Test F: The One-Touch Down Feature Is Inoperative
PINPOINT TEST F: THE ONE-TOUCH DOWN FEATURE IS INOPERATIVEF1-F2:
F3-F5:
F6-F8:
Normal Operation
The front electronic module (FEM) supplies voltage to circuit 7S-AJ16 (YE/BK) to the driver window control switch. When the FEM detects a ground on circuit 7S-AJ16 (YE/BK), it supplies voltage and ground to the appropriate driver window motor circuits in order to accomplish the commanded one-touch down operation of the driver window.
DTC B1398 sets if the FEM senses an open, short to voltage, or a short to ground on circuit 7S-AJ16 (YE/BK).
Possible Causes
- circuit 7S-AJ16 (YE/BK) open, short to voltage, or short to ground
- driver window control switch
- FEM