02251

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 Touareg (7L), unlock heater module by saving a 1 in Adaptation Channel 003, then clear fault codes.
• 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.
• When found in Aux Heater module of Audi A4 (8K), Audi A5 (8T), Audi Q5 (8R), Audi A6 (4F), Audi A6 (4G), Audi A7 (4G) or Audi A8 (4H), unlock heater module by saving a 1 in Adaptation Channel 042, then clear fault codes.