Test R: DTC B2604 PSD On/Off Switch Open Circuit

PINPOINT TEST R: DTC B2604 PSD ON/OFF SWITCH OPEN CIRCUIT

R1-R3:

R4-R6:

Normal Operation
With the overhead console on/off switch in the ON position, a ground signal is supplied to the PSD modules on circuit 1236 (VT/WH) which then enables the B-pillar switches and power assist. The overhead switch has an ignition feed through circuit 640 (RD/YE) from the SJB fuse 16 (5A). With the overhead console on/off switch in the OFF position, the ground is removed from circuit 1236 (VT/WH) which will disable the B-pillar switches and the power assist. The ground for the overhead console switch assembly is shared by the overhead console open/close switches.

Possible Causes
- circuit 1236 (VT/WH) open
- overhead console switch assembly
- PSD module