U0028 - F-CAN Communication Circuit Error

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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U0028 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

First diagnose U0028 code

    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 terminals.

Cost of diagnosing the U0028 code

    Labor: 1.0

    The cost of diagnosing the U0028 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.

U0028 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 More Information

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