Engine Control Unit - Mazda 626 MX-6 Workshop Manual

1988
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ENGINE CONTROL UNIT

Engine Signal Monitor (49 9200 162) and Adapter (49 9200 163).
The Engine Signal Monitor (49 9200 162) was developed to check the control unit terminal voltages.
This monitor easily inspects the individual terminal voltages through selection of the monitor switch.
How to Use the Engine Signal Monitor
1. Connect the Engine Signal Monitor (49 9200 162) between the engine control unit and the en­
gine harness using the adapter (49 9200 163).
2. Turn the selector switch and monitor switch to select the terminal number.
3. Check the terminal voltage.
Caution
Never apply voltage to terminals A and B.
Adapter harness
Selector switch
Monitor switch
Control unit
term inal number
CONTROL SYSTEM
49 9200 163
Engine wiring harness'
. I n ...
ENGINE SIGNAL MONITOR
^
0
- * V
O -
20
V
©
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mazoa
maoe in JAPAN
4B
Term inals
(A and B)
86U04A-171
4B—103

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