PCM INSPECTION [MZ-CD 1.4 DI Turbo]

id0140b8802500

Not Using the M-MDS

Note

• The PCM terminal voltage can vary with conditions when measuring and changes due to age deterioration on the vehicle, causing false diagnosis. Therefore a comprehensive inspection of the input and output systems, and the PCM is necessary to determine where the malfunction occurs.

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PCM terminal voltage table (Reference)

Terminal

Signal name

Connected to

Measurement condition

Voltage (V)

Inspection item(s)

1A

CAN_H

Controller area network (high)

Because this terminal is for CAN, determination by terminal voltage is not possible.

•  Related wiring harness

1B

CAN_L

Controller area network (low)

Because this terminal is for CAN, determination by terminal voltage is not possible.

•  Related wiring harness

1C

ECT

ECT sensor

Engine coolant temperature:30°C {86°F}

Approx. 2.6

•  Related wiring harness

•  ECT sensor

Engine coolant temperature:70°C {158°F}

Approx. 1.1

1D

—

—

—

—

—

—

1E

ECT sensor ground

ECT sensor

Under any condition

Below 1.0

•  Related wiring harness

•  ECT sensor

1F

MAF sensor ground

MAF sensor

Under any condition

Below 1.0

•  Related wiring harness

•  MAF sensor

1G

IAT

IAT sensor No.2

Ignition switch on

IAT 30 °C {86 °F}

Approx. 1.9

•  Related wiring harness

•  IAT sensor No.2

IAT 40 °C {104 °F}

Approx. 1.4

1H

—

—

—

—

—

—

1I

MAF

MAF/IAT sensor

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  MAF/IAT sensor

1J

Ignition switch

Ignition switch

Ignition switch on

B+

1K

Cooling fan relay No.3

Cooling fan relay No.3

Cooling fan relay No.3 operating

Below 1.0

•  Related wiring harness

•  Cooling fan relay No.3

Cooling fan relay No.3 not operating

B+

1L

Main relay control

Main relay

Ignition switch on

Approx. 0.9

•  Related wiring harness

•  Main relay

1M

—

—

—

—

—

—

1N

IAT sensor No.2 ground

IAT sensor No.2

Under any condition

Below 1.0

•  Related wiring harness

•  IAT sensor No.2

1O

Glow plug relay

Glow plug relay

Glow plug relay operating

Below 1.0

•  Related wiring harness

•  Glow plug relay

Glow plug relay not operating

B+

1P

—

—

—

—

—

—

1Q

—

—

—

—

—

—

1R

—

—

—

—

—

—

1S

Cooling fan relay No.1

Cooling fan relay No.1

Cooling fan relay No.1 operating

Below 1.0

•  Related wiring harness

•  Cooling fan relay No.1

Cooling fan relay No.1 not operating

B+

1T

—

—

—

—

—

—

1U

—

—

—

—

—

—

1V

—

—

—

—

—

—

1W

A/C relay

A/C relay

Idle

Refrigerant pressure switch on

Below 1.0

•  Related wiring harness

•  A/C relay

Refrigerant pressure switch off

B+

1X

—

—

—

—

—

—

1Y

Ground

Body ground

Under any condition

Below 1.0

•  Related wiring harness

1Z

—

—

—

—

—

—

1AA

Fuel pressure ragulator

Fuel pressure ragulator

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel pressure ragulator

1AB

Fuel metering valve

Fuel metering valve

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel metering valve

1AC

Ground

Body ground

Under any condition

Below 1.0

•  Related wiring harness

1AD

—

—

—

—

—

—

1AE

—

