Service Hints

AUTOMATIC AIR CONDITIONING

MG CLT RELAY [ENGINE ROOM R/B NO.1]
5 - 3 : Closed with the ignition SW on, the blower SW on and the A/C SW on or the heater control SW at DEF position

A4 A/C DUAL PRESSURE SW
4 - 1 : Open above approx. 2.0 kgf/sq.cm (28 psi, 196 kpa) or 32 kgf/sq.cm (455 psi, 3138 kpa)

A3 (A), (B) A/C MAGNETIC CLUTCH
(A) 3, (B) 4 - GROUND : Approx. 3.7 ohms

A14 (A), A15 (B) A/C CONTROL ASSEMBLY
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 at ON position
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 - G ROUND : Approx. 12 volts with the DEF SW on
GND - GROUND : Always continuity