P1018 Dodge Code - MAP Circuit HighReductant Control Module Sensor Communication Voltage Supply Circuit Low Voltage
Quick Answer
The P1018 diagnostic trouble code (DTC) for Dodge vehicles refers to an issue with the MAP (Manifold Absolute Pressure) circuit high reductant control module sensor communication voltage supply circuit low voltage. Common causes include Faulty MAP sensor, Wiring or connector issues, Defective reductant control module. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1018 Dodge indicates MAP Circuit HighReductant Control Module Sensor Communication Voltage Supply Circuit Low Voltage.
- Common causes
- Common causes include Faulty MAP sensor, Wiring or connector issues, Defective reductant control module.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P1018 Dodge Description
The P1018 diagnostic trouble code (DTC) for Dodge vehicles refers to an issue with the MAP (Manifold Absolute Pressure) circuit high reductant control module sensor communication voltage supply circuit low voltage. In simpler terms, this code indicates that there is a problem with the communication between the MAP sensor and the reductant control module due to low voltage supply. The MAP sensor is a crucial component that measures the pressure inside the intake manifold, helping the engine control module (ECM) determine the correct air-fuel mixture for optimal performance.
Common Causes of P1018 Dodge
- Faulty MAP sensor
- Wiring or connector issues
- Defective reductant control module
- Low voltage supply to the sensor
- ECM malfunction
Symptoms of P1018 Dodge
- Decreased fuel efficiency
- Rough idling or engine misfires
- Engine stalling or hesitation
- Check Engine Light illuminated
- Reduced overall engine performance
How to Fix P1018 Dodge
- Begin by conducting a thorough diagnostic scan using an OBD-II scanner to confirm the P1018 code and identify the specific cause of the issue.
- Inspect the wiring and connectors related to the MAP sensor and reductant control module for any signs of damage or corrosion. Repair or replace as necessary.
- Test the voltage supply to the MAP sensor and ensure it meets the manufacturer's specifications. Repair any issues with the voltage supply circuit.
- If the MAP sensor is found to be faulty, replace it with a new, high-quality sensor that meets OEM standards.
- Clear the DTC and reset the ECM to see if the issue has been resolved. Test drive the vehicle to confirm that the symptoms associated with the code have been eliminated.
Cost to Fix P1018 Dodge
The cost of repairing a P1018 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing a MAP sensor can cost between $100 and $200, while addressing wiring or connector issues may range from $50 to $150. If a reductant control module needs to be replaced, this can add an additional $200 to $500 to the total repair cost. Labor rates typically range from $80 to $150 per hour, so the total cost can vary significantly based on the extent of the repairs needed. It is advisable to contact local auto repair shops for a more accurate estimate based on your vehicle make and model.
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