Inspection Of A/C Controller And Its Circuits - Suzuki sq-416-420-625 Service Manual

1B-18 AIR CONDITIONING (OPTIONAL)
Fig. A
Fig. B
Fig. C
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 controller (1) and its circuits can be checked at A/C controller
wiring couplers by measuring voltage.
Voltage Check
1) Remove A/C controller (1) from vehicle (refer to "A/C CON-
TROLLER REMOVAL" in this section).
2) Remove ECM (2) from vehicle.
3) Connect A/C controller couplers to A/C controller and connect
ECM couplers to ECM.
4) Check each terminal voltage with couplers connected by refer-
ing to the A/C CONTROLLER VOLTAGE VALUES TABLE the
later.
C51-3-6 For G16
and J20 engines
C51-3-25 For
H25 engine