P1888

CVT Speed Sensor

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$28–89 (est.)

Symptoms

Incorrect gear shifting
Transmission transition to emergency mode
Check Engine Light Illuminates
Reduced vehicle dynamics
Jerks when shifting gears

Causes

CVT speed sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Low transmission fluid level
Mechanical problems of the variator

How to Fix

Check transmission fluid level
Inspect the sensor wiring and connectors
Check the sensor resistance with a multimeter
Replace CVT speed sensor if necessary
Scan the system for other fault codes

Related codes