P0BC8 – Hybrid Battery Cooling Fan Range/Performance

P0BC8 Possible Causes

  • Faulty hybrid battery pack cooling fan
  • Hybrid battery cooling fan circuit open or shorted
  • Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BC8

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.

P0BC8 Possible Symptoms

Engine light on (or service engine soon warning light)

P0BC8 Meaning

The engine control module (ECM) monitors the hybrid battery cooling fan. The ECM sets the OBDII code when the hybrid battery cooling fan does not meet factory specifications.

P0BC9 – Low Hybrid Battery Cooling Fan Detection Circuit

P0BC9 Possible Causes

  • Faulty hybrid battery pack cooling fan
  • Hybrid battery cooling fan circuit open or shorted
  • Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BC9

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.

P0BC9 Possible Symptoms

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

P0BC9 Meaning

The engine control module (ECM) monitors the hybrid battery cooling fan. The ECM sets the OBDII code when the hybrid battery cooling fan does not meet factory specifications.

P0BCA – High Hybrid Battery Cooling Fan Detection Circuit

P0BCA Possible Causes

  • Hybrid battery pack cooling fan faulty
  • Hybrid battery cooling fan circuit open or shorted
  • Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BCA

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.

P0BCA Possible Symptoms

Engine light on (or service engine soon warning light)

P0BCA Meaning

The engine control module (ECM) monitors the hybrid battery cooling fan. The ECM sets the OBDII code when the hybrid battery cooling fan does not meet factory specifications.

P0BCB – Intermittent/Erratic Hybrid Battery Cooling Fan Detection Circuit

P0BCB Possible Causes

  • Faulty hybrid battery pack cooling fan
  • Hybrid battery cooling fan circuit open or shorted
  • Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BCB

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.

P0BCB Possible Symptoms

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

P0BCB Meaning

The engine control module (ECM) monitors the hybrid battery cooling fan. The ECM sets the OBDII code when the hybrid battery cooling fan does not meet factory specifications.

P0BCC – Generator Inverter Temperature Sensor Circuit

P0BCC Possible Causes

  • Inverter cooling system
  • Cooling fan system
  • Inverter with converter
  • Inverter water pump assembly

What Does It Mean?

How to Fix P0BCC 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 connector pins.

P0BCC Possible Symptoms

Engine light on (or service engine soon warning light)

P0BCC Meaning

The MG ECU located in the inverter with converter assembly detects the generator inverter temperature using the temperature sensor integrated in the generator inverter. If necessary, the MG ECU will limit the inverter output to prevent overheating of the generator inverter. The Power Management Control ECU (HV CPU) also detects sensor malfunctions based on temperature sensor values. The inverter with converter converts malfunctions of the generator inverter temperature sensor and its wiring.

P0BCD – Generator Inverter Temperature Sensor Circuit Range/Performance

P0BCD Possible Causes

  • Inverter cooling system
  • Cooling fan system
  • Inverter with converter
  • Inverter water pump assembly

What Does It Mean?

How to Fix P0BCD 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 connector pins.

P0BCD Possible Symptoms

Engine light on (or service engine soon warning light)

P0BCD Meaning

The MG ECU located in the inverter with converter assembly detects the generator inverter temperature using the temperature sensor integrated into the generator inverter. If necessary, the MG ECU will limit the inverter output to prevent overheating of the generator inverter. The Power Management Control ECU (HV CPU) also detects sensor malfunctions based on temperature sensor values. The inverter with converter converts malfunctions of the generator inverter temperature sensor and its wiring.

P0BCE – Generator Inverter Low Temperature Sensor Circuit

P0BCE Possible Causes

  • Inverter with converter

What does it mean?

How to fix code P0BCE

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

P0BCE Possible Symptoms

Engine light on (or service engine soon warning light)

P0BCE Meaning

The MG ECU located in the inverter with converter assembly detects the generator inverter temperature using the temperature sensor integrated into the generator inverter. If necessary, the MG ECU will limit the inverter output to prevent overheating of the generator inverter. The Power Management Control ECU (HV CPU) also detects sensor malfunctions based on temperature sensor values. The inverter with converter converts malfunctions of the generator inverter temperature sensor and its wiring.

P0BCF – High Generator Inverter Temperature Sensor Circuit

P0BCF Possible Causes

  • Inverter with converter

What does it mean?

How to fix P0BCF code

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

P0BCF Possible Symptoms

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

P0BCF Meaning

The MG ECU located in the inverter with converter assembly detects the generator inverter temperature using the temperature sensor integrated into the generator inverter. If necessary, the MG ECU will limit the inverter output to prevent overheating of the generator inverter. The Power Management Control ECU (HV CPU) also detects sensor malfunctions based on temperature sensor values. The inverter with converter converts malfunctions of the generator inverter temperature sensor and its wiring.

P0BD0 – Intermittent/Erratic Generator Inverter Temperature Sensor Circuit

P0BD0 Possible Causes

  • Inverter cooling system
  • Cooling fan system
  • Inverter with converter
  • Inverter water pump assembly

What does it mean?

How to fix P0BD0 code

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.

P0BD0 Possible Symptoms

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

P0BD0 Meaning

The MG ECU located in the inverter with converter assembly detects the generator inverter temperature using the temperature sensor integrated in the generator inverter. If necessary, the MG ECU will limit the inverter output to prevent overheating of the generator inverter. The Power Management Control ECU (HV CPU) also detects sensor malfunctions based on temperature sensor values. The inverter with converter converts malfunctions of the generator inverter temperature sensor and its wiring.

P0BD1 – Drive Motor Inverter Temperature Sensor “C” Circuit

P0BD1 Possible Causes

  • Faulty inverter with converter assembly
  • Inverter with converter assembly harness open or short-circuited
  • Inverter with converter assembly circuit poor electrical connection
  • Faulty HV control ECU

What Does It Mean?

How to Fix P0BD1 Code

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

P0BD1 Possible Symptoms

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

P0BD1 Meaning

The HV control ECU uses a temperature sensor integrated into the inverter to detect the motor inverter temperature. The same cooling system routed to MG1 and MG2 cools the inverter. This cooling system is independent of the engine cooling system.
The motor inverter temperature sensor characteristic is the same as the boost converter temperature sensor.
The HV control ECU limits the load based on signals from the motor inverter temperature sensor to verify the inverter cooling system efficiency and prevent the inverter from overheating. Additionally, the HV control ECU detects malfunctions in the motor drive temperature sensor wiring as well as in the sensor itself.