3-36 ENGINE CONTROL SYSTEM
INSPECTION FOR ECM CIRCUIT VOLTAGE
ECM cannot be bench checked. It is strictly prohibited
to connect any tester (voltmeter or ohmmeter) to an
ECM separated from the engine wiring harness.
\ 09930-89950 : 44-pin test cord
09930-99320 : Digital tester
U Tester range :
V (DC voltage)
1. Connect 44-pin test cord between ECM and wire harness
as shown in figure.
2. Turn ignition switch ON.
3. Connect the tester probe - (Black) to body ground, and
measure voltage according to “CIRCUIT VOLTAGE TABLE”.
ECM
44-pin test cord
(Black connector)
(White connector)
Wire harness
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