P202C Ford Code - Reductant Tank Heater Control Circuit High
Quick Answer
The P202C diagnostic trouble code (DTC) for Ford vehicles refers to the Reductant Tank Heater Control Circuit High. Common causes include Faulty Reductant Tank Heater: The heater itself may be malfunctioning and causing the control circuit to read high, Wiring Issues: Damaged or corroded wiring harnesses or connectors can disrupt the flow of electrical signals to the reductant tank heater, Defective Control Module: The control module that regulates the reductant tank heater may be faulty, leading to incorrect temperature readings. 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
- P202C Ford indicates Reductant Tank Heater Control Circuit High.
- Common causes
- Common causes include Faulty Reductant Tank Heater: The heater itself may be malfunctioning and causing the control circuit to read high, Wiring Issues: Damaged or corroded wiring harnesses or connectors can disrupt the flow of electrical signals to the reductant tank heater, Defective Control Module: The control module that regulates the reductant tank heater may be faulty, leading to incorrect temperature readings.
- 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 P202C Ford Description
The P202C diagnostic trouble code (DTC) for Ford vehicles refers to the Reductant Tank Heater Control Circuit High. This code indicates that there is an issue with the control circuit for the reductant tank heater, which is responsible for maintaining the correct temperature of the diesel exhaust fluid (DEF) in the reductant tank. The reductant tank heater is crucial for the proper functioning of the selective catalytic reduction (SCR) system, which reduces harmful emissions in diesel engines.
Common Causes of P202C Ford
- Faulty Reductant Tank Heater: The heater itself may be malfunctioning and causing the control circuit to read high.
- Wiring Issues: Damaged or corroded wiring harnesses or connectors can disrupt the flow of electrical signals to the reductant tank heater.
- Defective Control Module: The control module that regulates the reductant tank heater may be faulty, leading to incorrect temperature readings.
- Software Glitch: An issue with the vehicle's onboard computer software could cause the control circuit to malfunction and trigger the P202C code.
Symptoms of P202C Ford
- Check Engine Light: The most common symptom associated with the P202C code is the illumination of the check engine light on the vehicle's dashboard.
- Reduced Engine Performance: The vehicle may experience a decrease in engine power and responsiveness due to the SCR system not functioning optimally.
- Poor Fuel Efficiency: A malfunctioning reductant tank heater can lead to increased fuel consumption as the engine compensates for the higher emissions output.
- Failed Emissions Test: If the issue is not addressed, the vehicle may fail emissions tests due to elevated emissions levels.
- Strange Smells: In some cases, drivers may notice unusual smells coming from the exhaust due to incomplete combustion of emissions.
How to Fix P202C Ford
- Diagnose the Issue: Use an OBD-II scanner to read and record the P202C code, then perform a thorough inspection of the reductant tank heater system to identify the root cause of the problem.
- Test the Reductant Tank Heater: Check the resistance and voltage of the reductant tank heater to determine if it is functioning within the manufacturer's specifications.
- Inspect Wiring and Connectors: Examine the wiring harnesses and connectors for any signs of damage or corrosion and repair or replace as necessary.
- Replace Reductant Tank Heater: If the heater is determined to be faulty, replace it with a new unit to ensure proper heating of the DEF in the reductant tank.
- Clear Codes and Test Drive: After completing the repair, clear the DTC codes from the vehicle's computer and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P202C Ford
The typical repair costs for addressing the P202C DTC on a Ford vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower prices. It is recommended to obtain quotes from local shops to get a more accurate estimate for the repair.
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