B1244

LIGHTING: LIGHTING SYSTEM: B1244: Light Sensor Circuit Malfunction

DTC B1244 - Light Sensor Circuit Malfunction

DESCRIPTION

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






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (AUTOMATIC LIGHT CONTROL SENSOR)
(a) Using the Techstream, read the Data List.

Body





OK:
Output illuminance is as shown in table above.
OK -- CHECK AND REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
NG -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR
(a) Check for open and short circuit in the harness and the connector between terminal CLTB of the automatic light control sensor and the instrument panel J/B assembly (driver side J/B assembly).
(b) Check for open and short circuit in the harness and the connector between terminal CLTS of the automatic light control sensor and the instrument panel J/B assembly (driver side J/B assembly).
(c) Check for open and short circuit in the harness and the connector between terminal CLTE of the automatic light control sensor and the instrument panel J/B assembly (driver side J/B assembly).
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE AUTOMATIC LIGHT CONTROL SENSOR