ON-BOARD DIAGNOSTIC TEST [DOSING CONTROL UNIT (SKYACTIV-D 2.2)]

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DTC Reading Procedure

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 “Self Test”.

(2)  Select “Modules”.

(3)  Select “SCRCU”.

3.  Then, select the “Retrieve CMDTCs” and perform procedures according to directions on the M-MDS screen.

4.  Verify the DTC according to the directions on the M-MDS screen.

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

5.  After completion of repairs, clear all DTCs stored in the dosing control unit. (See CLEARING DTC [DOSING CONTROL UNIT (SKYACTIV-D 2.2)].)

PID/DATA Monitor and Record Procedure

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 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.

•  When detecting DTCs, PIDs related to a malfunctioning system may not display even if the module is normal. Therefore, if a PID is not displayed, it is necessary to verify the DTC, perform malfunction diagnosis of the DTC that was detected, and do repairs.

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 “SCRCU”.

3.  Select the applicable PID from the PID table.

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

Active Command Modes Procedure

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 “SCRCU”.

3.  Select the simulation items from the PID table.

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

•  If the operation of output parts cannot be verified after the active command mode inspection is performed, this could indicate the possibility of an open or short circuit, sticking, or operation malfunction in the output parts.