Suzuki 2000 Grand Vitara SQ625 Service Manual page 110

6-106 ENGINE DIAGNOSIS (G16 / J20 ENGINES)
TABLE B-6 A/C CONDENSER FAN MOTOR RELAY CONTROL SYSTEM INSPECTION
(IF EQUIPPED)
WIRING DIAGRAM
To ignition
switch
Rear def
fuse in J/B
Main
fuse
INSPECTION
WARNING:
Keep hands, tools, and clothing away from A/C condenser fan to help prevent personal injury. This fan
is electric and can come on whether or not the engine is running. The fan can start automatically in re-
sponse to the ECT sensor with the ignition switch in the "ON" position.
STEP
1 1) Check DTC referring to "DTC Check"
in this section.
Is there any malfunction DTC?
2 1) Check A/C condenser fan for operation.
A/C condenser fan should be operated
under following condition A or B only.
A: When engine is running and A/C
is operating.
B: When engine coolant temp. is 113_C,
235_F or more with ignition switch ON.
Is check result as specified?
3 1) Remove ECM (PCM) cover.
2) Check voltage between E61-22
terminal of ECM (PCM) connected
coupler and ground.
Other than conditions
A and B in Step 2:
Under condition A or
B in Step 2:
Is check result as specified?
A/C
fuse
ACTION
10 – 14 V
0 – 1 V
A/C condenser
fan motor relay
YES
Go to applicable
DTC Diag. Flow Table.
This system is in good
condition.
Fuse blown, "R", "R/B" or
"R/Bl" circuit open,
malfunction of condenser
fan motor or relay.
A/C
condenser
fan motor
NO
Go to Step 2.
Go to Step 3.
"Y/G" circuit open,
"Y/Bl" circuit open or
short, or relay
malfunction.
If above are OK, substi-
tute a known-good ECM
(PCM) and recheck.