P1788
3-2 Timing/Coast Clutch Solenoid Circuit Open Conditions
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Gear shifting problems
- The gearbox goes into emergency mode
- Check Engine light comes on
- Unstable engine operation when shifting gears
- Loss of power during acceleration
Causes
- Open circuit in solenoid circuit
- Clutch solenoid malfunction
- Wiring harness damage
- Oxidation or damage to connectors
- Malfunction of the transmission control unit (rare)
How to Fix
- Check the continuity of the solenoid circuit
- Check solenoid resistance
- Inspect and clean connectors
- Replace solenoid if necessary
- Check the operation of the gearbox control unit