P0A29 High Hybrid Battery Shut-Off Circuit

P0A29 Possible Causes

  • Faulty hybrid battery
  • Hybrid battery harness is open or shorted
  • Hybrid battery electrical circuit poor electrical connection

What Does It Mean?

How to Fix Code P0A29

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.

P0A29 Possible Symptoms

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

P0A29 Meaning

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

P0A2A Drive Motor A Temperature Sensor Circuit

P0A2A Possible Causes

  • Drive motor A temperature sensor faulty
  • Drive motor A temperature sensor harness open or shorted
  • Poor electrical connection in drive motor A temperature sensor circuit

What Does It Mean?

How to Fix Code P0A2A

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.

P0A2A Possible Symptoms

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

P0A2A Meaning

The engine control module (ECM) monitors the hybrid battery. The ECM sets the OBDII code when the hybrid battery doesn’t meet factory specifications.
OBDII Code P0A2A – Drive Motor A Temperature Sensor Circuit

P0A2B Drive Motor “A” Temperature Sensor Circuit Range / Performance

P0A2B 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

What Does It Mean?

How to Fix P0A2B 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.

P0A2B Possible Symptoms

Engine light on (or service engine soon warning light)

P0A2B Meaning

The resistance of the thermistor built into the motor temperature sensor changes according to MG2 temperature changes. The lower the MG2 temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance.
OBDII Code P0A2B – Drive Motor A Temperature Sensor Circuit Range/Performance

P0A2C Drive Motor A Temperature Sensor Circuit Low

P0A2C Possible Causes

  • Faulty hybrid vehicle engine
  • Hybrid vehicle engine wiring harness open or shorted
  • Poor electrical connection in hybrid vehicle engine circuit

What Does It Mean?

How to Fix P0A2C 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.

P0A2C Possible Symptoms

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

P0A2C Meaning

The thermistor resistance, which is enclosed in engine temperature sensor No. 1, changes according to engine temperature changes. The lower the engine temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance. Engine temperature sensor No. 1 is connected to the HV control ECU. The 5V power supply voltage is provided from the HV control ECU MMT terminal to engine temperature sensor No. 1 via resistor R.

Since resistor R and engine temperature sensor No. 1 are connected in series, the resistance changes with engine temperature changes, which also causes the voltage across MMT to change. Based on this signal, the HV control ECU limits the load to prevent engine overheating. Additionally, the HV control ECU checks engine temperature sensor No. 1 for wiring malfunction and the sensor for malfunction.

P0A2D Drive Motor “A” Temperature Sensor Circuit High

P0A2D Possible Causes

  • Faulty hybrid vehicle engine
  • Hybrid vehicle engine wiring harness is open or short-circuited
  • Poor electrical connection of the hybrid vehicle engine circuit

What Does It Mean?

How to Fix Code P0A2D

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.

P0A2D Possible Symptoms

Engine light on (or service engine soon warning light)

P0A2D Meaning

The resistance of the thermistor, which is enclosed in engine temperature sensor No. 1, changes according to engine temperature changes. The lower the engine temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance. Engine temperature sensor No. 1 is connected to the HV control ECU. The 5V supply voltage is provided from the MMT terminal of the HV control ECU to engine temperature sensor No. 1 via resistor R.

Since resistor R and engine temperature sensor No. 1 are connected in series, the resistance changes with engine temperature changes, which also causes the voltage across MMT to change. Based on this signal, the HV control ECU limits the load to prevent the engine from overheating. Additionally, the HV control ECU checks engine temperature sensor No. 1 for wiring malfunction and the sensor for malfunction.

P0A2E Drive Motor “A” Temperature Sensor Circuit Intermittent

P0A2E Possible Causes

  • Faulty hybrid vehicle engine
  • Hybrid vehicle engine wiring harness open or shorted
  • Poor electrical connection in hybrid vehicle engine circuit

What Does It Mean?

How to Fix Code P0A2E

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.

P0A2E Possible Symptoms

Engine light on (or service engine soon warning light)

P0A2E Meaning

The resistance of the thermistor built into the engine temperature sensor changes according to MG2 temperature changes. The lower the MG2 temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance.

P0A2F Drive Motor “A” Overheating

P0A2F Possible Causes

  • Faulty hybrid vehicle motor
  • Hybrid vehicle motor wiring harness open or shorted
  • Poor electrical connection in hybrid vehicle motor circuit

What Does It Mean?

How to Fix Code P0A2F

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.

Possible Symptoms

Engine light on (or service engine soon warning light)

P0A2F Meaning

The resistance of the thermistor built into the motor temperature sensor changes according to MG2 temperature changes. The lower the MG2 temperature, the higher the thermistor resistance. Conversely, the higher the temperature, the lower the resistance.
OBDII Code P0A2F – Drive Motor ‘A’ Overheating

P0A31 Drive Motor “B” Temperature Sensor Circuit Range / Performance

P0A31 Possible Causes

  •      Faulty hybrid vehicle motor
  •      Hybrid vehicle motor wiring harness open or shorted
  •      Poor electrical connection in hybrid vehicle motor circuit

What Does It Mean?

How to Fix Code P0A31

     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.

P0A31 Possible Symptoms

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

P0A31 Meaning

The engine control module (ECM) monitors the drive motor temperature sensor “B”. The ECM sets the OBDII code when the drive motor temperature sensor “B” does not meet factory specifications.

P0A32 Drive Motor Temperature Sensor “B” Circuit

P0A32 Possible Causes

  • Defective hybrid vehicle motor
  • Hybrid vehicle motor wiring harness is open or short-circuited
  • Poor electrical connection in the hybrid vehicle motor circuit

What Does It Mean?

How to Fix Code P0A32

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.

P0A32 Possible Symptoms

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

P0A32 Meaning

The Engine Control Module (ECM) monitors the “B” drive motor temperature sensor. The ECM sets the OBDII code when the “B” drive motor temperature sensor does not meet factory specifications.

P0A33 Drive Motor “B” Temperature Sensor Circuit High

P0A33 Possible Causes

  • Faulty hybrid vehicle motor
  • Hybrid vehicle motor wiring harness open or shorted
  • Poor electrical connection in hybrid vehicle motor circuit

What Does It Mean?

How to Fix Code P0A33

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.

P0A33 Possible Symptoms

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

P0A33 Meaning

The Engine Control Module (ECM) monitors the drive motor temperature sensor “B”. The ECM sets the OBDII code when the drive motor temperature sensor “B” does not meet factory specifications.