Mazda DTC P1749 – Electronic Pressure Control Solenoid Circuit Low
DTC P1749 meaning on Mazda
DTC P1749 on a Mazda indicates a fault with the Electronic Pressure Control (EPC) solenoid circuit. This code is triggered when the Powertrain Control Module (PCM) detects a low voltage condition in the EPC solenoid circuit.
Mazda DTC P1749 symptoms
Symptoms of DTC P1749 on a Mazda may include:
- Harsh shifting
- Transmission slipping
- Transmission overheating
- Decreased fuel efficiency
Mazda DTC P1749 causes
Common causes of DTC P1749 on a Mazda include:
- Faulty EPC solenoid
- Wiring issues in the EPC solenoid circuit
- Corrosion or poor connections in the circuit
- PCM software issues
Mazda DTC P1749 seriousness
DTC P1749 should be addressed promptly as it can lead to transmission performance issues and potential damage if left unresolved.
How to diagnose DTC P1749 on Mazda
To diagnose DTC P1749 on a Mazda, a mechanic should:
- Perform a visual inspection of the EPC solenoid and its wiring
- Use a scan tool to check for the presence of the code
- Test the EPC solenoid for proper operation
- Check the wiring harness for continuity and shorts
How to fix DTC P1749 on Mazda
To fix DTC P1749 on a Mazda, the following steps can be taken:
- Replace the faulty EPC solenoid
- Repair any damaged wiring in the EPC solenoid circuit
- Clean or replace corroded connectors
- Update the PCM software if necessary
How to erase DTC P1749 on Mazda
To erase DTC P1749 on a Mazda, the code can be cleared using a scan tool that has the capability to reset fault codes. Once the issue has been addressed and fixed, the code can be cleared to reset the system.
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