Test A: A Single/More Than One Door Lock Is Inoperative

PINPOINT TEST A: A SINGLE/MORE THAN ONE DOOR LOCK IS INOPERATIVE

A1-A2:

A2-A4:

A4-A5:

A6-A8:

A8-A9:

Normal Operation
The generic electronic module (GEM) receives voltage on circuit 29-AA17 (OG/WH) and ground on circuits 31-DK20 (BK) and 91-DK20 (BK/BU). The GEM monitors the door lock control switches and supplies voltage on circuit 32-AA59 (WH/BK) and grounding circuit 33-AA59 (YE/BK) to unlock all the doors. The GEM monitors the door lock control switches and supplies voltage on circuit 33-AA59 (YE/BK), and ground on circuit 32-AA59 (WH/BK) to lock all the doors.

Possible Causes
- fuse
- circuit 29-AA17 (OG/WH) open or short to ground
- circuit 31-DK20 (BK) open or short to voltage
- circuit 32-AA59 (WH/BK) open, short to ground or short to voltage
- circuit 33-AA59 (YE/BK) open, short to ground or short to voltage
- circuit 91-DK20 (BK/BU) open or short to voltage
- door latch(es)
- GEM