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P1473 – OBD-II DTC

OBD-II DTC P1473 – SSPOD Open Circuit or Closed Circuit Fault

DTC P1473 meaning

DTC P1473 refers to a diagnostic trouble code indicating an issue with the SSPOD (Supercharger System Pressure Over-Pressure Device) in a vehicle’s engine management system. This code is triggered when the system detects an open circuit or a closed circuit fault within the SSPOD circuit. The SSPOD is responsible for monitoring and regulating the pressure in the supercharger system, ensuring optimal performance and preventing damage to the engine.

DTC P1473 symptoms

Common symptoms associated with DTC P1473 may include:

  • Illumination of the Check Engine Light (CEL)
  • Reduced engine performance or power
  • Unusual engine noises, particularly under acceleration
  • Increased fuel consumption
  • Possible overheating of the engine

DTC P1473 causes

Several factors can lead to the triggering of DTC P1473, including:

  • Faulty SSPOD sensor or component
  • Wiring issues, such as damaged or corroded connectors
  • Short circuits in the SSPOD circuit
  • Faulty engine control module (ECM) or software issues
  • Vacuum leaks in the supercharger system

DTC P1473 seriousness

The seriousness of DTC P1473 can vary based on the underlying issue. While it may not cause immediate catastrophic failure, it can lead to:

  • Decreased engine efficiency
  • Potential engine damage if left unaddressed
  • Increased emissions
  • Failure to pass emissions testing

It is advisable to address this code promptly to maintain vehicle performance and reliability.

How to diagnose DTC P1473

To diagnose DTC P1473, follow these steps:

  1. Use an OBD-II scanner to confirm the presence of the P1473 code.
  2. Inspect the SSPOD wiring and connectors for any visible damage or corrosion.
  3. Check for any additional trouble codes that may provide more context.
  4. Test the SSPOD sensor using a multimeter to ensure it is functioning within specifications.
  5. Examine the supercharger system for vacuum leaks or other issues.
  6. Consult the vehicle’s service manual for specific testing procedures related to the SSPOD.

How to fix DTC P1473 step-by-step instructions

To fix DTC P1473, follow these step-by-step instructions:

  1. Clear the DTC using an OBD-II scanner.
  2. Inspect and repair any damaged wiring or connectors related to the SSPOD.
  3. Replace the SSPOD sensor if it is found to be faulty.
  4. Address any vacuum leaks in the supercharger system.
  5. Recheck the system for proper operation after repairs.
  6. Perform a test drive to ensure the code does not reappear.

How to erase DTC P1473

To erase DTC P1473, 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 “Erase Codes” or “Clear DTCs” option on the scanner.
  4. Confirm the action to clear the trouble codes.
  5. Disconnect the scanner and start the engine to verify that the code does not return.

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