U1205 - IMA-CAN Malfunction Battery Condition Monitor Module-Motor Control Module

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Motor Control Module (MCM) / Battery Condition Monitor (BCM)
  • Motor Control Module (MCM) / Battery Condition Monitor (BCM) harness is open or shorted
  • Motor Control Module (MCM) / Battery Condition Monitor (BCM) circuit poor electrical connection

Possible symptoms

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

U1205 Description

The Integrated Motor Assist-Controller Area Network (IMA-CAN) uses two signal lines, IMACANH and IMACANL, and it receives and transmits multiple signals simultaneously to/from multiple control modules.

When the information is not sent from the Motor Control Module (MCM) through the IMA-CAN and this condition continues for a specified time or when the information sent from the MCM is abnormal and this condition continues for a specified cycle, the Battery Condition Monitor (BCM) module detects a malfunction and when BUS-OFF is not detected after the time to detect BUS-OFF has passed, a DTC is stored.

OBDII Code U1205 - IMA-CAN Malfunction Battery Condition Monitor Module-Motor Control Module - AutoCodes.com

U1205 Information for specific makes

  • U1205 HONDA IMA-CAN Malfunction Battery Condition Monitor Module-Motor Control Module

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