Engine-Codes - Lexus - P0AC3 LEXUS

P0AC3 LEXUS - Hybrid Battery Pack Current Sensor 'A' Circuit Intermittent/Erratic

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0AC3 LEXUS Possible Causes

  • Hybrid battery junction block
  • Faulty Battery Smart Unit
  • Battery Smart Unit harness is open or shorted
  • Battery Smart Unit circuit poor electrical connection

How is the P0AC3 LEXUS code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0AC3 LEXUS code

Labor: 1.0

The cost to diagnose the P0AC3 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0AC3 LEXUS Meaning

The battery current sensor, which is mounted on the positive cable side of the HV battery assembly, detects the amperage that flows into the HV battery. The battery smart unit inputs a voltage, which varies between 0 and 5 V in proportion to the amperage, into the IB terminal from the battery current sensor. An output voltage of the battery current sensor below 2.5 V indicates that the HV battery is being discharged, and above 2.5 V indicates that the HV battery is being charged. The power management control ECU determines the charging and discharging amperage of the HV battery based on the

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