P1873
Problem in CVT Pulley Pressure Control Valve Assembly Circuit
Severity
🔴 HighCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)
Symptoms
- Uneven transmission operation
- Jerks when shifting gears
- Check Engine Light Illuminates
- Engine speed limit
- Transmission transition to emergency mode
Causes
- Open or short circuit in valve control circuit
- Pulley pressure solenoid valve malfunction
- Low or contaminated transmission fluid
- Transmission control module (TCM) problems
- Mechanical damage to the variator valve block
How to Fix
- Check the level and condition of the transmission fluid
- Diagnose the valve control circuit
- Check the resistance and operation of the solenoid valve
- Inspect the wiring harness for damage
- If necessary, replace the valve or valve block