P0A45Drive Motor B Position Sensor 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
- P0A45 is the general circuit code for the resolver of the second traction motor (B), usually meaning its signal is missing. GM sets it like P0A3F when sine or cosine amplitude falls below 2.3 V (Type A, one trip). Mitsubishi uses it for the rear motor of the 2023 Outlander PHEV: both sine and cosine below 0.12 V for at least 0.18 s; the resolver is part of the rear motor assembly, which is replaced. Toyota fixes P0A45 on 2016-18 RAV4 Hybrid models built before a production change with a new frame wire harness, and Stellantis lists it for the Pacifica Hybrid. P0A46 to P0A49 split out degraded, low, high and intermittent signals. Expect a hybrid warning, MIL and loss of the motor B drive.
- What you may notice
- MIL and hybrid system warning message
- Loss of rear-axle electric drive or all-wheel drive
- Reduced power or vehicle not ready
- Likely causes
- LikelyDamaged or faulty frame/body wire harness to the rear motor (Toyota RAV4 Hybrid)
- PossiblePoor contact at the motor B resolver connector
- PossibleResolver or control unit inside the rear motor assembly failed (Mitsubishi)
- RareHybrid control software needing an update (Stellantis)
- 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 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.