Test C: A Single Door Lock Is Inoperative

PINPOINT TEST C: A SINGLE DOOR LOCK IS INOPERATIVE

C1-C2:

C2-C3:

C4-C6:

Normal Operation
The door lock control switches are grounded through circuit 1205 (BK). The door lock control switches supply a ground signal to the smart junction box (SJB) for the lock command through circuit 1316 (WH/VT) from the driver door lock control switch, or circuit 1296 (OG/BK) from the passenger door lock control switch.The door lock control switches supply a ground signal to the SJB for the unlock command through circuit 1317 (DB/LG) from the driver door lock control switch, or circuit 1297 (YE/RD) from the passenger door lock control switch.

When the SJB receives a door lock control switch lock command, the door lock relay is energized, supplying voltage to the door lock actuators through circuits 1328 (RD/OG) and 1383 (RD). The actuators are grounded through circuits 1329 (YE) and 1384 (LB), the SJB and circuit 1205 (BK).

When the SJB receives a door lock control switch unlock command, the driver door unlock and the door unlock relays are energized, supplying voltage to the door lock actuators through circuits 1329 (YE) and 1384 (LB). The actuators are grounded through circuits 1328 (RD/OG) and 1383 (RD), the SJB and circuit 1205 (BK).

DTC B1300 - is a continuous or on-demand DTC that sets if the SJB detects an open on either of the door lock circuits 1328 (RD/OG) or 1383 (RD).

DTC B1310 - is a continuous or on-demand DTC that sets if the SJB detects an open on the door unlock circuit 1384 (LB).

DTC B1982 - is a continuous or on-demand DTC that sets if the SJB detects an open on the driver door unlock circuit 1329 (YE).

Possible Causes
- Circuit 1328 (RD/OG) open
- Circuit 1329 (YE) open
- Circuit 1383 (RD) open
- Circuit 1384 (LB) open
- Door lock actuator(s)
- SJB