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AutoCodes - Generic - P04A9

P04A9 Code - Exhaust Pressure Control Valve 'B' Position Sensor/Switch Circuit High

- Code Popularity: 1,650 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P04A9?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Exhaust Pressure Control Valve 'B' Position Sensor/Switch
  • Exhaust Pressure Control Valve 'B' Position Sensor/Switch harness is open or shorted
  • Exhaust Pressure Control Valve 'B' Position Sensor/Switch circuit poor electrical connection
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How to Fix the DTC P04A9?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P04A9 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P04A9 Description

The Powertrain Control Module (PCM) monitors the Exhaust Pressure Control Valve Position Sensor. The PCM sets the OBDII code when the Exhaust Pressure Control Valve Position Sensor is not to factory specifications.

OBDII Code P04A9 - Exhaust Pressure Control Valve 'B' Position Sensor/Switch Circuit High - AutoCodes.com
P04A9 Code - Exhaust Pressure Control Valve 'B' Position Sensor/Switch Circuit High

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Code P04A9 comments

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