P0A48Drive Motor B Position Sensor Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0A48 reports a motor B resolver line reading above its allowed range, for example a sine, cosine or excitation wire shorted to a supply voltage, or an open coil whose line is pulled up by the input bias circuit until the converter clips. No manufacturer documents this code publicly. Mitsubishi handles high resolver voltages on the 2023 Outlander PHEV with its own codes (P0C53/P0C5D at 4.9 V or more on the front motor, P0C58/P0C62 on the rear), and Kia uses the motor A twin P0A42 on the Optima Hybrid. CARB 1968.2 requires circuit checks of electric drive components; Bosch patents describe detecting an open sine or cosine line and a short to supply. P0A47 is the low side. Expect a warning lamp and loss of motor B.
- What you may notice
- MIL and hybrid system warning
- Second motor disabled, reduced traction or power
- Vehicle may not enter ready mode
- Likely causes
- LikelyResolver line shorted to a supply voltage
- PossibleOpen sine or cosine line pulled high by the input circuit
- PossibleCorroded or loose terminals at the motor B resolver connector
- RareFaulty resolver input stage in the motor control module
- 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.