U0028 - F-CAN Communication Circuit Error

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

  • Reprogram Powertrain Control Module (PCM)
  • Faulty Powertrain Control Module (PCM)
  • Powertrain Control Module (PCM) harness is open or shorted
  • Powertrain Control Module (PCM) circuit poor electrical connection
  • Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • U0028 Description

    The Controller Area Network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (CANH and CANL). When the Powertrain Control Module (PCM) does not receive the signals via the CAN lines for a set time or more, the PCM detects a malfunction and a DTC is stored.
    OBDII Code U0028 - F-CAN Communication Circuit Error - AutoCodes.com

    U0028 Information for specific makes

  • U0028 ACURA F-CAN Communication Circuit Error
  • U0028 HONDA F-CAN Communication Circuit Error
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    U0028 Comments

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