Subaru P1531: Battery Current Sensor Circuit High

Is your scanner showing Subaru P1531?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Subaru P1531: Battery Current Sensor Circuit High

OVERVIEW
Severity
:
Medium
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$80-$250
Can I Still Drive?
:
Yes (Short-term only)

What Does The Subaru P1531 Code Mean?

Detect the open or short circuit of battery current sensor. Judge as NG if out of specification.

Enable Conditions: Battery voltage ≥ 10.9 V Elapsed time after starting the engine > 1000 ms Engine speed > 500 rpm Ignition switch ON

What Are The Potential Causes Of The Subaru P1531 Code?

  • Short/Open between ECM and battery current sensor connector
  • Faulty battery current sensor

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Genuine Subaru Part 29182aa01b Battery Sensor

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Technical Service Bulletin for P1531 – 2008-2016MY Impreza, 2013-2017MY Crosstrek, 2014-2017MY Forester, 2015-2017MY WRX, 2013-2017MY BRZ.

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