Mazda MX-6 1998, Workshop Manual, Page: 1264 / 1282

INSTRUMENTATION/DRIVER INFO.
OIL PRESSURE SWITCH INSPECTION
1. Verify that the oil pressure warning light
illuminates when the ignition switch is turned to
ON.
2. Verify that the oil pressure warning light goes off
when the engine is started.
3. If the oil pressure warning light does not illuminate
or remains illuminated, inspect the oil pressure
warning light bulb and related wiring harness.
W 6 U 9 2 2 W 0 6
4. If the oil pressure warning light bulb and related
wiring harness are normal, inspect the oil
pressure. (Refer to 01-11 OIL PRESSURE
INSPECTION.)
5. If the oil pressure is normal, replace the oil
pressure switch. (Refer to 01-11 OIL PRESSURE
INSPECTION.)
W ATE R T E M P E R A T U R E S E N D E R U N IT
W $ U 9 2 2 W A E
W A T E R T E M P E R A T U R E S E N D E R U N IT
W 6 U 9 2 2 W A 4
W 6 U 9 2 2 W 0 7
WATER TEMPERATURE SENDER UNIT REMOVAL
1. Disconnect the negative battery cable.
2. Disconnect the water temperature sender unit
connector.
3. Remove the water temperature sender unit.
WATER TEMPERATURE SENDER UNIT INSTALLATION
1. Apply sealant from the third thread to the top
thread.
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2. Install the water temperature sender unit.
Tightening torque
11.8— 17.6 N-m
{120— 180 kgf cm, 105— 156 in lbf}
3. Connect the water temperature sender unit
connector.
4. Connect the negative battery cable.
WATER TEMPERATURE SENDER UNIT INSPECTION
1. Remove the water temperature sender unit.
2. Place the sender unit in a container of water.
3. Heat the water gradually.
4. Using an ohmmeter, measure and verify that the
resistance between terminal of the sender unit
and the sender unit body is as shown below.
W ater te m p e ra tu re (*C { ” F}) R esistance (A)
49.8— 50.2(121.7— 122.3)
189.4— 259.6
W 6 U 9 2 2 W 0 9
W6U922WA6
0 9 -2 2 -7