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B257B, B257C AMBIENT SENSOR HAC-167 < DTC/CIRCUIT DIAGNOSIS > [WITH 7 INCH DISPLAY] C D E F G H J K L M A B HAC N O P B257B, B257C AMBIENT SENSOR Description INFOID:0000000005514706 COMPONENT DESCRIPTION Ambient Sensor • The ambient sensor (1) is installed to the front bumper (left back). value which is then input into the A/C auto amp. Ambient Sensor Circuit AMBIENT TEMPERATURE INPUT PROCESS The A/C auto amp. equips a processing circuit for the ambient sensor input. However, when the temperature ° C (0.6 ° F) per 100 sec- onds. DTC Logic INFOID:0000000005514707 DTC DETECTION LOGIC NOTE: or . • If there is an open circuit in the ambient sensor, A/C auto amp. registers extreme cold [ − 44 ° C ( − 47 ° F)] and adjusts the temperature control warmer. DTC CONFIRMATION PROCEDURE 1. CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III JSIIA1532JP JPIIA0612GB DTC Items (CONSULT-III screen terms) Diagnostic item is detected when... Possible cause B257B AMB TEMP SEN SHORT Detected temperature at ambient sensor − 44 ° C ( − 47 ° F) or less • Ambient sensor (Ambient sensor circuit is open, B257C AMB TEMP SEN OPEN Detected temperature at ambient sensor ° C (212 ° F) or more |