P2786
Generic (SAE) Basic entry
Gear Shift Actuator Temperature Too High
Severity
Medium
Typical repair cost
80 – 900 EUR
System
Powertrain
What it means
P2786 is stored when the measured value of the Gear Shift Actuator Temperature Too exceeds the target or safety limit that the engine control module is trying to hold, despite the control output being at its limit.
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Symptoms
- Check engine light on
- Rough or unstable idle
- Hesitation or poor acceleration
- Increased fuel consumption
- Possible limp mode with reduced power
Common causes
- Weak pump or restricted filter
- Leaking or stuck pressure regulator or control valve
- Leak in the pressure circuit or hoses
- Faulty pressure sensor giving a false reading
- Mechanical restriction or blockage
How to diagnose
- Compare the commanded and actual Gear Shift Actuator Temperature Too in live data at idle and under load
- Measure the pressure with a mechanical gauge to validate the sensor
- Inspect filters, hoses and the regulator or control valve
- Check pump supply voltage and current draw
- Replace the faulty component and recheck under load
Frequently asked questions
Can I keep driving with P2786?
Usually yes for a short time, but expect reduced performance or higher fuel use. Have it diagnosed within a few days.
Will clearing P2786 fix it?
No. Clearing only erases the stored code; it returns as soon as the monitor runs again unless the cause is repaired.
Related codes
Nearby codes in this group
- P2785Clutch Actuator Temperature Too High
- P2787Clutch Temperature Too High
- P2784Input/Turbine Speed Sensor 'A'/'B' Correlation
- P2788Auto Shift Manual Adaptive Learning at Limit
- P2783Torque Converter Temperature Too High
- P2789Clutch Adaptive Learning at Limit
- P2782Downshift Switch Circuit Intermittent/Erratic
- P2790Gate Select Direction Circuit