Montero SR 4WD V6-3.5L SOHC (1997)
Solenoid: Testing and Inspection
OPERATION CHECK
1. Remove the vacuum hoses (blue stripe, yellow stripe) from the solenoid valves.
2. Disconnect the harness connectors.
3. Connect a hand vacuum pump to solenoid valve A. Apply negative pressure and carry out the following inspections.
a. Even if the hand pump is operated with no other operation, no negative pressure develops.
b. Even when battery positive voltage is applied to solenoid A, the condition is the same as in (a). But when the vacuum hose of solenoid B is
blocked by bending at the * mark, negative pressure is maintained.
c. When battery positive voltage is applied to solenoids A and B. negative pressure is maintained.
4. Connect the hand vacuum pump to solenoid valve B.
Apply negative pressure and carry out the following inspections.
a. With no other operation, negative pressure is maintained.
b. When battery positive voltage is applied to solenoid B. the negative pressure equalizes.
c. When battery positive voltage is applied to solenoid A, the negative pressure equalizes.
5. Measure the resistance of the solenoid valves.
Standard value: 36-46 ohms [at 20° C (68° F)]