is repaired.