Chevrolet Spark manuals

Mazda CX-5 Service & Repair Manual: PCM Inspection

Without Using the M-MDS

NOTE:

Terminal voltage table (Reference)



Terminal

Signal

Connected to

Test condition

Voltage (V)

inspection item

1A*1

CAN_2H

CAN system related modules

Because this terminal is for CAN, good/no good judgment by terminal voltage is not possible.

  • Related wiring harness

1B*1

CAN_2L

CAN system related modules

Because this terminal is for CAN, good/no good judgment by terminal voltage is not possible.

  • Related wiring harness

1C

1D

Knocking (–)

KS

Switch the ignition to ON (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter)

Approx. 1.65

  • KS

  • Related wiring harness

1E

1F

1G

1H

Knocking (+)

KS

Switch the ignition to ON (Use digital type voltmeter, because measurement voltage will be detected less than true voltage when using analog type voltmeter)

Approx. 3.38

  • KS

  • Related wiring harness

1I

GND

Sensor shield

Under any condition

Below 1.0

  • Related wiring harness

1J

Electric variable valve timing motor (rotation direction)

Electric variable valve timing motor

(See Electric variable valve timing motor (rotation direction) signal.)

  • Electric variable valve timing motor

  • Related wiring harness

1K*2

Neutral position

Neutral switch

Shift lever is at neutral position

Below 1.0

  • Neutral switch

  • Related wiring harness

Shift lever is not at neutral position

B+

1L*2

Back up light

Back up light switch

Shift lever is at R position

Below 1.0

  • Back up light switch

  • Related wiring harness

Shift lever is not at R position

B+

1M

1N

1O

Electric variable valve timing motor (rotation pulse)

Electric variable valve timing motor

(See Electric variable valve timing motor (rotation pulse) signal.)

  • Electric variable valve timing motor

  • Related wiring harness

1P

Oil pressure

Oil pressure switch

Switch the ignition to ON

Below 1.0

  • Oil pressure switch

  • Related wiring harness

Idle (after warm up)

B+

1Q

1R

1S

1T

Exhaust CMP

Exhaust CMP sensor

(See Exhaust CMP signal.)

  • Exhaust CMP sensor

  • Related wiring harness

1U

1V

1W

A/F

A/F sensor

Idle (after warm up)

Approx. 4.2

  • A/F sensor

  • Related wiring harness

1X

GND

Exhaust CMP sensor

Under any condition

Below 1.0

  • Related wiring harness

1Y

Intake CMP

Intake CMP sensor

(See Intake CMP signal.)

  • Intake CMP sensor

  • Related wiring harness

1Z

1AA

1AB

A/F

A/F sensor

Idle (after warm up): 0 mA

  • A/F sensor

  • Related wiring harness

1AC

GND

Intake CMP sensor

Under any condition

Below 1.0

  • Related wiring harness

1AD

CKP

CKP sensor

(See CKP signal.)

  • CKP sensor

  • Related wiring harness

1AE

Electric variable valve timing driver (diagnostic)

Electric variable valve timing driver

(See Electric variable valve timing driver (diagnostic) signal.)

  • Electric variable valve timing driver

  • Related wiring harness

1AF

Generator output voltage

Generator (terminal P)

(See Generator output voltage.)

  • Generator

  • Related wiring harness

1AG

A/F

A/F sensor

Idle (after warm up)

Approx. 3.48

  • A/F sensor

  • Related wiring harness

1AH

GND

CKP sensor

Under any condition

Below 1.0

  • Related wiring harness

1AI

Purge control

Purge solenoid valve

(See Purge control.)

  • Purge solenoid valve

  • Related wiring harness

1AJ

IGT4

Ignition coil No.4

(See IGT1, IGT2, IGT3, IGT4 control.)

  • Ignition coil No.4

  • Related wiring harness

1AK

ECT (No.1)

ECT sensor No.1

Switch the ignition to ON

ECT 20 °C

{68 °F}

Approx. 3.10

  • ECT sensor No.1

  • Related wiring harness

ECT 40 °C

{104 °F}

Approx. 2.16

ECT 60 °C

{140 °F}

Approx. 1.40

ECT 80 °C

{176 °F}

Approx. 0.87

ECT 100 °C

{212 °F}

Approx. 0.54

1AL

1AM

GND

ECT sensor No.1

Under any condition

Below 1.0

  • Related wiring harness

1AN

Hydraulic variable valve timing control

OCV

(See Hydraulic variable valve timing control signal.)

  • OCV

  • Related wiring harness

1AO

IGT3

Ignition coil No.3

(See IGT1, IGT2, IGT3, IGT4 control.)

  • Ignition coil No.3

  • Related wiring harness

1AP

1AQ

1AR

1AS

Engine oil control

Engine oil solenoid valve

(See Engine oil control signal.)

  • Engine oil solenoid valve

  • Related wiring harness

1AT

IGT2

Ignition coil No.2

(See IGT1, IGT2, IGT3, IGT4 control.)

  • Ignition coil No.2

  • Related wiring harness

1AU

1AV

Ion (No.4)

Ion sensor No.4

Idle (after warm up)

Approx. 4.55

  • Ion sensor No.4

  • Related wiring harness

1AW

1AX

1AY

IGT1

Ignition coil No.1

(See IGT1, IGT2, IGT3, IGT4 control.)