—

—

—

—

—

1AF

—

—

—

—

—

—

2A

—

—

—

—

—

—

2B

—

—

—

—

—

—

2C

—

—

—

—

—

—

2D

—

—

—

—

—

—

2E

—

—

—

—

—

—

2F

—

—

—

—

—

—

2G

—

—

—

—

—

—

2H

—

—

—

—

—

—

2I

MAP sensor supply

MAP sensor

Ignition switch on

Approx. 5

•  Related wiring harness

•  MAP sensor

2J

—

—

—

—

—

—

2K

CKP sensor ground

CKP sensor

Ignition switch on

Below 1.0

•  Related wiring harness

•  CKP sensor

2L

CKP

CKP sensor

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  CKP sensor

2M

EGR valve position sensor supply

EGR valve position sensor

Ignition switch on

Approx. 5

•  Related wiring harness

•  EGR valve position sensor

2N

EGR valve position sensor ground

EGR valve

Ignition switch on

Below 1.0

•  Related wiring harness

•  EGR valve

2O

EGR valve position

EGR valve

Idle

Approx. 2.5

Ignition switch on

Approx. 0.9

2P

—

—

—

—

—

—

2Q

Fuel pressure sensor supply

Fuel pressure sensor

Ignition switch on

Approx. 5

•  Related wiring harness

•  Fuel pressure sensor

2R

Fuel pressure sensor ground

Fuel pressure sensor

Ignition switch on

Below 1.0

•  Related wiring harness

•  Fuel pressure sensor

2S

MAP

MAP sensor

Ignition switch on

Approx. 2.4

•  Related wiring harness

•  MAP sensor

2T

Fuel pressure

Fuel pressure sensor

Idle

Approx. 1.0

•  Related wiring harness

•  Fuel pressure sensor

Ignition switch on

Approx. 0.5

2U

—

—

—

—

—

—

2V

—

—

—

—

—

—

2W

MAP sensor ground

MAP sensor

Ignition switch on

Below 1.0

•  Related wiring harness

•  MAP sensor

2X

IAT

MAF/IAT sensor

Ignition switch on

IAT 30 °C {86 °F}

Approx. 1.9

•  Related wiring harness

•  MAF/IAT sensor

IAT 40 °C {104 °F}

Approx. 1.4

2Y

Power supply

Main relay

Ignition switch on

B+

•  Related wiring harness

•  Main relay

2Z

—

—

—

—

—

—

2AA

—

—

—

—

—

—

2AB

—

—

—

—

—

—

2AC

CKP sensor supply

CKP sensor

Ignition switch on

B+

•  Related wiring harness

•  CKP sensor

2AD

—

—

—

—

—

—

2AE

—

—

—

—

—

—

2AF

Fuel temperature

Fuel temperature sensor

Fuel temperature:43°C {109.4°F}

Approx. 1.6

•  Related wiring harness

•  Fuel temperature sensor

Fuel temperature:47°C {116.6°F}

Approx. 1.3

2AG

—

—

—

—

—

—

2AH

—

—

—

—

—

—

2AI

—

—

—

—

—

—

2AJ

—

—

—

—

—

—

2AK

Generator

Generator

Under any condition

Below 1.0

•  Related wiring harness

•  Generator

2AL

Ground

Fuel temperature sensor

Under any condition

Below 1.0

•  Related wiring harness

•  Fuel temperature sensor

2AM

Starter

Starter relay

Ignition switch ON (START) position

B+

•  Related wiring harness

•  Starter relay

Except for Ignition switch ON (START) position

Below 1.0

2AN

—

—

—

—

—

—

2AO

Ground

Body ground

Under any condition

Below 1.0

•  Related wiring harness

2AP

—

—

—

—

—

—

2AQ

EGR valve actuator

EGR valve

Idle

B+

•  Related wiring harness

•  EGR valve

2AR

EGR valve actuator

EGR valve

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

2AS

Ground

Body ground

Under any condition

Below 1.0

•  Related wiring harness

2AT

—

—

—

—

—

—

2AU

Throttle position

