IG Power Source Circuit

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: IG Power Source Circuit
- IG Power Source Circuit

DESCRIPTION

The main power source is supplied to the air conditioning amplifier assembly when the engine switch is on (IG). The power source is used for operating the air conditioning amplifier assembly and servo motor, etc.

WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
Start the engine before inspection. Check the relay or battery if the smart access system with push-button start does not start.

PROCEDURE

1. INSPECT FUSE (ECU-IG NO. 2)

(a) Remove the ECU-IG NO. 2 fuse from the cowl side junction block LH.

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

Standard Resistance:





NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY AND BODY GROUND)





(a) Disconnect the E35 amplifier connector.

(b) Disconnect the E36 amplifier connector.

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

Standard Voltage:





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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY Removal