C2421 Code - Motor Temperature Sensor Low Input
Quick Answer
The Electro Hydraulic Power Steering (EHPS) is assistance steering ability system uses an electrical motor that generates oil pressure not to use the Engine power. Common causes include Contamination of Oil/Clog of Oil path, Faulty Motor Pump Unit (MPU), Motor Pump Unit (MPU) harness is open or shorted. 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
- C2421 indicates Motor Temperature Sensor Low Input.
- Common causes
- Common causes include Contamination of Oil/Clog of Oil path, Faulty Motor Pump Unit (MPU), Motor Pump Unit (MPU) harness is open or shorted.
- 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.
Code C2421 Description
What are the Possible Causes of the DTC C2421?
- Contamination of Oil/Clog of Oil path
- Faulty Motor Pump Unit (MPU)
- Motor Pump Unit (MPU) harness is open or shorted
- Motor Pump Unit (MPU) circuit poor electrical connection
How to Fix the DTC C2421?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C2421 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C2421 code?
Need more information on how to fix the C2421 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C2421 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C2421 Hyundai — Motor Temperature Sensor Low Input
- C2421 KIA — Motor Temperature Sensor Low Input
- C2421 Subaru — Transmitter 1 Battery Voltage Decrease
Frequently Asked Questions about C2421 Code
1. What are the common symptoms of OBDII code C2421, Motor Temperature Sensor Low Input?
The common symptoms include engine overheating, poor engine performance, and potential stalling.
2. What can cause the OBDII code C2421, Motor Temperature Sensor Low Input?
Potential causes include a faulty motor temperature sensor, wiring issues, or a problem with the engine control module (ECM).
3. How can I diagnose the OBDII code C2421, Motor Temperature Sensor Low Input?
You can diagnose this code by using a scan tool to read the error codes, checking the motor temperature sensor for proper function, and inspecting the wiring for any damage or loose connections.
4. Can a faulty thermostat cause the OBDII code C2421, Motor Temperature Sensor Low Input?
While a faulty thermostat can contribute to engine overheating, it is not a direct cause of the Motor Temperature Sensor Low Input code.
5. What are the repair options for OBDII code C2421, Motor Temperature Sensor Low Input?
Repair options include replacing the motor temperature sensor, repairing any damaged wiring, and resetting the error code with a scan tool.
6. Can driving with OBDII code C2421, Motor Temperature Sensor Low Input cause further damage to the vehicle?
Continued driving with this code can potentially lead to engine damage due to overheating, so it is recommended to address the issue promptly.
7. Is it safe to clear the OBDII code C2421, Motor Temperature Sensor Low Input and continue driving?
Clearing the code without addressing the underlying issue is not recommended, as the problem may persist and cause further issues down the road.
8. How much does it typically cost to repair OBDII code C2421, Motor Temperature Sensor Low Input?
The cost of repair can vary depending on the specific cause of the issue, but it may involve replacing the motor temperature sensor or repairing the wiring, which can range from moderate to expensive.
9. Can I fix the OBDII code C2421, Motor Temperature Sensor Low Input myself?
If you have experience working on vehicles and access to the necessary tools, you may be able to diagnose and repair this code yourself. However, it is recommended to seek professional help if you are unsure.
10. How can I prevent OBDII code C2421, Motor Temperature Sensor Low Input from occurring in the future?
Regular maintenance, such as checking the cooling system and sensors, can help prevent issues that may trigger this code.
Discuss the causes and fixes for C2421 OBDII Code
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