Throttle position sensor

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Throttle position sensor

2AV

—

—

—

—

—

—

3A

—

—

—

—

—

—

3B

—

—

—

—

—

—

3C

CMP sensor supply

CMP sensor

Ignition switch on

Approx. 5

•  Related wiring harness

•  CMP sensor

3D

—

—

—

—

—

—

3E

—

—

—

—

—

—

3F

Refrigerant pressure

Refrigerant pressure sensor

Ignition switch on

Approx. 1.3

•  Related wiring harness

•  Refrigerant pressure sensor

Idle

Refrigerant pressure switch on

Approx. 1.5

Refrigerant pressure switch off

Approx. 1.8

3G

Refrigerant pressure sensor ground

Refrigerant pressure sensor

Under any condition

Below 1.0

3H

Refrigerant pressure sensor supply

Refrigerant pressure sensor

Ignition switch on

Approx. 5

3I

CMP

CMP sensor

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  CMP sensor

3J

—

—

—

—

—

—

3K

CMP sensor ground

CMP sensor

Under any condition

Below 1.0

•  Related wiring harness

•  CMP sensor

3L

—

—

—

—

—

—

3M

—

—

—

—

—

—

3N

—

—

—

—

—

—

3O

—

—

—

—

—

—

3P

—

—

—

—

—

—

3Q

—

—

—

—

—

—

3R

APP

APP sensor

Accelerator pedal released

Approx. 3.3

•  Related wiring harness

•  APP sensor

Accelerator pedal depressed

Approx. 8.0

3S

—

—

—

—

—

—

3T

—

—

—

—

—

—

3U

—

—

—

—

—

—

3V

—

—

—

—

—

—

3W

—

—

—

—

—

—

3X

—

—

—

—

—

—

3Y

Brake

Brake switch

Brake pedal released

Below 1.0

•  Related wiring harness

•  Brake switch

Brake pedal depressed

B+

3Z

—

—

—

—

—

—

3AA

—

—

—

—

—

—

3AB

—

—

—

—

—

—

3AC

Glow plug relay monitor

Glow plug relay

Ignition switch on

Approx. 0.5

•  Related wiring harness

•  Glow plug relay

Idle

B+

3AD

Oil pressure

Oil pressure switch

Ignition switch on

Below 1.0

•  Related wiring harness

•  Oil pressure switch

Idle

B+

3AE

—

—

—

—

—

—

3AF

—

—

—

—

—

—

3AG

—

—

—

—

—

—

3AH

—

—

—

—

—

—

3AI

—

—

—

—

—

—

3AJ

Power supply

Main relay

Ignition switch on

B+

•  Related wiring harness

•  Main relay

3AK

—

—

—

—

—

—

3AL

—

—

—

—

—

—

3AM

Power supply

Main relay

Ignition switch on

B+

•  Related wiring harness

•  Main relay

3AN

Power supply

Main relay

Ignition switch on

B+

•  Related wiring harness

•  Main relay

3AO

Fuel injector No.4 (+)

Fuel injector No.4

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.4

3AP

Fuel injector No.3 (+)

Fuel injector No.3

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.3

3AQ

Fuel injector No.2 (+)

Fuel injector No.2

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.2

3AR

Fuel injector No.1 (+)

Fuel injector No.1

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.1

3AS

Fuel injector No.4 (-)

Fuel injector No.4

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.4

3AT

Fuel injector No.3 (-)

Fuel injector No.3

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.3

3AU

Fuel injector No.2 (-)

Fuel injector No.2

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.2

3AV

Fuel injector No.1 (-)

Fuel injector No.1

Inspect using the wave Profile.

(See Inspection Using An Oscilloscope (Reference).)

