Pinout Values and Diagnostic Parameters

B4 BUCKLE SW
1 - 2 : Closed with the driver's seat belt use

D9 DOOR COURTESY SW FRONT LH
1 - GROUND : Closed with the driver's door open

INTEGRATION RELAY [INSTRUMENT PANEL J/B]
10 - GROUND : Always continuity
6 - GROUND : Continuity with the driver's door open
5 - GROUND : Continuity with the ignition key in cylinder
8 - GROUND : Continuity unless driver's seat belt in use
9 - GROUND : 0 volts for 4 - 6 seconds with the ignition SW on and 12 volts 4 - 8 seconds after ignition SW on
1 - GROUND : Always approx. 12 volts
7 - GROUND : Approx. 12 volts with the ignition SW at ON position

U1 UNLOCK WARNING SW (IGNITION KEY)
1 - 2 : Closed with the ignition key in cylinder