EP-CAN A Malfunction BUS-OFF Battery Condition Monitor Module


Table of contents

P1D09 ACURA Possible Causes

  • Faulty Battery Condition Monitor Module
  • Battery Condition Monitor Module harness is open or shorted
  • Battery Condition Monitor Module circuit poor electrical connection

How do I fix code P1D09 ACURA?

  Check 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.

Cost of diagnosing the P1D09 ACURA code

  The cost of diagnosing the P1D09 ACURA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

P1D09 ACURA Description

  The battery control processor is in the battery condition monitor module. The controller area network (CAN) transmits/ receives pulsing signals to/from the battery voltage cell voltage sensor simultaneously by using two signal lines (BATT-CAN_H and BATT-CAN_L). When the processor does not receive the signals via the BAT-CAN lines for a set time, a malfunction is detected and a DTC is stored.

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