Electric Control Components

Electric Control:

COMPONENTS

Circuit:

CIRCUIT

INSPECTION OF ELECTRIC CONTROL COMPONENTS

(A241H/CENTER DIFFERENTIAL CONTROL SYSTEM)







1. INSPECT DIFFERENTIAL CONTROL SWITCH
a. Remove the differential control switch.
b. Using an ohmmeter, measure the resistance at each terminal.
If not, replace the switch.




c. Install the differential control switch.

2. INSPECT SPEED SENSOR.
3. INSPECT DIFFERENTIAL CONTROL SOLENOID




a. Disconnect the differential control solenoid connector.
b. Using an ohmmeter, measure the resistance between terminal and body ground.

Resistance: 10 - 16 ohm




c. Apply battery voltage between terminal and body ground. At this time, confirm that a solenoid operation sound in head.
If not, replace the solenoid.
d. Connect the differential control solenoid connector.




4. INSPECT OIL PRESSURE SWITCH
a. Remove the oil pressure switch.
b. Using an ohmmeter, measure the resistance between terminal and switch body.

Resistance: infinity ohm

c. While blowing low-compressed air (2 kg-cm, 28 psi or 196 kPa) into the switch, measure the resistance.

Resistance: 0 ohm

If not, replace the oil pressure switch.

d. Install the oil pressure switch.










5. INSPECT CENTER DIFFERENTIAL CONTROL COMPUTER CIRCUIT
a. Remove the center console box.
b. Turn on the ignition switch.
c. Measure the voltage at each terminals.




6. INSPECT OIL TEMPERATURE SWITCH
Using an ohmmeter, measure the resistance between terminal and switch body.

Resistance: Oil temperature
Below 130 °C (266 °F) infinity ohm
Above 150 °C (302 °F) 0 ohm