ON-BOARD DIAGNOSTIC TEST [MZ-CD 1.6 (Y6)]

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DTC Reading Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “PCM”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “Self Test”.

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 PCM, while referring to “AFTER REPAIR PROCEDURE“. (See AFTER REPAIR PROCEDURE [MZ-CD 1.6 (Y6)].)


Pending Trouble Code Access Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “PCM”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “Self Test”.

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

4.  Retrieve the pending trouble codes according to the directions on the M-MDS screen.


Freeze Frame PID Data Access Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “Self Test”.
2.  Select “Modules”.
3.  Select “PCM”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “Self Test”.

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

4.  Retrieve the freeze frame PID data according to the directions on the M-MDS screen.

Note
•  Freeze frame data/snapshot data appears at the top of the help screen when the displayed DTC is selected.
Freeze frame data
•  The freeze frame data consists of data for vehicle and engine control system operation conditions when malfunctions in the engine control system are detected and stored in the PCM.
•  Freeze frame data is stored at the instant the malfunction indicator lamp illuminates, and only a part of the DTC data is stored.
•  For the freeze frame data, if there are several malfunctions in the engine control system, the data for the malfunction which occurred initially is stored. Thereafter, if a misfire or fuel injection control malfunction occurs, data from the misfire or fuel injection control malfunction is written over the initially stored data. However, if the initially stored freeze frame data is a misfire or fuel injection control malfunction, it is not overwritten.
Snapshot data
•  The snap shot data stores the currently detected DTC data.
•  The recording timing for the freeze frame data/snap shot data differs depending on the number of DTC drive cycles.
―  For a DTC with a drive cycle number 1, only the malfunction determination data is recorded.
―  For a DTC with a drive cycle number 2, both the malfunction determination and undetermined data is recorded.


Freeze frame data table

Note
•  Refer to PID monitor table for confirm the engine control system operation status while the PCM does not store the DTC. (See PCM INSPECTION [MZ-CD 1.6 (Y6)].)
•  Freeze frame data items are not displayed, according to detected DTC.

Freeze frame data item

Unit

Description

Corresponding PID data monitor item
LOAD
%
Calculated engine load
LOAD
ECT
°C
Engine coolant temperature
ECT
MAP
Pa
Manifold absolute pressure
MAP
RPM
RPM
Engine speed
RPM
VS
KPH
Vehicle speed
VSS
IAT
°C
Intake air temperature
IAT
MAF
g/sec
Mass airflow
MAF
EGRPCT
%
Target EGR valve position
SEGRP_DSD
FRP
Pa
Fuel pressure
FRP
BARO
Pa
Barometric pressure
BARO
APP_D
%
Accelerator pedal position No.1
APP1


Snapshot data table

Note
•  Refer to PID monitor table for confirm the engine control system operation status while the PCM does not store the DTC. (See PCM INSPECTION [MZ-CD 1.6 (Y6)].)
•  Snapshot data items are not displayed, according to detected DTC.

Snapshot data item

Unit

Definition

Corresponding PID data monitor item
LOAD_C
%
Calculated engine load
—
ECT
°C
Engine coolant temperature
ECT
MAP
Pa
Manifold absolute pressure
MAP
RPM
RPM
Engine speed
RPM
VSS
KPH
Vehicle speed
VSS
IAT
°C
Intake air temperature
IAT
MAF
g/sec
Mass airflow
MAF
SEGRP_DSD
%
Target EGR valve position
SEGRP DSD
BARO
Pa
Barometric pressure
BARO
APP1
%
Accelerator pedal position No.1
APP1
TOTAL_TIME
—
Total energization time for module
—
TOTAL_DIST
Km
Total traveled distance
—
VPWR
V
Module supply voltage
—
ENG_STAT
Ready/ Running/ AFTERRUN
Engine status
ENG_STAT
CABIN_TEMP
°C
Cabin temperature
—
AAT
°C
Ambient air temperature
AAT


On-Board System Readiness Tests Access Procedure

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select ”Powertrain”.
2.  Select “OBD Test Modes”.
3.  Select “Mode 1 Powertrain Data”.
4.  Select “PCM”.
•  When using the PDS (Pocket PC)
1.  Select “OBDII Modes”.
2.  Select “Mode 1 Powertrain Data”.
3.  Select “PCM”.

3.  Then, select the “***SUP” and “**EVAL” PIDs in the PID selection screen.

4.  Monitor those PIDs and check it system monitor is completed.


PID/DATA Monitor And Record Procedure

Note
•  The PID/DATA monitor function monitors the calculated value of the input/output signals in the PCM. Therefore, an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device. If a monitored value of an output device is out of specification, inspect the monitored value of the input device related to the output control.

1.  Connect the M-MDS to the DLC-2.

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

•  When using the IDS (laptop PC)
1.  Select “DataLogger”.
2.  Select “Modules”.
3.  Select “PCM”.
•  When using the PDS (Pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “DataLogger”.

3.  Select the PID from the PID table.

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