•  Related wiring harness

•  Fuel injector No.1

Terminal	Signal name	Connected to	Measurement condition	Voltage (V)	Inspection item(s)
1A	CAN_H	Controller area network (high)	Because this terminal is for CAN, determination by terminal voltage is not possible.	• Related wiring harness
1B	CAN_L	Controller area network (low)	Because this terminal is for CAN, determination by terminal voltage is not possible.	• Related wiring harness
1C	ECT	ECT sensor	Engine coolant temperature:30°C {86°F}	Approx. 2.6	• Related wiring harness • ECT sensor
Engine coolant temperature:70°C {158°F}	Approx. 1.1
1D	—	—	—	—	—	—
1E	ECT sensor ground	ECT sensor	Under any condition	Below 1.0	• Related wiring harness • ECT sensor
1F	MAF sensor ground	MAF sensor	Under any condition	Below 1.0	• Related wiring harness • MAF sensor
1G	IAT	IAT sensor No.2	Ignition switch on	IAT 30 °C {86 °F}	Approx. 1.9	• Related wiring harness • IAT sensor No.2
IAT 40 °C {104 °F}	Approx. 1.4
1H	—	—	—	—	—	—
1I	MAF	MAF/IAT sensor	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • MAF/IAT sensor
1J	Ignition switch	Ignition switch	Ignition switch on	B+
1K	Cooling fan relay No.3	Cooling fan relay No.3	Cooling fan relay No.3 operating	Below 1.0	• Related wiring harness • Cooling fan relay No.3
Cooling fan relay No.3 not operating	B+
1L	Main relay control	Main relay	Ignition switch on	Approx. 0.9	• Related wiring harness • Main relay
1M	—	—	—	—	—	—
1N	IAT sensor No.2 ground	IAT sensor No.2	Under any condition	Below 1.0	• Related wiring harness • IAT sensor No.2
1O	Glow plug relay	Glow plug relay	Glow plug relay operating	Below 1.0	• Related wiring harness • Glow plug relay
Glow plug relay not operating	B+
1P	—	—	—	—	—	—
1Q	—	—	—	—	—	—
1R	—	—	—	—	—	—
1S	Cooling fan relay No.1	Cooling fan relay No.1	Cooling fan relay No.1 operating	Below 1.0	• Related wiring harness • Cooling fan relay No.1
Cooling fan relay No.1 not operating	B+
1T	—	—	—	—	—	—
1U	—	—	—	—	—	—
1V	—	—	—	—	—	—
1W	A/C relay	A/C relay	Idle	Refrigerant pressure switch on	Below 1.0	• Related wiring harness • A/C relay
Refrigerant pressure switch off	B+
1X	—	—	—	—	—	—
1Y	Ground	Body ground	Under any condition	Below 1.0	• Related wiring harness
1Z	—	—	—	—	—	—
1AA	Fuel pressure ragulator	Fuel pressure ragulator	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel pressure ragulator
1AB	Fuel metering valve	Fuel metering valve	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel metering valve
1AC	Ground	Body ground	Under any condition	Below 1.0	• Related wiring harness
1AD	—	—	—	—	—	—
1AE	—	—	—	—	—	—
1AF	—	—	—	—	—	—
2A	—	—	—	—	—	—
2B	—	—	—	—	—	—
2C	—	—	—	—	—	—
2D	—	—	—	—	—	—
2E	—	—	—	—	—	—
2F	—	—	—	—	—	—
2G	—	—	—	—	—	—
2H	—	—	—	—	—	—
2I	MAP sensor supply	MAP sensor	Ignition switch on	Approx. 5	• Related wiring harness • MAP sensor
2J	—	—	—	—	—	—
2K	CKP sensor ground	CKP sensor	Ignition switch on	Below 1.0	• Related wiring harness • CKP sensor
2L	CKP	CKP sensor	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • CKP sensor
2M	EGR valve position sensor supply	EGR valve position sensor	Ignition switch on	Approx. 5	• Related wiring harness • EGR valve position sensor
2N	EGR valve position sensor ground	EGR valve	Ignition switch on	Below 1.0	• Related wiring harness • EGR valve
2O	EGR valve position	EGR valve	Idle	Approx. 2.5
Ignition switch on	Approx. 0.9
2P	—	—	—	—	—	—
2Q	Fuel pressure sensor supply	Fuel pressure sensor	Ignition switch on	Approx. 5	• Related wiring harness • Fuel pressure sensor
2R	Fuel pressure sensor ground	Fuel pressure sensor	Ignition switch on	Below 1.0	• Related wiring harness • Fuel pressure sensor
2S	MAP	MAP sensor	Ignition switch on	Approx. 2.4	• Related wiring harness • MAP sensor
2T	Fuel pressure	Fuel pressure sensor	Idle	Approx. 1.0	• Related wiring harness • Fuel pressure sensor
Ignition switch on	Approx. 0.5
2U	—	—	—	—	—	—
2V	—	—	—	—	—	—
2W	MAP sensor ground	MAP sensor	Ignition switch on	Below 1.0	• Related wiring harness • MAP sensor
2X	IAT	MAF/IAT sensor	Ignition switch on	IAT 30 °C {86 °F}	Approx. 1.9	• Related wiring harness • MAF/IAT sensor
IAT 40 °C {104 °F}	Approx. 1.4
