Circuit Service Hints

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

A 3-A A/C DUAL PRESSURE SW (A/C TRIPLE PRESSURE SW) (2JZ-GTE)
A-1-A-4: Open above approx. 225 kPa (33 psi, 2.3 kg/cm2) or 3140 kPa (458 psi, 32 kg/cm2)

A 3-B A/C DUAL PRESSURE SW (2JZ-GE)
B-1-B-2: Open above approx. 225 kPa (33 psi, 2.3 kg/cm2) or 3140 kPa (458 psi, 32 kg/cm2)

A12-C, A13-A, A14-B A/C AMPLIFIER
+B-GROUND: Always approx. 10-14 Volts
IG-GROUND: Approx. 10-14 Volts with the ignition SW at ON position
HR-GROUND: Approx. 10-14 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. 10-14 Volts with the ignition SW at ACC or ON position
TW-GROUND: 10-14 Volts at start the engine and max. cold position of the A/C temp. control SW
Below 1 Volts at start the engine and max. warm position of the A/C temp. control SW
MGC-GROUND: Below 1 Volts at start the engine, push the A/C auto SW and the A/C SW ON position
10-14 Volts at start the engine, push the A/C auto SW and the A/C SW OFF position
BLW-GROUND: 1.0-3.0 Volts with the ignition SW ON and turn the blower motor
S5-GROUND: 4-6 Volts with the ignition SW ON
SG-GROUND: Always continuity
AMH-AMC: 13-19 Volts with the ignition SW OFF
AOF-GROUND: Approx. 12 Volts with the face SW ON
AOD-GROUND: Approx. 12 Volts with the def SW ON
GND-GROUND: Always continuity