DTC B1260, B1261 [FULL-AUTO AIR CONDITIONER]SM2445592
DTC B1260, B1261 [FULL-AUTO AIR CONDITIONER]

id0702c1800500

DTC B1260, B1261

Solar radiation sensor system
POSSIBLE CAUSE
• Light amount shone on the solar radiation sensor is insufficient (Circuit is normal)
• Solar radiation sensor malfunction
• Open or short circuit in wiring harness between climate control unit and solar radiation sensor

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
• Inspect the solar radiation sensor. (See SOLAR RADIATION SENSOR INSPECTION [FULL-AUTO AIR CONDITIONER].)
• Is it normal?
Yes
Go to the next step.
No
Replace the solar radiation sensor.
(See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
2
• Disconnect the climate control unit connector and the solar radiation sensor connector.
• Is there continuity between the following terminals of the climate control unit and the solar radiation sensor?
― 1E—B
― 1J—A
Yes
Go to the next step.
No
Repair the wiring harness.
3
• Is there a short circuit to ground in the wiring harness between climate control unit terminal 1E and solar radiation sensor terminal B?
Yes
Repair the wiring harness.
No
Inspect the connection of the climate control unit connector.
(See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)