2Y	Power supply	Main relay	Ignition switch on	B+	• Related wiring harness • Main relay
2Z	—	—	—	—	—	—
2AA	—	—	—	—	—	—
2AB	—	—	—	—	—	—
2AC	CKP sensor supply	CKP sensor	Ignition switch on	B+	• Related wiring harness • CKP sensor
2AD	—	—	—	—	—	—
2AE	—	—	—	—	—	—
2AF	Fuel temperature	Fuel temperature sensor	Fuel temperature:43°C {109.4°F}	Approx. 1.6	• Related wiring harness • Fuel temperature sensor
Fuel temperature:47°C {116.6°F}	Approx. 1.3
2AG	—	—	—	—	—	—
2AH	—	—	—	—	—	—
2AI	—	—	—	—	—	—
2AJ	—	—	—	—	—	—
2AK	Generator	Generator	Under any condition	Below 1.0	• Related wiring harness • Generator
2AL	Ground	Fuel temperature sensor	Under any condition	Below 1.0	• Related wiring harness • Fuel temperature sensor
2AM	Starter	Starter relay	Ignition switch ON (START) position	B+	• Related wiring harness • Starter relay
Except for Ignition switch ON (START) position	Below 1.0
2AN	—	—	—	—	—	—
2AO	Ground	Body ground	Under any condition	Below 1.0	• Related wiring harness
2AP	—	—	—	—	—	—
2AQ	EGR valve actuator	EGR valve	Idle	B+	• Related wiring harness • EGR valve
2AR	EGR valve actuator	EGR valve	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)
2AS	Ground	Body ground	Under any condition	Below 1.0	• Related wiring harness
2AT	—	—	—	—	—	—
2AU	Throttle position	Throttle position sensor	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Throttle position sensor
2AV	—	—	—	—	—	—
3A	—	—	—	—	—	—
3B	—	—	—	—	—	—
3C	CMP sensor supply	CMP sensor	Ignition switch on	Approx. 5	• Related wiring harness • CMP sensor
3D	—	—	—	—	—	—
3E	—	—	—	—	—	—
3F	Refrigerant pressure	Refrigerant pressure sensor	Ignition switch on	Approx. 1.3	• Related wiring harness • Refrigerant pressure sensor
Idle	Refrigerant pressure switch on	Approx. 1.5
Refrigerant pressure switch off	Approx. 1.8
3G	Refrigerant pressure sensor ground	Refrigerant pressure sensor	Under any condition	Below 1.0
3H	Refrigerant pressure sensor supply	Refrigerant pressure sensor	Ignition switch on	Approx. 5
3I	CMP	CMP sensor	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • CMP sensor
3J	—	—	—	—	—	—
3K	CMP sensor ground	CMP sensor	Under any condition	Below 1.0	• Related wiring harness • CMP sensor
3L	—	—	—	—	—	—
3M	—	—	—	—	—	—
3N	—	—	—	—	—	—
3O	—	—	—	—	—	—
3P	—	—	—	—	—	—
3Q	—	—	—	—	—	—
3R	APP	APP sensor	Accelerator pedal released	Approx. 3.3	• Related wiring harness • APP sensor
Accelerator pedal depressed	Approx. 8.0
3S	—	—	—	—	—	—
3T	—	—	—	—	—	—
3U	—	—	—	—	—	—
3V	—	—	—	—	—	—
3W	—	—	—	—	—	—
3X	—	—	—	—	—	—
3Y	Brake	Brake switch	Brake pedal released	Below 1.0	• Related wiring harness • Brake switch
Brake pedal depressed	B+
3Z	—	—	—	—	—	—
3AA	—	—	—	—	—	—
3AB	—	—	—	—	—	—
3AC	Glow plug relay monitor	Glow plug relay	Ignition switch on	Approx. 0.5	• Related wiring harness • Glow plug relay
Idle	B+
3AD	Oil pressure	Oil pressure switch	Ignition switch on	Below 1.0	• Related wiring harness • Oil pressure switch
Idle	B+
3AE	—	—	—	—	—	—
3AF	—	—	—	—	—	—
3AG	—	—	—	—	—	—
3AH	—	—	—	—	—	—
3AI	—	—	—	—	—	—
3AJ	Power supply	Main relay	Ignition switch on	B+	• Related wiring harness • Main relay
3AK	—	—	—	—	—	—
3AL	—	—	—	—	—	—
3AM	Power supply	Main relay	Ignition switch on	B+	• Related wiring harness • Main relay
3AN	Power supply	Main relay	Ignition switch on	B+	• Related wiring harness • Main relay
3AO	Fuel injector No.4 (+)	Fuel injector No.4	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.4
3AP	Fuel injector No.3 (+)	Fuel injector No.3	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.3
3AQ	Fuel injector No.2 (+)	Fuel injector No.2	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.2
3AR	Fuel injector No.1 (+)	Fuel injector No.1	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.1
3AS	Fuel injector No.4 (-)	Fuel injector No.4	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.4
3AT	Fuel injector No.3 (-)	Fuel injector No.3	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.3
3AU	Fuel injector No.2 (-)	Fuel injector No.2	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.2
3AV	Fuel injector No.1 (-)	Fuel injector No.1	Inspect using the wave Profile. (See Inspection Using An Oscilloscope (Reference).)	• Related wiring harness • Fuel injector No.1

