B1015 - Rear Defrost Switch Request Input Circuit/Performance: Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Volkswagen Routan, 2013 Volkswagen Routan, 2012 Volkswagen Routan, 2011 Volkswagen Routan, and 2010 Volkswagen Routan. However, it is still accessible from the selected car via links, so may be relevant.
For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS information.
Theory of Operation
The switch input changes when the switch is pushed down. A stored DTC indicates that the rear defrost switch was stuck in a pushed position for more than 10 minutes, but has since returned to its normal state. An active DTC indicates that the rear defrost switch is stuck in a pushed position.
- >>When Monitored:<< With the ignition on.
- >>Set Condition:<< If the rear defrost switch is detected in a pushed position for more than 10 minutes.
| Possible Causes |
|---|
| OBJECT HOLDING REAR DEFROST SWITCH IN A PUSHED POSITION |
| SUBSTANCE CAUSING REAR DEFROST SWITCH TO GET STUCK IN A PUSHED POSITION |
| A/C HEATER CONTROL |