ON-BOARD DIAGNOSTIC TEST [MZ-CD 1.6]

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DTC Reading Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “Self Test”.

(2)  Select “Modules”.

(3)  Select “PCM”.

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

4.  Verify the DTC according to the directions on the IDS 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].)

Pending Trouble Code Access Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “Self Test”.

(2)  Select “Modules”.

(3)  Select “PCM”.

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

4.  Retrieve the pending trouble codes according to the directions on the IDS screen.

Freeze Frame PID Data Access Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “Self Test”.

(2)  Select “Modules”.

(3)  Select “PCM”.

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

4.  Retrieve the freeze frame PID data according to the directions on the IDS 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].)

•  Freeze frame data items are not displayed, according to detected DTC.

Freeze frame data item	Unit	Description	Corresponding PID data monitor item
LOAD	%	Calculated LOAD Value	LOAD
ECT	°C	Engine Coolant Temperature	ECT
MAP	Pa	Intake Manifold Absolute Pressure	MAP
RPM	RPM	Engine RPM	RPM
VS	KPH	Vehicle Speed Sensor	VSS
IAT	°C	Intake Air Temperature	IAT
MAF	g/sec	Air Flow Rate from Mass Air Flow Sensor	MAF
TP	%	Absolute Throttle Position	TP1
RUNTM	sec	Time Since Engine Start	—
FRP	KPa	Fuel Rail Pressure	FRP
BARO	Pa	Barometric Pressure	BARO
APP_D	%	Accelerator Pedal Position D	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].)

•  Snapshot data items are not displayed, according to detected DTC.

Snapshot data item	Unit	Definition	Corresponding PID data monitor item
LOAD_C	%	Calculated Load Value	—
ECT	°C	Engine coolant temperature	ECT
MAP	Pa	Manifold absolute pressure sensor	MAP
RPM	RPM	Engine Revolutions Per Minute	RPM
VSS	KPH	Vehicle Speed	VSS
IAT	°C	Intake Air Temperature	IAT
MAF	g/sec	Mass Air Flow	MAF
TP1	%	Throttle Position Sensor 1	TP1
EG_RUN_TIME	—	Times Since Engine Start	—
FUEL_PRES	Pa	Fuel pressure sensor	FRP
BARO	Pa	Barometric pressure	BARO
APP1	%	Accelerator pedal position sensor 1	APP1
TOTAL_TIME	—	Total Time	—
TOTAL_DIST	Km	Total Distance	—
VPWR	V	Module supply voltage	—
CABIN_TEMP	°C	Cabin Temperature	—
AAT	°C	Ambient Air Temperature	AAT
PWR_MODE_QF	Power Mode Undefined /Eval in Progress / Power Mode OK /Power Mode QF Undefined	Power Mode Quality Factor	—
PWR_MODE_KEY	Key Out /Key Recently Out /Key Approved /Post Accessory /Accessory /Post Ignition /Ignition On /Running /Run-Standby /Crank /Run-In Progress /Undefined	Power Mode Key State	—

On-Board System Readiness Tests Access Procedure

1.  Connect the M-MDS (IDS) to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “Powertrain”.

(2)  Select “OBD Test Modes”.

(3)  Select “Mode 1 Powertrain Data”.

(4)  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 (IDS) to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initialization screen of the IDS.

(1)  Select “DataLogger”.

(2)  Select “Modules”.

(3)  Select “PCM”.

3.  Select the PID from the PID table.

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