Operation CHARM: Car repair manuals for everyone.

Service Hints

A 4 A/C DUAL PRESSURE SW
4-1 : Open above approx. 15.5 kg/cm2 (224 psi, 1520 kPa) or 27 kg/cm2 (391 psi, 2648 kPa)

A 3 A/C MAGNETIC CLUTCH
4-GROUND : Approx. 3.7 Ohms

A 9-A, A10-B, A11-C A/C 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
PSW-GROUND : Below 1 Volts with the ignition SW ON
AC1-GROUND : Below 1 Volts at start the engine, operate the compressor or more volts at start the engine, do not operate the compressor
BLW-GROUND : Below 1.5 Volts with the ignition SW ON and turn the blower motor
S5-SG : 4-6 Volts with the ignition SW at ON position
SG-GROUND : Always continuity
AMH-AMC : 1.3-1.9 Volts with the ignition SW OFF
AIF-GROUND : Approx. 12 Volts with the FRESH SW ON
AIR-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