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A/C SYSTEM INSPECTION OF ECM AND ITS
CIRCUITS
ECM and its circuits can be checked at ECM wiring couplers by
measuring voltage.
CAUTION:
ECM cannot be checked by itself. It is strictly prohibited
to connect voltmeter or ohmmeter to ECM with couplers
disconnected from it.
VOLTAGE CHECK
1) Remove ECM from vehicle by referring to "ECM (PCM)
REMOVAL AND INSTALLATION" in Section 6E1.
2) Connect ECM couplers (1) to ECM (2).
3) Check voltage at each terminal of couplers connected.
NOTE:
As each terminal voltage is affected by the battery volt-
age, confirm that it is 11 V or more when ignition switch
is ON position.
[A] : Fig. A
[B] : Fig. B
AIR CONDITIONING (OPTIONAL) 1B-17
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