What Does P0BD6 Mean?
DTC P0BD6 indicates a general malfunction in the drive motor inverter temperature sensor "D" circuit. The powertrain control module (PCM) has detected an electrical fault in the circuit that monitors the temperature of inverter section D. This sensor is critical for protecting the inverter's power electronics from thermal damage during electric drive operation.
Safety Warning
Loss of inverter temperature monitoring can allow thermal runaway, potentially causing reduced power output, limp mode activation, or inverter damage. The vehicle may limit or disable electric drive capability.
Common Causes
30%
Faulty inverter temperature sensor D
28%
Damaged or corroded wiring/connector in sensor D circuit
22%
Open or short circuit in the sensor harness
12%
Failed inverter control module
8%
Poor ground connection at the inverter assembly
Diagnostic Steps
1
Retrieve freeze frame data and note operating conditions when the fault was set, including inverter temperature and motor load.
2
Inspect the wiring harness and connector at inverter temperature sensor D for corrosion, damage, chafing, or loose pins.
3
Measure resistance of temperature sensor D at the connector; compare to manufacturer specification for ambient temperature (typically 1k-10k ohms NTC).
4
Check for proper voltage supply and ground at the sensor connector using a multimeter with the ignition on.
5
Monitor sensor D live data on the scan tool while gently flexing the harness to detect intermittent faults.
6
If all wiring checks pass, replace the inverter temperature sensor D and clear codes.
Estimated Repair Cost
$200 - $900
Parts + labor, varies by vehicle and location
DTC P0BD6 indicates a general malfunction in the drive motor inverter temperature sensor "D" circuit. The powertrain control module (PCM) has detected an electrical fault in the circuit that monitors the temperature of inverter section D. This sensor is critical for protecting the inverter's power e...
The most common cause of P0BD6 (Drive Motor Inverter Temperature Sensor "D" Circuit) is: Faulty inverter temperature sensor D
Typical repair costs for P0BD6 range from $200 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Loss of inverter temperature monitoring can allow thermal runaway, potentially causing reduced power output, limp mode activation, or inverter damage. The vehicle may limit or disable electric drive capability.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0BD6 to identify the root cause.
OBDHut Mobile App
Scan codes directly from your car with the OBDHut app.
Coming Soon
Quick Info
Category
Powertrain
System
Electric Drive Motor / Inverter
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
