DTC B1260, B1261


id070200800500

DTC B1260, B1261

Solar radiation sensor system

POSSIBLE CAUSE

• 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.)
• Is it normal?
Yes
Go to the next step.
No
Replace the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION.)
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?
- S-B
- P-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 S 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].)