DTC B1260, B1261
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Solar radiation sensor system
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POSSIBLE CAUSE |
• Solar radiation sensor malfunction
• Open or short circuit in wiring harness between climate control unit and solar radiation sensor
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Diagnostic Procedure
STEP
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INSPECTION
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ACTION
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1
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• Inspect the solar radiation sensor. (See SOLAR RADIATION SENSOR INSPECTION.)
• Is it normal?
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Yes
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Go to the next step.
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No
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Replace the solar radiation sensor. (See SOLAR RADIATION SENSOR REMOVAL/INSTALLATION.)
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2
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• 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?
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Yes
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Go to the next step.
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No
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Repair the wiring harness.
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3
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• Is there a short circuit to ground in the wiring harness between climate control unit terminal S and solar radiation sensor terminal B?
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Yes
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Repair the wiring harness.
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No
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Inspect the connection of the climate control unit connector. (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)
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