B1244

LIGHTING: LIGHTING SYSTEM: B1244: Light Sensor Circuit Malfunction

DTC B1244 - Light Sensor Circuit Malfunction

DESCRIPTION

This DTC is output when failure in the light sensor circuit is detected.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and press the intelligent tester main switch ON.
(c) Select the items below in the DATA LIST, and read the displays on the intelligent tester.

BODY





NG -- CHECK HARNESS OR CONNECTOR (BODY ECU - AUTOMATIC LIGHT CONTROL SENSOR)
OK -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
2. CHECK HARNESS OR CONNECTOR (BODY ECU - AUTOMATIC LIGHT CONTROL SENSOR)





(a) Disconnect the automatic light control sensor connector and body ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. REPLACE AUTOMATIC LIGHT CONTROL SENSOR
(a) Return to normal operation.
NG -- REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
OK -- END