Suzuki Baleno Manual page 906

ENGINE COOLANT TEMPERATURE METER AND SENDER GAUGE
DESCRIPTION OF CIRCUIT
The engine coolant temperature meter is located in the instrument panel and its sender gauge on the inlet man-
ifold. The circuit is as shown below.
The sender gauge shows different resistance values depending on the coolant temperature. This causes a current
flowing through the temperature meter coil to change, controlling the meter pointer. That is, when the coolant tem-
perature rises, the sender gauge resistance is decreased with more current flowing through the meter coil, thus
allowing the meter pointer to move away from the "C" position.
1. Battery
2. Main fuse
3. Ignition switch
4. Junction box
5. Engine coolant temperature meter
6. Engine coolant temperature sensor
(ECT sensor)
7. Engine coolant temperature sender gauge
(in ECT sensor)
8. Thermostat case
9. Joint connector
1. Battery
2. Engine coolant temperature meter
3. Test light (12V, 3.4W)
1. ECT sensor
2. Engine coolant temperature
sender gauge
< 1.3L and 1.6L engine models >
< 1.8L engine model >
INSPECTION
ENGINE COOLANT TEMPERATURE METER
1) Disconnect "P/B" lead wire going to sender gauge installed at
the water outlet cap.
2) Use a bulb (12V 3.4W) in position to ground wire as illustrated.
3) Turn main switch ON. Confirm that bulb is lighted with meter
pointer fluctuating several seconds thereafter.
If meter is faulty, replace.
SENDER GAUGE (IN ECT SENSOR)
Warm up sender gauge. Thus make sure its resistance is de-
creased with increase of its temperature.
Temperature
50 5C (122 5F)
80 5C (176 5F)
100 5C (212 5F)
BODY ELECTRICAL SYSTEM 8-9
Resistance
190 – 260 W
55 – 65 W
25 – 35 W