Mazda 6. Manual - part 131

CONTROL SYSTEM 

F–48–12

CMP sensor signal
L3 engine (+)
PCM terminals

• 2J(+)—2H(–)

Oscilloscope setting

• 1 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

LF, L8 engine (+)
PCM terminals

• 2J(+)—2H(–)

Oscilloscope setting

• 1 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

L3 engine (–)
PCM terminals

• 2M(+)—2H(–)

Oscilloscope setting

• 1 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

LF, L8 engine (–)
PCM terminals

• 2M(+)—2H(–)

Oscilloscope setting

• 1 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

0 V

A6A3940W012

0 V

A6A3940W013

0 V

A6A3940W014

0 V

A6A3940W015

CONTROL SYSTEM 

F–48–13

F

Input/turbine speed sensor signal
PCM terminals

• 3G(+)—2AC(–)

Oscilloscope setting

• 500 mV/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

Pressure control solenoid signal
(–)
PCM terminals

• 3V(+)—1C(–)

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

(+)
PCM terminals

• 3Y(+)—1C(–)

Oscilloscope setting

• 5 V/DIV (Y), 1 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

HO2S (front) heater control signal
PCM terminals

• 4A(+)—1C(–)

Oscilloscope setting

• 4 V/DIV (Y), 200 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

0 V

A6A3940W016

0 V

A6A3940W017

0 V

A6A3940W018

0 V

A6A3940W019

CONTROL SYSTEM 

F–48–14

IAC signal
(+)
PCM terminals

• 4G(+)—1C(–)

Oscilloscope setting

• 2 V/DIV (Y), 0.4 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

(–)
PCM terminals

• 4J(+)—1C(–)

Oscilloscope setting

• 2 V/DIV (Y), 0.4 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

OCV control signal
PCM terminals

• 4J(+)—1C(–)

Oscilloscope setting

• 2 V/DIV (Y), 0.8 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

Purge control signal
PCM terminals

• 4U(+)—1C(–)

Oscilloscope setting

• 1 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

End Of Sie

0 V

A6A3940W020

0 V

A6A3940W021

0 V

A6A3940W022

0 V

A6A3940W023

CONTROL SYSTEM 

F–49

F

FFUEL AND EMISSION CONTROL SYSTEMS

Fuel injection control
PCM terminals

• Fuel Injection No.1: 4Z(+)—1C(–)

• Fuel Injection No.1: 4W(+)—1C(–)

• Fuel Injection No.1: 4AD(+)—1C(–)

• Fuel Injection No.1: 4AA(+)—1C(–)

Oscilloscope setting

• 4 V/DIV (Y), 10 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

Shift solenoid C control
PCM terminals

• 4Y(+)—1C(–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

Shift solenoid A control
PCM terminals

• 4AB(+)—1C(–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

Shift solenoid B control
PCM terminals

• 4AC(+)—1C(–)

Oscilloscope setting

• 5 V/DIV (Y), 5 ms/DIV (X), DC range

Vehicle condition

• Idle after warm up (engine speed approx. 650 

rpm [MTX] or 700 rpm [ATX], no load, P/S off, A/C 
off)

End Of Sie

CONTROL SYSTEM

0 V

A6A3940W024

0 V

A6A3940W025

0 V

A6A3940W026

0 V

A6A3940W027