Initial Inspection and Diagnostic Overview

Inspection Flow:

TROUBLE DIAGNOSIS PROCEDURE FOR MAGNET CLUTCH

Steps 1 - 2:

Steps 3 - 5:

Steps 6 - 7:

Steps 8 - 9:

Steps 10 - 11:

Steps 12 - 14:

Steps 15 - 16:

Step 17:

MAGNET CLUTCH CIRCUIT

SYMPTOM:
Magnet clutch does not engage when A/C switch and fan switch are ON.

ELECTRICAL COMPONENTS INSPECTION







A/C Relay
Check continuity between terminals 3 and 5.
If NG, replace relay.







Dual Pressure Switch (KA24DE Models)
Check continuity between terminals.

Triple Pressure Switch (VG33E Models):

KA24DE:

VG33E:

Thermo Control Amp.
1. Run engine and operate A/C system.
2. Connect the voltmeter from harness side.
3. Check the thermo control amp. operation as shown in the table.