Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDAIHATSU1991CHARADE L4-1295CC 1.3LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCOOLANT TEMPERATURE SENSOR/SWITCH (FOR COMPUTER)TESTING AND INSPECTION
1991 Daihatsu Charade L4-1295cc 1.3L
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
1991 Daihatsu Charade L4-1295cc 1.3LSECTION Testing and Inspection
1. Remove water temperature sensor.
2. Place sensor into water.
3. Measure water temperature and water temperature sensor resistance.
4. Ensure resistance is within specification shown in Fig. 82.
5. Ensure no continuity exists between each terminal of the water temperature sensor and the sensor body.
6. If results of test show negative, replace sensor.
7. Perform Water Temperature Sensor circuit test.
2. Place sensor into water.
3. Measure water temperature and water temperature sensor resistance.
4. Ensure resistance is within specification shown in Fig. 82.
Fig. 82 Water Temperature Sensor Resistance Chart:
5. Ensure no continuity exists between each terminal of the water temperature sensor and the sensor body.
6. If results of test show negative, replace sensor.
7. Perform Water Temperature Sensor circuit test.
Fig. 57 ECU System Diagnosis, Water Temperature Sensor Check:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.