P1440 on Acura
On Honda and Acura hybrids, motor power inverter module output circuit malfunction; on Toyota, secondary air injection control valve circuit, bank 1
Severity: Inspect soon
On the Honda and Acura hybrids this is an inverter fault in the high-voltage system, and owners report jerking, reduced power and a pull-over warning, so treat it as urgent.
It gets more serious if:
- Stop: Stop somewhere safe and arrange a tow if the car jerks, loses power, shows a pull-over warning or the IMA system stops charging. Two Acura ILX owners describe a sudden jerk and reduced power with this fault.
This page covers only what differs on Acura. For what P1440 means, the ranked causes and the test order, see the P1440 guide.
What's different on Acura
AcuraYour car
2013 · ILX
Supported by vehicle dataILX Hybrid: bulletin B20-021 carries the same list; owners report a jerk while braking, IMA light, reduced power and a pull-over warning.
B20-021Status unverified
Motor power inverter warranty extension (ILX Hybrid)
2013ilx · issued · NHTSA 10184664
Same as A20-030 for the 2013 ILX Hybrid.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- Acura bulletin B20-021: motor power inverter warranty extension, ILX Hybrid
- NHTSA complaint ODI 11485532 (2013 Acura ILX, P1440)
- NHTSA complaint ODI 11534323 (2013 Acura ILX)
- Honda bulletin A20-030: motor power inverter warranty extension, Civic Hybrid
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error