  • Ignition coil No.1

  • Related wiring harness

1AZ

Electric variable valve timing control

Electric variable valve timing driver

(See Electric variable valve timing control signal.)

  • Electric variable valve timing driver

  • Related wiring harness

1BA

Ion (No.3)

Ion sensor No.3

Idle (after warm up)

Approx. 4.55

  • Ion sensor No.3

  • Related wiring harness

1BB

GND

Sensor shield

Under any condition

Below 1.0

  • Related wiring harness

1BC

1BD

1BE

Generator field coil control

Generator

(terminal D)

(See Generator field coil control signal.)

  • Generator

  • Related wiring harness

1BF

Ion (No.2)

Ion sensor No.2

Idle (after warm up)

Approx. 4.55

  • Ion sensor No.2

  • Related wiring harness

1BG

GND

Sensor shield

Under any condition

Below 1.0

  • Related wiring harness

1BH

1BI

1BJ

Constant voltage (Vref)

Fuel pressure sensor

Switch the ignition to ON

Approx. 5.0

  • Related wiring harness

1BK

Ion (No.1)

Ion sensor No.1

Idle (after warm up)

Approx. 4.55

  • Ion sensor No.1

  • Related wiring harness

1BL

GND

Sensor shield

Under any condition

Below 1.0

  • Related wiring harness

1BM

1BN

Constant voltage (Vref)

CKP sensor

Switch the ignition to ON

Approx. 5.0

  • Related wiring harness

1BO

Constant voltage (Vref)

MAP sensor

Switch the ignition to ON

Approx. 5.0

  • Related wiring harness

1BP

TP (No.1)

TP sensor No.1

Switch the ignition to ON

Accelerator pedal released

Approx. 1.11

  • TP sensor No.1

  • Related wiring harness

Accelerator pedal depressed

Approx. 4.59

1BQ

GND

TP sensor No.1, TP sensor No.2

Under any condition

Below 1.0

  • Related wiring harness

1BR

1BS

Constant voltage (Vref)

TP sensor No.1, TP sensor No.2

Switch the ignition to ON

Approx. 5.0

  • Related wiring harness

1BT

1BU

TP (No.2)

TP sensor No.2

Switch the ignition to ON

Accelerator pedal released

Approx. 3.92

  • TP sensor No.2

  • Related wiring harness

Accelerator pedal depressed

Approx. 0.41

1BV

1BW

MAP

MAP sensor

Switch the ignition to ON

Approx. 4.07

  • MAP sensor

  • Related wiring harness

Idle (after warm up)

Approx. 1.34

Racing

(Engine speed: 2,000 rpm)

Approx. 1.05

1BX

GND

MAP sensor, IAT sensor No.2

Under any condition

Below 1.0

  • Related wiring harness

1BY

A/F sensor heater control

A/F sensor heater

(See A/F sensor heater control signal.)

  • A/F sensor heater

  • Related wiring harness

1BZ

GND

GND

Under any condition

Below 1.0

  • Related wiring harness

1CA

Fuel pressure

Fuel pressure sensor

Switch the ignition to ON

Approx. 1.22

  • Fuel pressure sensor

  • Related wiring harness

Idle (after warm up)

Approx. 1.06

1CB

GND

Fuel pressure sensor

Under any condition

Below 1.0

  • Related wiring harness

1CC

Drive-by-wire control (–)

Throttle valve actuator

Switch the ignition to ON

Approx. 10.51

  • Throttle valve actuator

  • Related wiring harness

Idle (after warm up)

B+

1CD

1CE

IAT (No.2)

IAT sensor No.2

Switch the ignition to ON

IAT 20 °C

{68 °F}

Approx. 3.57

  • IAT sensor No.2

  • Related wiring harness

IAT 40 °C

{104 °F}

Approx. 2.70

IAT 60 °C

{140 °F}

Approx. 1.87

1CF

1CG

Drive-by-wire control (+)

Throttle valve actuator

(See Drive-by-wire control (+) signal.)

  • Throttle valve actuator

  • Related wiring harness

1CH

1CI

1CJ

1CK

Battery voltage

Main relay

Switch the ignition to ON

B+

  • Related wiring harness

1CL

GND

GND

Under any condition

Below 1.0

  • Related wiring harness

PCM Configuration (Using Read/Write Function)
NOTE: When performing configuration, it is necessary to read the vehicle specification information from the PCM before replacing it. Connect the M-MDS to the vehicle and perform vehicle ...

PCM Removal/Installation
CAUTION: There are two types of PCM settings. If the incorrect PCM is installed, it could cause interference with engine control. When replacing the PCM, verify the first four digit ...

Other materials:

Oil Pressure Inspection
WARNING: Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled. A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work ...

Shift Pressure Control (Line Pressure Control) [Fw6 A EL, Fw6 Ax EL]
Outline The TCM drives the pressure control solenoid and adjusts the pressure based on the accelerator pedal depression amount, vehicle speed, ATF temperature, and gear shift signal. As a result, line pressure is controlled finely and with high accuracy according to the engine load c ...

Starter Interlock Switch [Skyactiv G 2.0]
Purpose, Function The starter interlock switch mechanism prevents vehicle surge when the engine is started, enhancing safety. The engine cannot be started unless the clutch is depressed. Construction The mechanism is provided with a starter interlock switch on the circuit ...

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