Circuit Description
A2 A/C SINGLE PRESSURE SW2-3 : Open above approx. 1323 kPa (192 psi, 13.5 kgf/cm2)
Closed below approx. 980 kPa (142 psi, 10 kgf/cm2)
C18 COOLING FAN ECU
1-4 : 10-14 Volts with the ignition SW ON
9-10 : 2.5 Volts at 20° C (68° F) and ignition SW ON
1.2 Volts at 80° C (176° F) and ignition SW ON
8-GROUND : 10-14 Volts at A/C single pressure SW ON (Open)
0-3 Volts at A/C single pressure SW OFF (Closed)
4-GROUND : Always continuity
E4 ENGINE COOLANT TEMP SENSOR (COOLING FAN)
1-2: 1.5 K Ohms at 80° C (176° F)
0.7 K Ohms at 110° C (230° F)