P0C50 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor wiring harness is open or short-circuited
• Poor electrical connection of the hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C50

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C50 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0C50 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the sensor rotor position.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time period to use the resolver as a speed sensor.

P0C51 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor wiring harness is open or short-circuited
• Poor electrical connection in the hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C51

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

P0C51 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0C51 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the position of the sensor rotor.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time period, in order to use the resolver as a speed sensor.

P0C52 Possible Causes

• Faulty drive motor generator
• Drive motor harness is open or shorted
• Poor electrical connection in drive motor generator circuit

What Does It Mean?

How to Fix Code P0C52

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P0C52 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C52 Meaning

The drive motor position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed, and direction of the drive motor generator rotor based on signals from the resolver-type position sensor. The position sensor contains one drive coil, two driven coils, and an irregularly shaped metal rotor. The metal rotor is mechanically attached to the drive motor-generator shaft. When the vehicle is turned on, the motor control module sends a 7 volt AC, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregularly shaped rotor. The motor control module then monitors the two driven coil circuits for a return signal. The position of the irregular metal rotor causes the magnetically induced return signals from the driven coils to vary in size and shape. Comparing the two signals from the driven coils allows the motor control module to determine the exact position, speed, and direction of the drive motor-generator rotor. The position sensor is a non-repairable part of the drive motor.

P0C53 Possible Causes

• Faulty drive motor generator
• Drive motor harness is open or shorted
• Poor electrical connection in drive motor generator circuit

What Does It Mean?

How to Fix Code P0C53

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P0C53 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C53 Meaning

The drive motor position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed, and direction of the drive motor generator rotor based on signals from the resolver-type position sensor. The position sensor contains one drive coil, two driven coils, and an irregularly shaped metal rotor. The metal rotor is mechanically attached to the drive motor-generator shaft. When the vehicle is turned on, the motor control module sends a 7V AC, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregularly shaped rotor. The motor control module then monitors the two driven coil circuits for a return signal. The position of the irregular metal rotor causes the magnetically induced return signals from the driven coils to vary in size and shape. Comparing the two signals from the driven coils allows the motor control module to determine the exact position, speed, and direction of the drive motor-generator rotor. The position sensor is a non-repairable part of the drive motor.

P0C54 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor wiring harness is open or short-circuited
• Poor electrical connection of the hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C54

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C54 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C54 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the position of the sensor rotor.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time, in order to use the resolver as a speed sensor.

P0C55 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor harness is open or shorted
• Poor electrical connection of hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C55

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 connector pins.

P0C55 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0C55 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the sensor rotor position.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time period, in order to use the resolver as a speed sensor.

P0C56 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor wiring harness is open or short-circuited
• Poor electrical connection in the hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C56

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C56 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C56 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the position of the sensor rotor.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time, to use the resolver as a speed sensor.

P0C57 Possible Causes

• Faulty drive motor generator
• Drive motor harness is open or shorted
• Poor electrical connection in drive motor generator circuit

What Does It Mean?

How to Fix Code P0C57

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P0C57 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C57 Meaning

The drive motor generator position sensor is monitored by the motor control module. The motor control module monitors the angular position, speed, and direction of the drive motor generator rotor based on signals from the resolver-type position sensor. The position sensor contains one exciter coil, two sensing coils, and an irregularly shaped metal rotor. The metal rotor is mechanically attached to the drive motor-generator shaft. When the vehicle is turned on, the motor control module sends a 7V AC, 10 kHz excitation signal to the exciter coil. The exciter coil’s signal creates a magnetic field around the two sensing coils and the irregularly shaped rotor. The motor control module then monitors the two sensing coil circuits for a return signal. The position of the irregular metal rotor causes the magnetically induced return signals from the sensing coils to vary in size and shape. Comparing the two signals from the sensing coils allows the motor control module to determine the exact position, speed, and direction of the drive motor-generator rotor. The position sensor is a non-repairable part of the drive motor generator.

P0C58 Possible Causes

• Faulty drive motor generator
• Drive motor harness is open or shorted
• Poor electrical connection in the drive motor generator circuit

What Does It Mean?

How to Fix Code P0C58

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P0C58 Possible Symptoms

Engine light on (or service engine soon warning light)

P0C58 Meaning

The drive motor generator position sensor is monitored by the engine control module. The engine control module monitors the angular position, speed, and direction of the drive motor generator rotor based on signals from the resolver-type position sensor. The position sensor contains a drive coil, two driven coils, and an irregularly shaped metal rotor. The metal rotor is mechanically attached to the drive motor-generator shaft. When the vehicle is turned on, the engine control module sends a 7V AC, 10 kHz excitation signal to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregularly shaped rotor. The engine control module then monitors the two driven coil circuits for a return signal. The position of the irregular metal rotor causes the magnetically induced return signals from the driven coils to vary in size and shape. A comparison of the two signals from the driven coils allows the engine control module to determine the exact position, speed, and direction of the drive motor-generator rotor. The position sensor is a non-repairable part of the drive motor generator.

P0C59 Possible Causes

• Faulty hybrid vehicle motor
• Hybrid vehicle motor wiring harness is open or short-circuited
• Poor electrical connection in the hybrid vehicle motor circuit
• Faulty HV control ECU

What Does It Mean?

How to Fix Code P0C59

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

P0C59 Possible Symptoms

Check engine light on (or service engine soon warning light)

P0C59 Meaning

The motor resolver is a type of sensor that detects the position of magnetic poles, essential for ensuring highly efficient control of MG1 and MG2.
The resolver stator contains an excitation coil and two detection coils. Because the rotor has an oval shape, the gap between the stator and rotor changes as the rotor rotates. An alternating current with a predetermined frequency flows through the excitation coil, and the S and C detection coils produce alternating currents according to the position of the sensor rotor.
The HV control ECU detects the absolute position of the rotor based on the phases of the S and C detection coils and the height of their waveform. Additionally, the CPU calculates the amount of position change within a predetermined time period, in order to use the resolver as a speed sensor.