AIR CONDITIONING (OPTIONAL) 1B-7
Fig. A
Fig. B
AC1-15
INSPECTION OF A/C CONTROLLER AND ITS
CIRCUITS
CAUTION:
A/C controller and ECM cannot be checked by itself.
It is strictly prohibited to connect voltmeter or ohmmeter to
A/C controller and ECM with couplers disconnected from it.
A/C system can be checked at A /C controller (1) and ECM wiring
couplers by measuring voltage.
Voltage Check
NOTE:
For ECM terminal voltage check, refer to “INSPECTION OF
ECM (PCM) AND ITS CIRCUITS” in Section 6.
1) Remove A/C controller (1) from vehicle by referring to “RE-
MOVAL” under “A/C CONTROLLER” in this section.
2) Connect A/C controller couplers to A/C controller (1).
3) Check each terminal voltage with couplers connected by refer-
ring to after-mensioned “A/C CONTROLLER VOLTAGE VAL-
UES TABLE” and “ECM VOLTAGE VALUES TABLE”.
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