Error code
OBD2 P0933
What it means
Hydraulic Pressure Sensor Range/Performance.
Severity
Summary
P0933 indicates that the hydraulic pressure sensor in your transmission is not performing as expected, which can affect gear shifting quality and overall drivability.
Symptoms
- Malfunction Indicator Light (MIL) illuminated
- Harsh or delayed shifting
- Poor acceleration
Common Causes
- Faulty hydraulic pressure sensor
- Wiring issues in the hydraulic pressure sensor circuit
- Over-sensitive ECM rejecting minor variations in signal voltage
Diagnosis
- Check for TSBs (Technical Service Bulletins) related to P0933
- Inspect wiring harnesses for damage or water entry
- Verify proper voltage and ground at the hydraulic pressure sensor connector
- Perform circuit checks with key OFF and ECM/LPS disconnected
Fixes
- Replace faulty hydraulic pressure sensor
- Repair wiring issues in the hydraulic pressure sensor circuit
FAQ
What should I do if my car's MIL is on and P0933 is set?
You should perform a thorough inspection of the hydraulic pressure sensor and its wiring. If issues are found, repair or replace them as necessary.
Can an ECM update fix P0933?
In some cases, an ECM software update can relax specifications enough to ignore minor variations in signal voltage, potentially resolving the issue without hardware replacement.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0900Clutch Actuator Circuit/Open
- P0901Clutch Actuator Circuit Range/Performance
- P0902Clutch Actuator Circuit Low
- P0903Clutch Actuator Circuit High
- P0904Gate Select Position Circuit
- P0905Gate Select Position Circuit Range/Performance
- P0906Gate Select Position Circuit Low
- P0907Gate Select Position Circuit High
- P0908Gate Select Position Circuit Intermittent
- P0909Gate Select Control Error
- P0910Gate Select Actuator Circuit/Open
- P0911Gate Select Actuator Circuit Range/Performance