P04A9 - Exhaust Pressure Control Valve 'B' Position Sensor/Switch Circuit High
P04A9 Possible 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
How do I fix code P04A9?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P04A9 code
Labor: 1.0The cost of diagnosing the P04A9 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
- Engine Light ON (or Service Engine Soon Warning Light)
P04a9 DescriptionThe 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.
P04A9 More InformationNeed more information on how to fix the P04A9 code?
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Need more help?Get the P04a9 code diagnosed by a professional: Find a repair shop in your area
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