Code 28 (Left Heater Sensor)

^D^ Defect code memory: 28 Left heater sensor

Explanation:
This defect code is stored when there is a short to ground, to positive, or a break at blue connector Pin 18.

Effect of defect:
If the defect is a current defect, a substitute value of 55°C (131°F) is used.

Possible cause:
Voltage supply (approximately 5V) not OK, wire or left heater sensor defective.

Troubleshooting:
Check voltage supply (approximately 5V with temperature sensor disconnected) as well as wires and repair or renew component as required.