PID/DATA MONITOR INSPECTION [ELECTRIC PARKING BRAKE]


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1.  Connect the M-MDS to the DLC-2.

2.  After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

(1)  Select “DataLogger”.
(2)  Select “Modules”.
(3)  Select “EPB”.

3.  Select the applicable monitor item from the PID table.

4.  Verify the PID data according to the directions on the screen.

Note
•  The PID data screen function is used for monitoring the calculated value of input/output signals in the module. Therefore, if the monitored value of the output parts is not within the specification, it is necessary to inspect the monitored value of input parts corresponding to the applicable output part control. In addition, because the system does not display an output part malfunction as an abnormality in the monitored value, it is necessary to inspect the output parts individually.

PID/data Monitor Table

Monitor item

Unit/Operation

Test condition

Specification (Reference)

Inspection item

M-MDS display

ACT_L_APPLY
Applied/Applying
Electric parking brake is applied
Applied
•  Inspect the electric parking brake switch and electric parking brake motor gear unit (LH).
Electric parking brake is applying while electric parking brake switch is pulled up
Applying
ACT_L_REL
Released/Releasing
Electric parking brake is released
Released
•  Inspect the electric parking brake switch and electric parking brake motor gear unit (LH).
Electric parking brake is releasing while electric parking brake switch is pushed down
Releasing
ACT_MAINTE
Off/Right_On/Left_On/On
Not maintenance mode
Off
•  Inspect the electric parking brake motor gear unit.
Maintenance mode
On
ACT_R_APPLY
Applied/Applying
Electric parking brake is applied
Applied
•  Inspect the electric parking brake switch and electric parking brake motor gear unit (RH).
Electric parking brake is applying while electric parking brake switch is pulled up
Applying
ACT_R_REL
Released/Releasing
Electric parking brake is released
Released
•  Inspect the electric parking brake switch and electric parking brake motor gear unit (RH).
Electric parking brake is releasing while electric parking brake switch is pushed down
Releasing
EPB_SW
Neutral/Apply/Release/Error
Electric parking brake switch is in neutral position
Neutral
•  Inspect the electric parking brake switch.
Electric parking brake switch is pulled up
Apply
Electric parking brake switch is pushed down
Release
MOTOR_L
A
Electric parking brake motor gear unit (LH) is operating
1—20 A
•  Inspect the electric parking brake motor gear unit (LH).
MOTOR_R
A
Electric parking brake motor gear unit (RH) is operating
1—20 A
•  Inspect the electric parking brake motor gear unit (RH).
VPWR
V
This PID indicates power supply voltage for electric parking brake control module.
•  Inspect the battery.
•  Inspect power supply circuit (ignition switch, IG1 relay, fuse etc.)
VSPD
KPH, MPH
This PID indicates vehicle speed.
•  Inspect the DSC HU/CM.