P0BDBDrive Motor Inverter Temperature Sensor E Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Which thermistor counts as inverter temperature sensor E is set by the manufacturer. In GM's hybrid tables it is the third sensor of the motor A inverter (PIM sensor #3), assigned to phase W in the 2016 to 2019 tables. P0BDB is the general circuit code for an electrical fault that is not classed as low, high or erratic. No manufacturer documents this exact code publicly; GM uses only the siblings P0BDC, P0BDD and P0BDE. CARB requires hybrid sensor circuits to be monitored for circuit faults. Without a valid reading the controller cannot protect the phase W power switches and usually limits motor torque. The sensor is built into the inverter, so the repair is often the inverter assembly.
- What you may notice
- Malfunction indicator lamp or hybrid system warning
- Reduced electric drive power
- Further inverter temperature codes stored at the same time
- Likely causes
- LikelyInternal fault of the thermistor or its circuit inside the power inverter module
- PossibleCorroded or loose connector at the inverter module
- RareSoftware fault in the motor control processor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.