B10A2 - Left Blend Door Control 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 A/C heater control monitors the door driver circuits during actuator operation for shorts to ground, shorts to battery, and shorts to other door driver circuits. If detected, the A/C heater control reports these types of faults as control circuit/performance DTCs.
- >>When Monitored:<< When actuator movement is requested.
- >>Set Condition:<< If the A/C heater control detects a short to ground or to voltage on the recirculation door driver, the passenger blend door driver, the driver blend door driver, the mode door driver, or the common door driver 2 circuits while attempting to drive the recirculation door driver.
| Possible Causes |
|---|
| RECIRCULATION DOOR DRIVER CIRCUIT C32 SHORTED TO VOLTAGE |
| PASSENGER BLEND DOOR DRIVER CIRCUIT C33 SHORTED TO VOLTAGE |
| DRIVER BLEND DOOR DRIVER CIRCUIT C61 SHORTED TO VOLTAGE |
| MODE DOOR DRIVER CIRCUIT C35 SHORTED TO VOLTAGE |
| COMMON DOOR DRIVER 2 CIRCUIT C807 SHORTED TO VOLTAGE |
| RECIRCULATION DOOR DRIVER CIRCUIT C32 SHORTED TO GROUND |
| PASSENGER BLEND DOOR DRIVER CIRCUIT C33 SHORTED TO GROUND |
| MODE DOOR DRIVER CIRCUIT C35 SHORTED TO GROUND |
| COMMON DOOR DRIVER 2 CIRCUIT C807 SHORTED TO GROUND |
| RECIRCULATION DOOR DRIVER CIRCUIT C32 SHORTED TO OTHER DOOR DRIVER CIRCUITS |
| PASSENGER BLEND DOOR DRIVER CIRCUIT C33 SHORTED TO OTHER DOOR DRIVER CIRCUITS |
| DRIVER BLEND DOOR DRIVER CIRCUIT C61 SHORTED TO OTHER DOOR DRIVER CIRCUITS |
| MODE DOOR DRIVER CIRCUIT C35 SHORTED TO OTHER DOOR DRIVER CIRCUITS |
| COMMON DOOR DRIVER 2 CIRCUIT C807 SHORTED TO OTHER DOOR DRIVER CIRCUITS |
| RECIRCULATION DOOR ACTUATOR |
| MODE DOOR ACTUATOR |
| PASSENGER BLEND DOOR ACTUATOR |
| A/C HEATER CONTROL |
NOTE:
The DTC must be active for the results of this test to be valid. Do not perform this test if the DTC is stored. for stored DTC test procedures.