mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 284 > < Component Tests and General Diagnostics|Page 282
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PCM terminals

-

2A(+)-body ground(-)

Oscilloscope setting

-

5 V/DIV (Y), 200 ms/DIV (X), DC range

Vehicle condition

-

Idle (immediately after starting the engine)

HO2S heater control

PCM terminals

-

2B(+)-body ground(-)

Oscilloscope setting

-

5 V/DIV (Y), 1 s/DIV (X), DC range

Vehicle condition

-

Idle (immediately after starting the engine)

OCV control signal

PCM terminals

-

2E(+)-body ground(-)

Oscilloscope setting

-

2 V/DIV (Y), 0.8 ms/DIV (X), DC range

Vehicle condition

-

Idle after warm up

CMP signal

Component Tests and General Diagnostics|Page 284 > < Component Tests and General Diagnostics|Page 282