P0AF2 – Drive Motor ‘B’ Inverter Temperature Sensor Circuit

P0AF2 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 Code P0AF2

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.

P0AF2 Possible Symptoms

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

P0AF2 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.

P0AF3 – Drive Motor Inverter Temperature Sensor Circuit Range / Performance

P0AF3 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 P0AF3 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.

P0AF3 Possible Symptoms

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

P0AF3 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.

P0AF4 – Drive Motor Inverter Temperature Sensor B Circuit Low

P0AF4 Possible Causes

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

What Does It Mean?

How to Fix Code P0AF4

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.

P0AF4 Possible Symptoms

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

P0AF4 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 a malfunction in the motor drive temperature sensor wiring, as well as in the sensor itself.

P0AF5 – Drive Motor Inverter Temperature Sensor B Circuit

P0AF5 Possible Causes

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

What Does It Mean?

How to Fix Code P0AF5

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.

P0AF5 Possible Symptoms

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

P0AF5 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 and in the sensor itself.

P0AF6 – Intermittent/Erratic Circuit of Drive Motor Inverter Temperature Sensor

P0AF6 Possible Causes

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

What Does It Mean?

How to Fix Code P0AF6

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.

P0AF6 Possible Symptoms

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

P0AF6 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 and in the sensor itself.

P0AF7 – Internal temperature of the 14-volt power supply module too high

P0AF7 Possible Causes

  • Faulty 14-volt power supply module
  • 14-volt power supply module harness is open or short-circuited
  • Poor electrical connection in the 14-volt power supply module circuit

What Does It Mean?

How to Fix Code P0AF7

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

P0AF7 Possible Symptoms

Engine light on (or service engine soon warning light)

P0AF7 Meaning

The Engine Control Module (ECM) monitors the internal temperature of the 14-volt power supply module. The ECM sets the OBDII code when the internal temperature of the 14-volt power supply module does not meet factory specifications.

P0AF8 – Hybrid Battery System Voltage

P0AF8 Possible Causes

  • Open 36-volt battery cable
  • Open hybrid battery pack fuse
  • Open hybrid battery contactor
  • Hybrid battery pack ground cable or connection

What Does It Mean?

How to Fix Code P0AF8

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.

P0AF8 Possible Symptoms

Engine light on (or service engine soon warning light)

P0AF8 Meaning

The Engine Control Module (ECM) monitors the correlation between the battery disconnect control module battery voltage and the starter generator control module (SGCM) output voltage to detect a 36-volt cable open or fuse/relay failure. The ECM also monitors for overvoltage conditions and protects the MOSFET (charge discharge). If any of these conditions are detected, the appropriate Diagnostic Trouble Code (DTC) is set.

P0AF9 – Unstable Hybrid Battery System Voltage

P0AF9 Possible Causes

  • 36-volt battery cable open
  • Hybrid battery pack fuse open
  • Hybrid battery contactor open
  • Hybrid battery pack ground cable or connection

What Does It Mean?

How to Fix Code P0AF9

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.

P0AF9 Possible Symptoms

Engine light on (or service engine soon warning light)

P0AF9 Meaning

The Engine Control Module (ECM) monitors the correlation between the battery disconnect control module battery voltage and the starter generator control module (SGCM) output voltage to detect a 36-volt cable open or fuse/relay failure. The ECM also monitors for overvoltage conditions and protects the MOSFET (charge discharge). If any of these conditions are detected, the appropriate diagnostic trouble code (DTC) is set.

P0AFA – Hybrid Battery System Voltage Low

P0AFA Possible Causes

  • Open 36-volt battery cable
  • Open hybrid battery pack fuse
  • Open hybrid battery contactor
  • Hybrid battery pack ground cable or connection

What Does It Mean?

How to Fix Code P0AFA

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.

P0AFA Possible Symptoms

Engine light on (or service engine soon warning light)

P0AFA Meaning

The Engine Control Module (ECM) monitors the correlation between the battery disconnect control module battery voltage and the starter generator control module (SGCM) output voltage to detect a 36-volt cable open or fuse/relay failure. The ECM also monitors for overvoltage conditions and protects the MOSFET (charge discharge). If any of these conditions are detected, the appropriate Diagnostic Trouble Code (DTC) is set.

P0AFB – High Voltage of the Hybrid Battery System

Possible Causes of P0AFB

  • Open 36-volt battery cable
  • Open hybrid battery pack fuse
  • Open hybrid battery contactor
  • Hybrid battery pack ground cable or connection

What Does It Mean?

How to Fix P0AFB 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.

P0AFB Symptoms

Possible symptoms

Engine light on (or service engine soon warning light)

P0AFB Meaning

The Engine Control Module (ECM) monitors the correlation between the battery disconnect control module battery voltage and the starter generator control module (SGCM) output voltage to detect a 36-volt cable open or a fuse/relay failure. The ECM also monitors for an overvoltage condition and protects the MOSFET (charge discharge). If any of these conditions are detected, the appropriate diagnostic trouble code (DTC) is set.