B1027 - Rear Blower Control Request Input Circuit/Performance: Notes

Fig 1: Rear Blower Control Request Input Circuit/Performance - Wiring Diagram

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS information.

>>When Monitored:<< With the ignition on.
>>Set Condition:<< If low and high rear blower speeds are requested simultaneously.

Possible Causes
REAR BLOWER FEED SENSE OR REAR BLEND SENSE SUPPLY CIRCUITS C11 AND C800 SHORTED TO VOLTAGE
REAR BLOWER FEED SENSE CIRCUIT SHORTED TO REAR BLEND SENSE SUPPLY CIRCUIT C11 AND C800
REAR BLOWER CONTROL SWITCH
A/C HEATER CONTROL

NOTE:

This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC is stored.