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P0CBF Code - Drive Motor Coolant Temperature Sensor Circuit High Voltage

- Code Popularity: 3,387 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0CBF?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Starter/Generator Coolant Temperature Sensor
  • Starter/Generator Coolant Temperature Sensor harness is open or shorted
  • Starter/Generator Coolant Temperature Sensor circuit poor electrical connection
  • Faulty Starter/Generator Control Module
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How to Fix the DTC P0CBF?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0CBF code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0CBF Description

The hybrid electronics coolant temperature sensor is a variable resistor that measures the temperature of the starter/generator coolant. The Starter/Generator Control Module supplies 5 V to the signal circuit and a ground for the low reference circuit. The hybrid electronics coolant temperature sensor resistance changes with starter/generator coolant temperature. As the temperature decreases, the sensor resistance increases. As the temperature increases, the sensor resistance decreases. The Starter/Generator Control Module monitors the hybrid electronics coolant temperature sensor to determine the temperature of the starter/generator coolant. As the coolant temperature changes, the Starter/Generator Control Module will turn the Starter/Generator Control Module coolant pump ON or OFF to accommodate the starter/generator cooling requirements.
The Starter/Generator Control Module performs a rationality diagnostic that compares the hybrid electronics coolant temperature sensor signal to the average temperature of the starter/generator stator, engine intake air temperature, and transmission fluid temperature. This diagnostic gets one chance to run during a drive cycle after a specific vehicle OFF time.

OBDII Code P0CBF - Drive Motor Coolant Temperature Sensor Circuit High Voltage - AutoCodes.com
P0CBF Code - Drive Motor Coolant Temperature Sensor Circuit High Voltage

Need More Information on the Code?

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Information for Specific Makes

  • P0CBF Buick Drive Motor Coolant Temperature Sensor Circuit High Voltage
  • P0CBF Cadillac Drive Motor Coolant Temperature Sensor Circuit High Voltage
  • P0CBF Chevrolet Drive Motor Coolant Temperature Sensor Circuit High Voltage
  • P0CBF GMC Drive Motor Coolant Temperature Sensor Circuit High Voltage

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Code P0CBF comments

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