C2421 - Motor Temperature Sensor Low Input

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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C2421 Possible Causes

  • 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

First diagnose C2421 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the C2421 code

    Labor: 1.0

    The cost of diagnosing the C2421 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

C2421 Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C2421 Description

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. The Temperature Sensor is installed in the Motor Pump Unit (MPU) in order to measure oil temperature, This sensor uses a thermistor whose resistance changes according to the temperature changes. The MPU ECU perform limit current control to prevent from over-heating and motor speed control according to viscosity changes. The MPU set this code If the input value from the temperature sensor is too low and not control EHPS.
OBDII Code C2421 - Motor Temperature Sensor Low Input - AutoCodes.com

C2421 More Information

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