What Does P0BDD Mean?
DTC P0BDD indicates the drive motor inverter temperature sensor "E" circuit voltage has fallen below the minimum expected threshold. The PCM is reading an abnormally low signal that indicates either a short to ground in the circuit or an internally shorted sensor. This prevents accurate temperature monitoring of the inverter section covered by sensor E.
Safety Warning
A low circuit reading disables accurate thermal protection for the inverter zone monitored by sensor E. This may cause the PCM to disable electric drive or allow undetected thermal stress on power electronics components.
Common Causes
35%
Short to ground in the sensor E signal wire
30%
Internally shorted inverter temperature sensor E
18%
Water intrusion or corrosion in the connector causing a low-resistance path
12%
Wiring harness damage from vibration or contact with inverter housing
5%
Failed PCM input circuit
Diagnostic Steps
1
Check sensor E live data; a value pegged at minimum temperature or minimum voltage confirms the low circuit fault.
2
Disconnect the sensor E connector and check the signal voltage at the PCM side; it should read a pull-up voltage with the sensor disconnected.
3
Inspect the harness from sensor E to the PCM for bare wire contact with ground, pinched insulation, or routing near sharp edges.
4
Measure the sensor resistance at the connector; a near-zero ohm reading indicates an internally shorted sensor.
5
Check connector pins and seals for moisture intrusion, especially if the vehicle has been exposed to underbody washing or flooding.
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
DTC P0BDD indicates the drive motor inverter temperature sensor "E" circuit voltage has fallen below the minimum expected threshold. The PCM is reading an abnormally low signal that indicates either a short to ground in the circuit or an internally shorted sensor. This prevents accurate temperature ...
The most common cause of P0BDD (Drive Motor Inverter Temperature Sensor "E" Circuit Low) is: Short to ground in the sensor E signal wire
Typical repair costs for P0BDD range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A low circuit reading disables accurate thermal protection for the inverter zone monitored by sensor E. This may cause the PCM to disable electric drive or allow undetected thermal stress on power electronics components.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0BDD 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.
