Radiator Fan Control System - Suzuki Grand Vitara XL-7 Service Manual

1. ECM
2. Radiator fan relay 1 (High)
3. Radiator fan relay 2 (High)
4. Radiator fan relay 3 (Low)
5. Radiator fan motor 1
6. Radiator fan motor 2
7. Double relay
ENGINE AND EMISSION CONTROL SYSTEM (RHZ ENGINE) 6E3-43

RADIATOR FAN CONTROL SYSTEM

System Inspection
WARNING:
Keep hands, tools, and clothing away from engine cooling
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 response to the ECT sensor with
the ignition switch in the "ON" position.
Check system for operation referring to "DTCs P1108, P1109 and
P1519 Diag. Flow Table" in following section.
D For vehicle equipped with single-connector ECM : Section 6
D For vehicle equipped with triple-connector ECM : Section 6-1
If radiator fan fails to operate properly, check relay, radiator fan and
electrical circuit.
Radiator Fan
Inspection
1) Check continuity between each two terminals.
If there is no continuity, replace radiator fan motor.
2) Connect battery (1) to radiator fan motor coupler (2) (black con-
nector for radiator fan motor 1, white connector for radiator fan
motor 2) as shown in figure, then check that the radiator fan mo-
tor operates smoothly.
If radiator fan motor does not operate smoothly, replace motor.