Initial Inspection and Diagnostic Overview

I19 (A), I21(C) INSTRUMENT ECU
(C) 1 - GROUND : Always approx. 12 volts
(C) 2 - GROUND : Approx. 12 volts with ignition SW at ON or ST position
(C) 4 - GROUND : Always continuity
(A) 3 - GROUND : Continuity with front RH door open
(A)14 - GROUND : Continuity with front LH door open
(A)20 - GROUND : Continuity with ignition key in ignition key cylinder

D26, D27 DOOR LOCK MOTOR AND DOOR UNLOCK DETECTION SW FRONT LH, RH
2 - GROUND : Approx. 12 volts with door lock motor at lock operate
3 - GROUND : Approx. 12 volts with door lock motor at unlock operate

D28, D29 DOOR LOCK MOTOR REAR LH, RH
2 - GROUND : Approx. 12 volts with door lock motor at lock operate
3 - GROUND : Approx. 12 volts with door lock motor at unlock operate

B4 BACK DOOR LOCK MOTOR
2 - GROUND : Approx. 12 volts with door lock motor at lock operate
3 - GROUND : Approx. 12 volts with door lock motor at unlock operate