ON-BOARD DIAGNOSTIC TEST [MZI-3.7 (PCM CONNECTOR (3 TYPES))]

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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 initial 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“.

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 initial 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 initial 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.

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 initial 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.

Note

• If the on-board system readiness tests are not completed the PCM stores DTC P1000.

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 initial 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 test results according to detections on the screen.

PID/Data Monitor Table

The Mazda Modular Diagnostic System (M-MDS)

PID Name	Description	Unit
AAT	Ambient air temperature	°C		°F
AC_PRES	Refrigerant pressure sensor	V
AC_PRES	Refrigerant pressure sensor	kPa	psi		Bar
AC_REQ	A/C request signal	Off/On
ACCS	A/C relay	Off/On
ALTF	Generator field coil control duty value	%
APP	Accelerator pedal position	%
APP1	APP sensor No.1	%
APP1	APP sensor No.1	V
APP2	APP sensor No.2	%
APP2	APP sensor No.2	V
ARPMDES	Target engine speed	RPM
AXLE	Axle ratio	—
BARO	Barometric pressure	kPa	psi		Bar
BOO	Brake switch	Off/On
BPA	Brake pressure applied switch	Off/On
CATT11_DSD	Estimated catalytic converter temperature (RH)	°C		°F
CATT21_DSD	Estimated catalytic converter temperature (LH)	°C		°F
CHRGLP	Generator warning light	Off/On
CHT	CHT sensor	°C		°F
CHT	CHT sensor	V
ECT	Engine coolant temperature	°C		°F
EQ_RAT11	Equivalence ratio (lambda) A/F sensor (RH)	—
EQ_RAT11_DSD	Desired equivalence ratio (lambda)	—
EQ_RAT12	Equivalence ratio (lambda) HO2S (RH)	—
ETC_ACT	Electronic throttle control actual	°
ETC_DSD	Electronic throttle control desired	%
ETC_DSD	Electronic throttle control desired	°
EVAPCP	Purge solenoid valve duty value	%
EVAPCV	CV solenoid valve	Off/On
FAN_DUTY	Cooling fan control	%
FCL	Fuel cap warning light	Off/On
FLI	Fuel level	%
FP	Fuel pump relay	Off/On
FPM	Fuel pump monitor	Off/On
FTP	Fuel tank pressure sensor	V
FUELSYS	Fuel system loop status (RH)	OL/CL/OL-Drive/OL-Fault/CL-Fault
GENVDSD	Generator voltage desired	V
HTR11	A/F sensor heater (RH)	Off/On
HTR11	A/F sensor heater (RH)	%
HTR12	HO2S heater (RH)	Off/On
HTR12	HO2S heater (RH)	%
HTR21	A/F sensor heater (LH)	Off/On
HTR22	HO2S heater (LH)	Off/On
IAT	IAT sensor	°C		°F
IAT	IAT sensor	V
INGEAR	Load/no load condition	Off/On
INJ_PWR	Injector power monitor	V
IVS	CTP condition	Off Idle/Idle
KNOCKR	Knocking retard	°
LOAD	Engine load	%
LONGFT1	Long term fuel trim (RH)	%
LONGFT2	Long term fuel trim (LH)	%
MAF	MAF sensor	g/s
MAF	MAF sensor	V
MIL_DIS	Travelled distance since the MIL illuminated	km
O2S11	A/F sensor (RH)	V
O2S12	HO2S (RH)	V
O2S21	A/F sensor (LH)	V
O2S22	HO2S (LH)	V
PSP	PSP switch	Low/High
RO2FT1	HO2S fuel trim (RH)	—
RO2FT2	HO2S fuel trim (LH)	—
RPM	Engine speed	RPM
SC_CANCEL	Speed control cancel switch	Inactive/Active
SC_OFF	Cruise control OFF switch	Inactive/Active
SC_ON	Cruise control ON switch	Inactive/Active
SC_RES	Cruise resume switch	Inactive/Active
SC_SET-	Cruise coast switch	Inactive/Active
SC_SET+	Cruise set/acceleration switch	Inactive/Active
SCCS	Speed control command switch	V
SHRTFT1	Short term fuel trim (RH)	%
SHRTFT12	Short term fuel trim (HO2S) (RH)	%
SHRTFT2	Short term fuel trim (LH)	%
SHRTFT22	Short term fuel trim (HO2S) (LH)	%
SPARKADV	Ignition timing	°
TIRESIZE	Tire revolution per mile	—
TP REL	Relative throttle position	%
TP1	TP sensor No.1	%
TP1	TP sensor No.1	V
TP2	TP sensor No.2	%
TP2	TP sensor No.2	V
VPWR	Battery voltage	V
VSS	Vehicle speed	KPH
VT ACT1	Actual valve timing (RH)	°
VT ACT2	Actual valve timing (LH)	°
VT DIFF1	Difference between target and actual valve timing (RH)	°
VT DIFF2	Difference between target and actual valve timing (LH)	°
VT DUTY1	Oil control valve duty value (RH)	%
VT DUTY2	Oil control valve duty value (LH)	%
VT_DSD	Desired intake camshaft position	°

Diagnostic Monitoring Test Results 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 initial screen of the M-MDS.

• When using the IDS (laptop PC)

1. Select “Powertrain”.

2. Select “OBD Test Modes”.

3. Select “Mode 6 On-Board Test Results”.

• When using the PDS (Pocket PC)

1. Select “OBDII Modes”.

2. Select “Mode 6 On-Board Test Results”.

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

Active Command Modes 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 initial 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 simulation items from the PID table.

4. Perform the simulation function, inspect the operations for each parts.

• If there is no operation sound from the relay, motor, and solenoid after the simulation function 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.