P3045
DCT Hydraulic Pump Pressure Low
2007-2012 Mazda CX-7 2.5L I4
Critical SeverityPowertrainGeneric (SAE)
Description
The DCT hydraulic pump is not generating sufficient pressure for clutch actuation and gear selection.
Symptoms
- Check Engine Light
- Slow gear changes
- Clutch slip during shifts
- No drive in any gear
- Transmission warning light
- Creep function loss in stop-and-go
Common Causes
- Worn hydraulic pump
- Low hydraulic fluid level
- Internal seal leak
- Pressure accumulator failure
- Clogged hydraulic filter
Diagnostic Steps
- Check hydraulic fluid level
- Read system pressure PID
- Test pump motor operation
- Inspect accumulator charge pressure
- Check for external fluid leaks
Repair Notes
Replace hydraulic pump or repair internal leaks. Replace accumulator if pressure does not hold.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3045 on Other Vehicles
Common Questions
What does code P3045 mean on a 2007-2012 Mazda CX-7?
P3045 stands for "DCT Hydraulic Pump Pressure Low". The DCT hydraulic pump is not generating sufficient pressure for clutch actuation and gear selection.
What are the symptoms of P3045 on a Mazda CX-7?
Common symptoms of P3045 include: Check Engine Light, Slow gear changes, Clutch slip during shifts, No drive in any gear, Transmission warning light, Creep function loss in stop-and-go.
What causes P3045 on a 2007-2012 Mazda CX-7?
Common causes of P3045 include: Worn hydraulic pump, Low hydraulic fluid level, Internal seal leak, Pressure accumulator failure, Clogged hydraulic filter.