OBDII Code List

U0029 HONDA - Vehicle Communication Bus A Performance

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)
  • U0029 Honda 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 of more, the PCM detects a malfunction and sets the U0029 code.
    OBDII Code U0029 Honda - Vehicle Communication Bus A Performance -

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    Related Information

    U0029 HONDA Comments

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