Inspection Using An Oscilloscope (Reference)

MAF sensor signal

am2zzw00002948

PCM terminals

• 1I (+)—Body ground (–)

Oscilloscope setting

• 2 V/DIV (Y), 100 us/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Fuel pressure ragulator signal

am2zzw00002949

PCM terminals

• 1AA (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Fuel metering valve signal

am2zzw00002950

PCM terminals

• 1AB (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

CKP sensor signal

am2zzw00002951

PCM terminals

• 2L (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

EGR valve actuator signal

am2zzw00002952

PCM terminals

• 2AR (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 400 us/DIV (X), DC range

Vehicle condition

• Idle after warm-up

TP sensor signal

am2zzw00002953

PCM terminals

• 2AU (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

CMP sensor signal

am2zzw00002954

PCM terminals

• 3I (+)—Body ground (–)

Oscilloscope setting

• 5 V/DIV (Y), 20 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Fuel injector (+) signal

am2zzw00003096

PCM terminals

• No.1: 3AR (+)—Body ground (–)

• No.2: 3AQ (+)—Body ground (–)

• No.3: 3AP (+)—Body ground (–)

• No.4: 3AO (+)—Body ground (–)

Oscilloscope setting

• 50 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Fuel injector (-) signal

am2zzw00003097

PCM terminals

• No.1: 3AV (+)—Body ground (–)

• No.2: 3AU (+)—Body ground (–)

• No.3: 3AT (+)—Body ground (–)

• No.4: 3AS (+)—Body ground (–)

Oscilloscope setting

• 50 V/DIV (Y), 2 ms/DIV (X), DC range

Vehicle condition

• Idle after warm-up

Using the M-MDS

• PIDs for the following parts are not available on this model. Go to the appropriate part inspection page.

― CMP sensor (See CAMSHAFT POSITION (CMP) SENSOR INSPECTION [MZ-CD 1.4 DI Turbo].)

― Main relay (See RELAY INSPECTION [MZ-CD 1.4 DI Turbo, MZ-CD 1.6 (Y6)].)

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

am2zzw00003091

2. Turn the ignition switch to the ON position.

3. Measure the PID value.

• If the PID value is not within the specification, follow the instructions in the Action column.

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.

• The active command items that are used in the “ENGINE CONTROL SYSTEM OPERATION INSPECTION” are as follows.

― ACCS, ALTF, EGRP, FAN1, FAN2, GPC, INJ_1, INJ_2, INJ_3, INJ_4

PID monitor table (reference)

