Service Hints

FAN NO. 1 RELAY
4-3 : Open with the ignition SW ON, the A/C single pressure SW ON and the water temp. SW (Radiator fan) ON

A.C FAN NO.2 RELAY
3-4 : Closed with the ignition SW OFF, the A/C single pressure SW OFF or the water temp. SW (Radiator fan) OFF
3-5 : Closed with the ignition SW ON, the A/C single pressure SW ON and the water temp. SW (Radiator fan) ON

A.C FAN NO. 3 RELAY
3-5 : Closed with the ignition SW ON and the A.C MG relay ON

HTR RELAY
1-2 : Closed with the ignition SW ON and the blower SW ON

A3 A/C TRIPLE PRESSURE SW (A/C DUAL AND SIGNAL PRESSURE SW)
1-4 : Open with the refrigerant pressure at less than approx. 196.1 kpa (2.0 kgf/cm2, 28.4 psi) or more than approx. 3138.1 kpa (32.0 kgf/cm2, 458 psi)
2-3 : Open with the refrigerant pressure more than 1520 kpa (15.5 kgf/cm2, 220 psi)

W3 WATER TEMP. SW (RADIATOR FAN)
1-GROUND : Open above approx. 90° C (194° F)
Closed below approx. 83° C (181° F)

A 10 A/C AMPLIFIER
2-GROUND : Approx. 12 Volts with the ignition SW at ONposition, the blower SW at LO, M1, M2 or HIposition and the A/C dual pressure SW ON
5-GROUND : Always continuity
7-GROUND : Approx. 12 Volts with the ignition SW at ONposition, the blower SW at LO, M1, M2 or HIposition and the A/C SW at ON position or the air vent mode control lever at DEF mode
9-GROUND : Below 4 Volts with the ignition SW at ONposition the blower SW at LO, M1, M2 or HIposition and the A/C SW at ON position or the air vent mode control lever at DEF mode