TROUBLE DIAGNOSES — Electrical Components Inspection — Actuator (not self-diagnostic)
BR-60flowchartElectrical Components Inspection
ACTUATOR (Not self-diagnostic item)
Actuator electrical components inspection — using A.B.S. checker
1
INSPECTION START
2
Connect A.B.S. checker to actuator connector and vehicle harness with battery terminal connected and all checker switch turning off. Use harness for 3 channel. Set select switch to 3 channel.
3
Turn checker power supply switch on. Check power supply indicator for coming on.
No
Replace battery with fully charged new one, if checker connection is correct.
Yes
4
Check checker solenoid valve relay indicator for coming on.
No
[A] Replace solenoid valve relay, if checker connection is correct.
Yes
5
Select one valve. Select pressure decreasing position by switch then turn motor switch on. Turn motor switch off. Select pressure increasing position. Repeat so that all valves will be performed.
6
Check motor relay indicator for coming on while motor switch is turned on.
No
[B] Replace motor relay, if checker connection is correct.
Yes
7
Check motor for operational sound beside the actuator in a quiet place.
No
Replace actuator as assembly, if Diagnostic Procedures 7 - 12 are already performed and checker connection is correct.
Yes
8
Bring checker in the vehicle and depress the brake pedal. Repeat step [A].
CAUTION
Do not hold switch at the pressure decreasing position for more than 5 seconds. Otherwise, solenoid valve may be overheated and damaged.
NOTE
Valve select switch position RR is used for 4 channel checking. In the case of 3 channels, brake pedal vibration or depression will not occur in position RR. It will occur, however, in position RL.
See also
BR-54TROUBLE DIAGNOSES — Diagnostic Procedure 7 — Actuator Solenoid (L.E.D. flashing 1-4)BR-55TROUBLE DIAGNOSES — Diagnostic Procedure 8 — Wheel speed sensor (L.E.D. flashing 5-8)BR-56TROUBLE DIAGNOSES — Diagnostic Procedure 9 — Actuator Motor Relay (L.E.D. flashing 9)BR-57TROUBLE DIAGNOSES — Diagnostic Procedure 10 — Actuator Solenoid Valve Relay (L.E.D. flashing 10)BR-58TROUBLE DIAGNOSES — Diagnostic Procedure 11 — Control Unit (L.E.D. flashing 16)