—: Not applicable

Item (Definition)	Unit/ Condition				Condition/Specification (Reference)	Inspection item(s)	PCM terminal
AC_PRES	V				A/C switch ON: Approx. 1.9 V A/C switch OFF: Approx. 1.7 V	• A/C pressure sensor	3F
AC_PRES	Pa				A/C switch ON: Approx. 1.1 MPa A/C switch OFF: Approx. 1.7 MPa	• A/C pressure sensor	3F
AC_REQ	Off/On				A/C switch ON: On A/C switch OFF: Off	• A/C relay	1W
ACCS	Off/On				A/C switch ON: On A/C switch OFF: Off	• Inspect following PIDs: AC_REQ, APP1, APP2, ECT, RPM	1W
ALTF	%				Idle: Approx. 35—38 % Ignition switch ON: 0 %	• Inspect following PIDs: IAT, ECT, RPM, VPWR	2AK
APP1	V				Accelerator pedal released: Approx. 0.39 V Accelerator pedal depressed: Approx. 3.3 V	• APP sensor	3R
APP1	%				Accelerator pedal released: 0 % Accelerator pedal depressed: 99.6 %		3R
APP2	%				Accelerator pedal released: 0 % Accelerator pedal depressed: 99.6 %		—
BARO	Pa				Indicate Barometric pressure.	• BARO sensor	—
BAT	°C		°F		Indicates the Intake air temperature.	• IAT sensor No.2	1G
BAT_V	V				BAT 40 °C {104 °F}: Approx. 2.7 V BAT 45 °C {113 °F}: Approx. 2.5 V BAT 60 °C {140 °F}: Approx. 1.8 V	• IAT sensor No.2	1G
BOO	Off/On				Brake pedal released: Off Brake pedal depressed: On	• Brake switch	3Y
BPA	Off/On				Brake pedal released: Off Brake pedal depressed: On	• BPP switch	—
CPP	Off/On				Clutch pedal released: Off Clutch pedal depressed: On	• CPP switch	—
ECT	V				ECT 30 °C {86 °F}: Approx. 2.6 V ECT 50 °C {122 °F}: Approx. 1.7 V ECT 60 °C {140 °F}: Approx. 1.4 V ECT 80 °C {176 °F}: Approx. 0.8 V	• ECT senosr	1C
ECT	°C		°F		Indicates the engine coolant temperature.	• ECT senosr	1C
EGRP	V				Idle: Approx. 2 V Ignition switch ON: Approx. 0.96 V	• EGR valve	2O
EGRP	%				Idle: Approx. 40 % Ignition switch ON: Approx. 0 %	• EGR valve	2O
ENG_TORQ	N·m				Indicates the engine torque	—	—
ETC_DSD	%				Idle: Approx. 5 % Ignition switch ON: Approx. 85.3 %	• Throttle position sensor	2AU
FAN1	Off/On				Cooling fan relay No.1 opening: On Cooling fan relay No.1 not opening: Off	• Cooling fan raley No.1	1S
FAN2	Off/On				Cooling fan relay No.3 opening: On Cooling fan relay No.3 not opening: Off	• Cooling fan raley No.3	1K
FLI	%				Fuel level is display	—	—
FLT	°C		°F		Fuel temperature is display	• Fuel temperature seonsor	2AF
FRP	V				Idle: Approx. 1.1 V Ignition switch ON: Approx. 0.5 V	• Fuel pressure sensor	2T
FRP	Pa				Idle: Approx. 25 MPa Ignition switch ON: Approx. 2 MPa	• Fuel pressure sensor	2T
FUEL_PCV	%				Idle: Approx. 13 % Ignition switch ON: Approx. 0 %	• Fuel pressure regulator	1AA
FUEL_PCV	A				Idle: Approx. 200 mA Ignition switch ON: Approx. 230 mA	• Fuel pressure regulator	1AA
FUEL_VCV	%				Idle: Approx. 23 % Ignition switch ON: Approx. 0 %	• Fuel metering valve	1AB
GPC	Off/On				Glow plug relay opening: On Glow plug relay not opening: Off	• Glow plug relay	1O
GPC_MON	Off/On				Glow plug relay opening: On Glow plug relay not opening: Off	• Glow plug relay	3AC
IAT	V				29 °C {84 °F}: Approx. 2.2 V 33 °C {91 °F}: Approx. 1.8 V 44 °C {111 °F}: Approx. 1.5 V	• IAT sensor	2X
IAT	°C		°F		Intake air temperature is display	• IAT sensor	2X
INJ_1	Off/On				Idle: On Ignition switch ON: Off	• Fuel injectior No.1	3AR
INJ_2	Off/On				Idle: On Ignition switch ON: Off	• Fuel injectior No.2	3AQ
INJ_3	Off/On				Idle: On Ignition switch ON: Off	• Fuel injectior No.3	3AP
INJ_4	Off/On				Idle: On Ignition switch ON: Off	• Fuel injectior No.4	3AO
INJ1_COR	—				Cylinder Balancing Offset Injector 1	• Fuel injectior No.1	3AR
INJ2_COR	—				Cylinder Balancing Offset Injector 2	• Fuel injectior No.2	3AQ
INJ3_COR	—				Cylinder Balancing Offset Injector 3	• Fuel injectior No.3	3AP
INJ4_COR	—				Cylinder Balancing Offset Injector 4	• Fuel injectior No.4	3AO
IVS	Idle / Off Idle				Idle: Idle Except above: Off idle	• APP sensor	—
LOW_OIL	Yes/No				Engine oil level status is displayed.	—	—
MAF	g/sec				Idle: 6 g/sec	• MAF sensor	1I
MAP	Pa	Bar		psi	Manifold absolute pressure is displayed.	• MAP sensor	2S
MIL_DIS	Km				Indicate the travelled distance since the MIL illuminated.	—	—
RPM	RPM				Approx. 750 rpm	• CKP sensor	2L
SEGRP DSD	%				Indicate the EGR valve position desired.	• EGR valve	2O
VPWR	V				Ignition switch ON: B+	• Battery • Main relay	1L
VSS	KPH				Vehicle speed is displayed.	—	—