Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that the part that helps control the car's exhaust system is not working right. It's like a switch that isn't turning off when it should.
The EGR (Exhaust Gas Recirculation) system is responsible for reducing emissions by recirculating a portion of the exhaust gases back into the engine cylinders. The 'Positioner Circuit High' indicates that the voltage in the EGR positioner circuit is higher than expected.
The P1212 code is triggered when the Powertrain Control Module (PCM) detects a high voltage signal from the EGR position sensor. This sensor is used to monitor the position of the EGR valve to ensure it is operating correctly. A high voltage signal may indicate a short circuit or an open circuit in the wiring or a malfunctioning EGR valve.
• Check Engine Light is on
• Poor engine performance
• Increased emissions
• Faulty EGR valve
• Wiring issues in the EGR circuit
• Defective EGR position sensor
EGR: Exhaust Gas Recirculation
PCM: Powertrain Control Module
• Use an OBD-II scanner to verify the code.
• Inspect the EGR valve and wiring for damage.
• Test the EGR position sensor for proper operation.
• Replace the faulty EGR valve.
• Repair or replace damaged wiring.
• Replace the EGR position sensor if defective.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular maintenance of the EGR system
• Timely replacement of faulty components
• Inspection of wiring and connectors
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Avoid prolonged driving with this issue.
Check your vehicle's warranty for coverage on emissions-related components.
The P1212 code has been associated with EGR system issues in vehicles since the introduction of OBD-II systems in the mid-1990s.
Moderate – Addressing this issue promptly can prevent further engine performance issues.
Driving with a malfunctioning EGR system can lead to increased emissions, which may be illegal in some regions.
• Engine at operating temperature
• Idle and part-throttle conditions
The EGR valve is typically located on the engine intake manifold.
Q: Can I drive with a P1212 code?
A: It's not recommended to drive for long periods with this code, as it can affect engine performance and emissions.
Q: How can I reset the Check Engine Light?
A: After repairs, you can reset the light using an OBD-II scanner, or it may turn off automatically after several drive cycles.
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