Service Hints

A 2 A/C DUAL PRESSURE SW
1-4: Open above approx. 2.0 kg/cm2 (28.4 psi, 196 kPa) or 32 kg/cm2 (455 psi 3138 kPa)

A 3 A/C MAGNETIC CLUTCH
1-Ground: Approx. 3.7 Ohms

A12-A, A13-B, A14-C A/C AUTOMATIC AMPLIFIER
+B-Ground: Always approx. 12 Volts
IG-Ground: Approx. 12 Volts with the ignition SW at ON position
HR-Ground: Approx. 12 Volts with the ignition SW at ON position and do not turn the blower motor
Below 1 Volts with the ignition SW at ON position and turn the blower motor
ACC-Ground: Approx. 12 Volts with the ignition SW at ACC or ON position
BLW-Ground: Below 1.5 Volts with the ignition SW ON and turn the blower motor
S5-Ground: 4-6 Volts with the ignition SW ON
SGI-Ground: Always continuity
AMH-AMC: 1.3-1.9 Volts with the ignition SW OFF
FRS-Ground: Approx. 12 Volts with the FRESH SW ON
REC-Ground: Approx. 12 Volts with the RECIRC SW ON
FACE-Ground: Approx. 12 Volts with the FACE SW ON
DEF-Ground: Approx. 12 Volts with the DEF SW ON
GND-Ground: Always continuity

A15 A/C POWER TRANSISTOR (BLOWER CONTROL)
1-3: Approx. 2.0-2.4 K Ohms