P1816
Transmission Fluid Pressure Valve Position Switch-Park/Neutral With Drive Ratio
P1816 is an OBD-II diagnostic trouble code meaning: Transmission Fluid Pressure Valve Position Switch-Park/Neutral With Drive Ratio. Common causes: pressure valve position sensor malfunction, pressure valve stuck or worn. Estimated repair cost: $28–89.
Symptoms
- Incorrect automatic transmission gear shifting
- Slipping when shifting gears
- Hard or abrupt shifts
- Check Engine Light Is On
- The gearbox goes into emergency mode
Causes
- Pressure valve position sensor malfunction
- Pressure valve stuck or worn
- Low transmission fluid level
- Contaminated or old transmission fluid
- Problems in the sensor electrical circuit
How to Fix
- Check the level and condition of the transmission fluid
- Scan the transmission for additional error codes
- Check electrical connections and sensor circuit
- Replace pressure valve position sensor if necessary
- Flush the system and replace transmission fluid
Related codes
Error P1816 by Vehicle Brand
FAQ
What does the P1816 code mean?
P1816 is an OBD-II diagnostic trouble code that indicates: Transmission Fluid Pressure Valve Position Switch-Park/Neutral With Drive Ratio
What causes a P1816 error code?
The most common causes of P1816 include: Pressure valve position sensor malfunction; Pressure valve stuck or worn; Low transmission fluid level; Contaminated or old transmission fluid.
How do I fix a P1816 diagnostic trouble code?
To fix P1816: Check the level and condition of the transmission fluid. Scan the transmission for additional error codes. Check electrical connections and sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1816?
Limited driving only, diagnose soon
How much does it cost to fix P1816?
The estimated repair cost for P1816 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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