Checking Pre-Stroke Power Supply System

CHECKING PRE-STROKE POWER SUPPLY SYSTEM












[CHECK/1] Check fuse
1. Check that the power fuse for the pre-stroke actuator is not blown.
2. Measure the voltage at the fuse portion.







3. Judgement
- Fuse is blown (voltage is normal) -> after finding cause, replace fuse
- Fuse is normal -> go to [CHECK/2]
- Voltage is not as specified -> disconnection in harness between battery and fuse, battery abnormal -> repair harness or check battery







[CHECK/2] Check harness between unit and power source for pre-stroke actuator system
1. Remove all harness connectors from the control unit, turn the ignition key switch ON, then measure the voltage the body (-end) and between terminal (2) (+ end) of connector [I-70-2].







2. Judgement
- Voltage is as specified -> control unit abnormal -> replace control unit
- Voltage is not as specified -> abnormality in power harness between power harness connectors, or pre-stroke cut relay abnormal -> repair or replace harness, or replace pre-stroke cut relay