Engine-Codes - Toyota - P0A1F TOYOTA

P0A1F TOYOTA - Battery Energy Control Module

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

P0A1F TOYOTA Possible Causes

  • HV battery voltage circuit
  • Service plug grip
  • High voltage fuse
  • Battery plug
  • Battery ECU

How is the P0A1F TOYOTA 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 P0A1F TOYOTA code

Labor: 1.0

The cost to diagnose the P0A1F TOYOTA 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)

P0A1F TOYOTA Meaning

The HV control ECU calculates the differences between the received HV battery voltage, boost converter voltage, and inverter voltage. If any of the differences exceed prescribed values, the HV control ECU determines that there is a malfunction in the battery voltage circuit. When the HV control ECU detects a malfunction, it illuminates the MIL and sets a Diagnostic Trouble Code (DTC).

More Information

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