Test C: The Door Locks Operate Only One Way
PINPOINT TEST C: THE DOOR LOCKS OPERATE ONLY ONE WAYNormal Operation
The door lock control switches provide a ground circuit GD179 (BK/VT) for the smart junction box (SJB) lock and unlock signal circuits CPK19 (BU/GN) and CPK23 (YE/VT). The door lock actuator output circuits CPL11 (GY/BN), CPL13 (BN/GN) and CPL43 (VT/GY) are at ground on circuit GD179 (BK/VT) through the SJB when the lock and unlock relays are not energized.
When the SJB receives a lock request through circuit CPK19 (BU/GN), the SJB processes the lock request and energizes the all lock relay, supplying voltage to circuit CPL11 (GY/BN) to lock the doors. Circuits CPL13 (BN/GN) and CPL43 (VT/GY) are at ground on circuit GD179 (BK/VT) through the SJB.
When the SJB receives an unlock request through circuit CPK23 (YE/VT), the SJB processes the unlock request and energizes the all unlock relay and driver unlock relay supplying voltage to circuits CPL13 (BN/GN) and CPL43 (VT/GY) to unlock the doors. Circuit CPL11 (GY/BN) is at ground on circuit GD179 (BK/VT) through the SJB.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Door lock control switch
- SJB
C1-C3:
C3-C4:
C4-C5:
