Suzuki WagonR+ RB310 Service Manual page 1762

Fig. A
Fig. B
TERMINAL ARRANGEMENT OF ECM COUPLER (VIEWED FROM HARNESS SIDE)
E21
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 dis-
connected from it.
Voltage Check
1) Remove ECM (1) from vehicle.
2) Connect ECM (1) couplers to ECM.
3) Check voltage at each terminal of couplers connected.
Refer to next page and "INSPECTION OF ECM AND ITS CIR-
CUIT" in Section 6E1.
NOTE:
As each terminal voltage is affected by the battery voltage,
confirm that it is 11 V or more when ignition switch is ON.
E23
AIR CONDITIONING (OPTIONAL) 1B-3
a. To "A / C 10 A" fuse in
circuit fuse box
b. To "HEATER 25 A"
fuse in circuit fuse box
c. To "IG COIL 15 A"
fuse in circuit fuse box
d. To "FI 20 A" fuse in
main fuse box
e. To "RDTR 30 A"
fuse in main fuse box
1. A / C switch
2. Dual pressure switch
3. Blower fan motor relay
4. Blower fan motor
5. Blower fan motor resistor
6. Blower fan switch
7. A / C evaporator thermistor
8. ECT sensor
9. Compressor relay
10. Compressor
11. Main relay
12. Radiator (and condenser)
cooling fan motor relay
13. Radiator (and condenser)
cooling fan motor
14. ECM
E22