FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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1999
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SC 400 V8-4.0L (1UZ-FE)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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Manufacturer Code Charts
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Heating and Air Conditioning
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DTC 21
DTC 21
CIRCUIT DESCRIPTION
A Photo diode in the solar sensor detects solar radiation and sends signals to the A/C control assembly.
DETECTING CONDITIONS
WIRING DIAGRAM
Step 1:
Step 2:
Step 3:
INSPECTION PROCEDURE