The P0942 DTC is usually found in vehicles made by either the Chrysler Corporation or Volkswagen. However, a few other automakers have been known to use it. What this OBDII trouble code means is, there is a significant issue with the transmission pump that creates the hydraulic pressure needed to operate the transmission, and ultimately the drive wheels.
How Serious is the Code?
The P0942 diagnostic trouble code is actually pretty serious, because the transmission must have proper hydraulic pressure in order to operate correctly. If it does not, you could be facing a massive repair bill.
Symptoms of a P0942 include:
- Delayed shifts
- Transmission refuses to shift
- Low or dirty transmission fluid
- Blocked or loose transmission cooler lines/filter
- Failed transmission pump
- Fluid blockage inside of the transmission/valve body
- Transmission pressure regulator valve is stuck
How to Diagnose the Code?
Diagnosing a P0942 OBDII trouble code generally involves performing a transmission line pressure test to see if the transmission pump is performing properly. Transmission leaks will need to be addressed, and the condition of the transmission fluid will need to be checked to see if there’s any signs of internal damage.
What Repairs Will Fix P0942?
- Change transmission fluid
- Flush transmission
- Replace transmission cooler lines filter
- Replace transmission pump
- Replace transmission regulator valve
- Replace, rebuild or install remanufactured transmission