P1784
L-R Pressure Switch Circuit
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–44 (est.)
Symptoms
- Incorrect gear shifting
- Delays when shifting gears
- Jerks when moving
- Check Engine Light on Dashboard
- Emergency transmission
Causes
- Pressure sensor malfunction
- Open or short circuit in the sensor circuit
- Problems with the transmission control module
- Oxidized or damaged connectors
- Lack of transmission fluid
How to Fix
- Check transmission fluid level
- Inspect the sensor connectors and wiring harness
- Check the resistance of the pressure sensor
- Scan the transmission control module for errors
- If necessary, replace the pressure sensor