Radiator Cooling Fan Motor On-Vehicle Inspection; Radiator Cooling Fan Relay Inspection - Suzuki Grand Vitara Service Manual

1F-10 Engine Cooling System:
Radiator Cooling Fan Motor On-Vehicle
Inspection
1) Check main and/or sub fan operation of radiator
cooling fan as follows.
a) Connect battery to main fan motor coupler
(coupler color: black) or sub fan motor coupler
(coupler color: gray) as shown in figure.
b) Check that radiator cooling fan rotates smoothly.
If any abnormality is found, replace fan motor.
Reference: Fan motor specified current at 12
V
Main fan operation: 7.4 – 10.9 A
Sub fan operation: 6.7 – 9.7 A
1. Main fan motor
2. Sub fan motor
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Radiator Cooling Fan Relay Inspection

1) Disconnect negative (–) cable at battery.
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2) Remove radiator cooling fan relay No.1 (1), No.3 (2)
and/or No.2 (3) from relay box.
3) Check radiator cooling fan relay No.1 (1) and No.3
(2) as follows.
a) Check that there is no continuity between
terminals "C" and "D". If there is continuity,
replace relay.
b) Connect battery positive (+) terminal to terminal
"B" of relay.
c) Connect battery negative (–) terminal to terminal
"A" of relay.
d) Check continuity between terminals "C" and "D".
If there is no continuity, replace relay.
4) Check radiator cooling fan relay No.2 (3) as follows.
a) Check that there is no continuity between
terminals "G" or "H" and "F". If there is continuity,
replace relay.
b) Check continuity between terminals "I" and "H". If
there is no continuity, replace relay.
c) Connect battery positive (+) terminal to terminal
"F" of relay.
d) Connect battery negative (–) terminal to terminal
"E" of relay.
e) Check continuity between terminals "G" and "H".
If there is no continuity, replace relay.
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