P1885
CVT Drive Pulley Speed Sensor Circuit
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–89 (est.)
Symptoms
- Incorrect operation of the variator
- Transmission transition to emergency mode
- Check engine light comes on
- Reduced vehicle dynamics
- Jerks when changing speed
Causes
- Drive pulley speed sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Transmission control unit malfunction
How to Fix
- Check speed sensor resistance
- Inspect the integrity of the wiring and connectors
- Check the presence of power and ground on the sensor
- Scan the variator operating parameters
- If necessary, replace the drive pulley speed sensor