FREE WHEEL SOLENOID VALVE OPERATION CHECK
| 1.Remove the vacuum hoses (blue stripe, yellow stripe) from the solenoid valves. |
| 2.Disconnect the harness connectors. |
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3.Connect a hand vacuum pump to solenoid valve A and carry out the following inspections. (1) Even if the hand pump is operated with no other operation, no negative pressure develops. (2) Negative pressure does not develop when battery voltage is applied to solenoid valve A. Negative pressure is maintained when the vacuum hose of solenoid valve B is blocked by bending. (3) When battery voltage is applied to solenoids A and B, negative pressure is maintained. |
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4.Connect the hand vacuum pump to solenoid valve B. Apply negative pressure and carry out the following inspections. (1) With no change, negative pressure is maintained. (2) When battery voltage is applied to solenoid valve B, the vacuum shuts off. (3) When battery voltage is applied to solenoid valve A, the vacuum shuts off. 5.Measure the resistance of the solenoid valves. Standard value : 36 - 46 Ω |