With 7 Inch Display

B2630, B2631 SUNLOAD SENSOR





Description

SUNLOAD SENSOR





- The sunload sensor (1) is installed to the front defroster grille LH.
- 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 conditioning 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 Logic

DTC DETECTION LOGIC






DTC REPRODUCTION PROCEDURE
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Perform the "SELF-DIAGNOSIS".
2. Check if any DTC is detected in the self-diagnostic results.

NOTE:
- If DTC is displayed along with DTC "U1000" or "U1010", first diagnose the DTC "U1000" or "U1010". Climate Control With 7 Inch Display or Climate Control With 7 Inch Display.
- Sunload sensor may register a malfunction when indoors, at dusk, or at other times when light is insufficient.
When performing the diagnosis indoors, use a lamp (60 W or more) that is pointed at the sunload sensor.
Is DTC "B2630" or "B2631" displayed?
YES - Perform the diagnosis for the sunload sensor. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK SUNLOAD SENSOR POWER SUPPLY CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the sunload sensor connector.
3. Turn the ignition switch ON.
4. Check voltage between sunload sensor harness connector and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK SUNLOAD SENSOR CIRCUIT CONTINUITY
1. Turn the ignition switch OFF.
2. Disconnect the A/C auto amp. connector.
3. Check for continuity between the sunload sensor harness connector and the A/C auto amp. harness connector.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair the harnesses or connectors.
3.CHECK SUNLOAD SENSOR
1. Connect the sunload sensor connector.
2. Connect the A/C auto amp. connector.
3. Check the sunload sensor components. SEE Component Inspection.
Is the inspection result normal?
YES - Replace the A/C auto amp.
NO - Replace the sunload sensor.
4.CHECK SUNLOAD SENSOR CIRCUIT CONTINUITY
1. Turn the ignition switch OFF.
2. Disconnect the A/C auto amp. connector.
3. Check for continuity between the sunload sensor harness connector and A/C auto amp. harness connector.





4. Check for continuity between sunload sensor harness connector and ground.





Is the inspection result normal?
YES - Replace A/C auto amp.
NO - Repair the harnesses or connectors.




Component Inspection
1.CHECK SUNLOAD SENSOR
1. Turn the ignition switch ON.
2. Check the input voltage from the sunload sensor between the A/C auto amp. harness connector and ground. Refer to the applicable table for the normal value.











NOTE:
- When checking indoors, use a lamp of approximately 60 W. Move the lamp towards and away from the sensor to check.
- The sunload amount produced by direct sunshine in fair weather is equivalent to approximately 0.77 kW/m2 (662 kcal/m2-h).
Is the inspection result normal?
YES - INSPECTION END
NO - Replace the sunload sensor.