Theft Deterrent and Door Lock Control ECU Inspection
THEFT DETERRENT AND DOOR LOCK CONTROL ECU INSPECTION1. INSPECT ECU CIRCUIT
(a) Inspect ECU Power Source Circuit.
(b) Inspect Actuator Power Source Circuit.
(c) Inspect Ignition Switch Circuit.
(d) Inspect Door Open Detection Switch Circuit.
If circuit is as specified, inspect ECU operation.
2. INSPECT ECU OPERATION
(a) With the connectors connected, shut all doors.
(b) Check that there is 10 V ~ 14 V between terminal B8 and ground when the ignition switch is turned ON.
(c) After turning the ignition switch OFF, check within 60 seconds that there is battery positive voltage between terminal B8 and ground.
(d) Turn the ignition switch ON then OFF and check that there is 10 V ~ 14 V between terminal B8 and ground when the ignition is switched OFF.
(e) Open the front door within 60 seconds of turning the ignition off and check that there is no voltage between terminal B8 and ground.
(f) Close all the doors and turn the ignition switch ON.
(g) When a front door is opened, check that there is battery positive voltage between terminal B 8 and ground.
(h) Check that there is no voltage between terminal B8 and ground when the ignition switch is turned to OFF. If operation is not as specified, replace the ECU.