02251

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02251 - Heater Unit Locked

02251 - Heater Unit Locked

Possible Symptoms

  • Heater not working
  • Heater Module refuses to clear Fault Codes

Possible Causes

  • Fuel Level low

Possible Solutions

  • When found in Aux Heater module of VW Touran (1T, and similar models), unlock heater module by saving a 1 in Adaptation Channel 042, then clear fault codes.
  • When found in Aux Heater module of VW Transporter (7H), unlock heater module by saving a 1 in Adaptation Channel 003, then clear fault codes.
  • When found in Aux Heater module of Audi A8 (4E), unlock heater module by saving a 1 in Adaptation Channel 007, then clear fault codes.