P0AF6 Code - Drive Motor Inverter Temperature Sensor 'B' Circuit Intermittent/Erratic
Quick Answer
The HV control ECU uses a temperature sensor, which is built into the inverter, to detect the temperature of the motor inverter. Common causes include Faulty Inverter With Converter Assembly, Inverter With Converter Assembly harness is open or shorted, Inverter With Converter Assembly circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0AF6 indicates Drive Motor Inverter Temperature Sensor 'B' Circuit Intermittent/Erratic.
- Common causes
- Common causes include Faulty Inverter With Converter Assembly, Inverter With Converter Assembly harness is open or shorted, Inverter With Converter Assembly circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0AF6 Description
The characteristic of the motor inverter temperature sensor is the same as the boost converter temperature sensor.
The HV control ECU limits the load based on the signals transmitted by the motor inverter temperature sensor, in order to check the effectiveness of the inverter cooling system and prevent the inverter from overheating. Furthermore, the HV control ECU detects a malfunction in the wiring of the motor inverter temperature sensor, as well as in the sensor itself.
What are the Possible Causes of the DTC P0AF6?
- Faulty Inverter With Converter Assembly
- Inverter With Converter Assembly harness is open or shorted
- Inverter With Converter Assembly circuit poor electrical connection
- Faulty HV Control ECU
How to Fix the DTC P0AF6?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0AF6 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- P0AF6 Lexus — Drive Motor Inverter Temperature Sensor 'B' Circuit Intermittent/Erratic
- P0AF6 Nissan — Drive Motor Inverter Temperature Sensor 'B' Circuit Intermittent/Erratic
- P0AF6 Toyota — Drive Motor Inverter Temperature Sensor 'B' Circuit Intermittent/Erratic
Frequently Asked Questions about P0AF6 Code
What does the OBDII code P0AF6 mean?
1. P0AF6 indicates an issue with the Drive Motor Inverter Temperature Sensor 'B' circuit, which is sending intermittent or erratic signals to the vehicle's control module. 2.
What are the common symptoms of a P0AF6 code?
Common symptoms include an illuminated check engine light, reduced hybrid or EV system performance, overheating warnings, or limited driving modes. 3.
What causes the P0AF6 code to appear?
Possible causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, or an issue with the drive motor inverter itself. 4.
How is the P0AF6 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the wiring and connectors, test the temperature sensor, and check the inverter for signs of damage or malfunction. 5.
Can I drive my vehicle with a P0AF6 code?
Driving with a P0AF6 code is not recommended, as it can lead to poor performance, overheating, or damage to the drive motor inverter and other components. 6.
How do I fix the P0AF6 code?
Repairs may involve replacing the temperature sensor, repairing or replacing damaged wiring, or addressing issues with the drive motor inverter. 7.
How much does it cost to fix a P0AF6 code?
Repair costs vary, typically ranging from $150 to $1,000 or more, depending on whether the issue is a simple wiring repair or a full inverter replacement. 8.
Can a bad temperature sensor cause the P0AF6 code?
Yes, a faulty Drive Motor Inverter Temperature Sensor 'B' can cause this code by providing erratic or incorrect data to the control module. 9.
What tools are needed to troubleshoot the P0AF6 code?
Diagnostic tools such as an OBDII scanner, multimeter, and wiring diagrams are essential for pinpointing the issue. 10.
Can a software update fix the P0AF6 code?
In rare cases, a software update or reprogramming of the control module may resolve the issue if it stems from a programming glitch, but hardware issues are more common.
Discuss the causes and fixes for P0AF6 OBDII Code
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