Generator Signal Circuit

HEATING / 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 A/C 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 (A/C AMPLIFIER - GENERATOR)

(a) Disconnect the connector from the A/C amplifier.

(b) Disconnect the connector from the generator.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. INSPECT GENERATOR

(a) Inspect the generator.

(1) for 2AZ-FE:

Inspect the generator Component Tests and General Diagnostics for On-Vehicle Inspection, Testing and Inspection for Inspection).

(2) for 2ZR-FE:

Inspect the generator Component Tests and General Diagnostics for On-Vehicle Inspection, Testing and Inspection for Inspection).

Result:





C -- REPLACE GENERATOR (for 2ZR-FE) Removal

B -- REPLACE GENERATOR (for 2AZ-FE) Removal

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures