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Home >> Lexus >> 1994 >> SC 400 V8-4.0L (1UZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> Diagnosis Circuit

Diagnosis Circuit

This circuit sends signals to the ECU requesting output of diagnostic trouble codes.

Diagnostic Chart:




Wiring Diagram:






Inspection Procedure - Step 1:




Step 2:




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