P0473 OBD-II: Exhaust Pressure Sensor "A" Circuit High
P0473 Severity
Will P0473 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0473?
The Exhaust Pressure Sensor tells the engine control module (PCM) how much pressure is in the exhaust manifold. If the PCM determines there is an incorrect signal from the Exhaust Pressure Sensor, the PCM will set code P0473.
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What Does P0473 Code Mean?
OBD-II Code P0473 is defined as a Exhaust Pressure Sensor "A" Circuit High
The Exhaust Pressure Sensor tells the engine control module (PCM) how much pressure is in the exhaust manifold. If the PCM determines there is an incorrect signal from the Exhaust Pressure Sensor, the PCM will set code P0473.
Common Problems That Trigger the P0473 Code
- Exhaust pressure sensor failure
- Powertrain Control Module (PCM) failure
- Wiring issue
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