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Home >> Scion >> 2008 >> xD L4-1.8L (2ZR-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Component Tests and General Diagnostics >> Air Conditioning System >> Generator Signal Circuit
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Generator Signal Circuit








AIR CONDITIONING: AIR CONDITIONING SYSTEM: Generator Signal Circuit

Generator Signal Circuit

DESCRIPTION

When the engine is started, the generator rotates and a pulsed voltage signal is generated. This signal is used by the air conditioning amplifier. The generated voltage signals sent from the generator are used for controlling the number of the heater elements to be heated.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - GENERATOR)





(a) Disconnect the G8 air conditioning amplifier connector.
(b) Disconnect the C9 generator connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





(d) Reconnect the generator connector.
(e) Disconnect the air conditioning amplifier connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT GENERATOR
(a) Inspect the generator Testing and Inspection for ON-VEHICLE INSPECTION, Testing and Inspection for INSPECTION).
NG -- REPLACE GENERATOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
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