ON-BOARD DIAGNOSIS[AJ (3.0L Duratec)]


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On-Board Diagnostic (OBD) Test Description

•  The OBD test inspects the integrity and function of the ABS and outputs the results when requested by the specific tests.
•  On-board diagnostic test also:
―  Provides a quick inspection of the ABS usually performed at the start of each diagnostic procedure.
―  Provides verification after repairs to ensure that no other faults occurred during service.
•  The OBD test is divided into 3 tests:
―  Read/clear diagnostic results, PID monitor and record and active command modes.

Read/clear diagnostic results

•  This function allows you to read or clear DTCs in the ABS HU/CM memory.


PID/Data monitor and record

•  This function allows you to access certain data values, input signals, calculated values, and system status information.


Active command modes

•  This function allows you to control devices through the M-MDS.


Reading DTCs Procedure

1.  Connect the M-MDS to the DLC‐2 connector.

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

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “Self Test”.
3.  Select “Modules”.
4.  Select “ABS”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “Self Test”.

3.  Verify the DTC according to the directions on the screen.

•  If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.

4.  After completion of repairs, clear all DTCs stored in the ABS. (See ON-BOARD DIAGNOSIS[AJ (3.0L Duratec)].)


Clearing DTCs Procedures

1.  Connect the M-MDS to the DLC‐2 connector.

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

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “Self Test”.
3.  Select “Modules”.
4.  Select “ABS”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “Self Test”.

3.  Verify the DTC according to the directions on the screen.

4.  Press the clear button on the DTC screen to clear the DTC.

5.  Verify that no DTCs are displayed.


PID/Data Monitor and Record Procedure

1.  Connect the M-MDS to the DLC‐2 connector.

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

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “DataLogger”.
3.  Select “Modules”.
4.  Select “ABS”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “DataLogger”.

3.  Select the applicable PID from the PID table.

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

Note
•  The PID/Data monitor function is used for monitoring the calculated value. Therefore, if the monitored value of the output parts is not within the specification, inspection of the monitored value of input parts corresponding to applicable output part control is necessary. In addition, because the system does not display output part malfunction as abnormality in the monitored value, it is necessary to inspect the output part individually using a active command modes function.

Active Command Modes Procedure

1.  Connect the M-MDS to the DLC‐2 connector.

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

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “DataLogger”.
3.  Select “Modules”.
4.  Select “ABS”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “ABS”.
3.  Select “DataLogger”.

3.  Select the active command modes from the PID table.

4.  Perform the active command modes, inspect the operations for each parts.

•  If there is no operation sound from the relay, motor, and solenoid after the active command mode inspection is performed, it is possible that there is an open or short circuit in the wiring harness, relay, motor or solenoid, or sticking and operation malfunction.


DTC Table

DTC

System Malfunction Location

Page

M-MDS display

B1342
ABS HU/CM
B1676
Battery voltage
C1095
Pump motor
C1145
RF ABS wheel-speed sensor
C1155
LF ABS wheel-speed sensor
C1165
RR ABS wheel-speed sensor
C1175
LR ABS wheel-speed sensor
C1233
LF ABS sensor rotor
C1234
RF ABS sensor rotor
C1235
RR ABS sensor rotor
C1236
LR ABS sensor rotor


PID/DATA Monitor Table

PID name (definition)

Unit/Operation

Operation condition (Reference)

Action

ABS HU/CM terminal

M-MDS display

BOO_ABS
On/Off
•  Brake pedal depressed: On
•  Brake pedal released: Off
•  Inspect the brake switch.
CCNTABS
-
Indicates number of DTC
•  Perform the DTC inspection.
G_INPUT
G
•  Vehicle stopped or driving at constant speed: 0 G
•   Accelerated: Changes 0 G—positive
•  Decelerated: Changes 0 G—negative
•  Inspect the ABS HU/CM.
LF_WSPD
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
•  Inspect the ABS wheel-speed sensor.
U, X
LR_WSPD
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
•  Inspect the ABS wheel-speed sensor.
I, L
RF_WSPD
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
•  Inspect the ABS wheel-speed sensor.
P, S
RR_WSPD
KPH, MPH
•  Vehicle stopped: 0 KPH, 0 MPH
•  Vehicle running: Vehicle speed
•  Inspect the ABS wheel-speed sensor.
J, G


Active Command Modes Table

Command name

Output device

Operation

Operating condition

G_SENSOR
G-sensor
On/Off
Ignition switch at ON
LF_INLET
LF inlet solenoid valve
LF_OUTLET
LF outlet solenoid valve
LR_INLET
LR inlet solenoid valve
LR_OUTLET
LR outlet solenoid valve
PMP_MOTOR
Pump motor
RF_INLET
RF inlet solenoid valve
RF_OUTLET
RF outlet solenoid valve
RR_INLET
RR inlet solenoid valve
RR_OUTLET
RR outlet solenoid valve