B2630, B2631 SUNLOAD SENSOR

AUTOMATIC AIR CONDITIONER

B2630 B2631

Description

SUNLOAD SENSOR

The sunload sensor (1) is installed to the front defroster grille of the driver side.
The sunload sensor converts the sunload amount (illuminance) into the current value with the photodiode. The A/C auto amp. calculates this current value to the voltage and inputs it.

SUNLOAD AMOUNT CORRECTION

The A/C auto amp. inputs the sunload amount detected with the sunload sensor.
Perform the correction of the sunload amount detected with the sunload sensor for each air conditioner control.
When the sunload amount suddenly changes, for example when entering a tunnel, perform the correction so that the recognition sunload amount of the A/C auto amp. changes slowly.

DTC DETECTION LOGIC

DTC	Items (CONSULT-III screen terms)	Diagnostic item is detected when...	Possible causes
B2630	SUNLOAD SEN (SHORT)	Detected calorie at sunload sensor 2832 W/m² (2437 kcal/m²·h) or more	Sunload sensor A/C auto amp. Harness and connector (Short in the sunload sensor circuit)
B2631	SUNLOAD SEN (OPEN)	Detected calorie at sunload sensor 64.7 W/m² (56 kcal/m²·h) or less	Sunload sensor A/C auto amp. Harness and connector (Open in the sunload sensor circuit)

DTC REPRODUCTION PROCEDURE

1.PERFORM SELF-DIAGNOSIS

1.CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT

2.CHECK SUNLOAD SENSOR CIRCUIT CONTINUITY

3.CHECK SUNLOAD SENSOR

4.CHECK SUNLOAD SENSOR CIRCUIT CONTINUITY

1.CHECK SUNLOAD SENSOR