C1464 – OBD-II DTC

OBD-II DTC C1464 – Pressure Transducer Redundant / Secondary Signal Faulted

DTC C1464 meaning

DTC C1464 refers to a fault in the pressure transducer’s redundant or secondary signal. This code indicates that the vehicle’s onboard diagnostic system has detected an issue with the secondary signal from the pressure transducer, which is responsible for monitoring pressure levels in various systems, such as the fuel or hydraulic systems. The redundancy is designed to ensure reliability, and a fault in this signal can lead to performance issues or system failures.

DTC C1464 symptoms

Common symptoms associated with DTC C1464 may include:

• Illumination of the check engine light
• Decreased engine performance
• Increased fuel consumption
• Erratic or unstable pressure readings
• Potential stalling or hesitation during acceleration

DTC C1464 causes

The causes of DTC C1464 can vary, but typical reasons include:

• Faulty pressure transducer
• Wiring issues, such as shorts or open circuits
• Corroded or loose electrical connections
• Software glitches in the vehicle’s ECU
• Contamination or damage to the pressure transducer

DTC C1464 seriousness

DTC C1464 is considered a moderate to serious issue. While it may not cause immediate catastrophic failure, it can lead to significant performance problems and may affect the vehicle’s drivability. Ignoring this code can result in further damage to the engine or related systems, potentially leading to costly repairs.

How to diagnose DTC C1464

To diagnose DTC C1464, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the wiring and connectors associated with the pressure transducer for damage or corrosion.
4. Test the pressure transducer using a multimeter to ensure it is functioning correctly.
5. Check the vehicle’s ECU for software updates or known issues.

How to fix DTC C1464 step-by-step instructions

To fix DTC C1464, follow these steps:

1. Address any wiring issues by repairing or replacing damaged wires and connectors.
2. If the pressure transducer is faulty, replace it with a new unit.
3. Clear any corrosion from electrical connections and ensure they are secure.
4. Reprogram or update the vehicle’s ECU if necessary.
5. After repairs, use the OBD-II scanner to clear the DTC and test drive the vehicle to ensure the issue is resolved.

How to erase DTC C1464

To erase DTC C1464, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the trouble codes section of the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.
6. Disconnect the scanner and start the vehicle to ensure the check engine light does not reappear.

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