P1846
Automatic Transmission Fluid Pressure Switch 6
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)
Symptoms
- Incorrect gear shifting
- Jerky gear shifting
- Activation of automatic transmission emergency mode
- Increased speed when switching
- Check engine light comes on
Causes
- Transmission fluid pressure sensor malfunction
- Problems with sensor wiring or connectors
- Low transmission fluid level
- Contaminated transmission fluid
- Transmission control module (TCM) malfunction
How to Fix
- Check the level and condition of the transmission fluid
- Inspect the sensor wiring and connectors for damage
- Check sensor resistance and reference voltage
- If necessary, replace the pressure sensor
- Check the operation of the transmission control module