Service Hints

HEATER RELAY
5-3 : Closed with the ignition SW at ON position and the blower SW on

A3 A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW]
1-4 : Open with the refrigerant pressure at less than approx. 2.0 kgf/Sq.cm (28.4 psi, 196.1 kpa) or more than
approx. 32.0 kgf/Sq.cm (455 psi, 3138.1 kpa)

A7 A/C AMPLIFIER
2-GROUND : Approx. 12 volts with the ignition SW at ON position, the blower SW on and the refrigerant pressure is between 2.0 kgf/Sq.cm (28.4 psi, 196.1 kpa) and 32.0 kgf/Sq.cm (455 psi, 3138.1 kpa)
3-GROUND : Approx. 12 volts with the ignition SW at ON position, the blower SW on and the air vent mode control lever in DEF or FOOT & DEF position
5-GROUND : Always continuity
8-GROUND : Approx. 12 volts with the ignition SW at ON position, the blower SW on and the A/C SW on
9-13 : Approx. 4852 Ohms (0° C, 32° F)
: Approx. 2341 Ohms (15° C, 59° F)

B3 BLOWER MOTOR AND RESISTER
3-6 : Approx. 0.39 Ohms
3-5 : Approx. 1.49 Ohms
3-4 : Approx. 2.79 Ohms
1-GROUND : Approx. 12 volts with the ignition SW at ON position and the blower SW on
4-GROUND : Always continuity

Two Way Flow Heater
I11 INLET AIR POSITION DETECTION SW [INSIDE SW]
1-2 : Continuity with the inlet control lever at REC position

HEATER RELAY
5-3 : Closed with the ignition SW at ON position and the blower SW on

P4 PTC AMPLIFIER
3-GROUND : Approx. 12 volts with the ignition SW at ON position
4-GROUND : Approx. 12 volts with the ignition SW at ON position, the blower SW on and the max hot SW on
6-GROUND : Always continuity
10-GROUND : Continuity with the inlet control lever at REC position