Note: The illustration shows a left-hand drive model; the location on the right-hand drive model is similar.
Circuit breaker testing
1. Remove the center section of the dashboard (see ch. «Body»).
2. Disconnect the 5-pin connector from the switch.
3. Push the switch from behind the center section and remove it.
4. Check the presence of continuity between the contacts in all positions of the switch in accordance with the table.
Health check
Note: Do not scratch or damage heater wires with tester probes.
1. Check for voltage between the positive terminal and ground when the ignition key and heater switch are in the ON position. There should be battery voltage.
- If there is no voltage, check:
- Is the heater switch OK?
- Is there an open in the BLACK/BLUE wire.
- Bad grounding (G401, G402, G501).
- If there is voltage, go to step 2.
2. Check for continuity between the negative terminal and ground. If there is no continuity, check for an open in the heater ground wire.
3. Touch the positive probe of the voltmeter to the midpoint of each heater wire, and the negative probe to the negative terminal. Should be about 6 V when the ignition key and heater switch are in the ON position.
- If the voltage is correct, the heater wire is good.
- If the voltage is not correct, repair the heater wire.
- If the voltage is greater than 6 V, there is a break in the negative half of the wire.
- If the voltage is less than 6 V, there is a break in the positive half of the wire.
Wiring diagram
Heater Wire Repair
Note: For the repair to be effective, the length of the broken section should not exceed 2.5 cm.
1. Lightly abrade the area around the torn area with a fine steel mesh, then clean with alcohol.
2. Gently apply cellophane tape to the top and bottom of the torn section of the heater wire.
3. Using a small brush, apply a thick layer of electrically conductive silver paint so that it protrudes approximately 0.3 mm from both sides of the cliff. Let dry for 25 minutes. Stir paint thoroughly before application.
4. Check for continuity in the repaired wire.
5. Apply the second coat of paint in the same way. Allow to dry for three hours before removing the film.