Windshield Deicer Switch: Inspection: Inspection
- INSPECT FRONT WIPER DEICER SWITCH
- Check wire harness and connector.
- Disconnect the front wiper deicer switch connector.
- Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition 1 (ILL+) - 6 (ILL-) Headlight dimmer switch off → tail or head Below 1 V → 11 to 14 V 8 (D) - 5 (E) Engine switch on (IG) 11 to 14 V 4 (IG) - 5 (E) Engine switch on (IG) 11 to 14 V Standard Resistance
Tester Connection Condition Specified Condition 6 (ILL-) - Body ground Always Below 1 Ω 5 (E) - Body ground Always Below 1 Ω TEXT IN ILLUSTRATION*a Front view of wire harness connector
(Front Wiper Deicer Switch)
- Check that the front wiper deicer switch operate.
- Reconnect the front wiper deicer connector.
- Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition 8 (D) - 5 (E) Engine switch on (IG), front wiper deicer switch off → on 11 to 14 V → Below 1 V (after 12 to 18 minutes: 11 to 14 V) 4 (IG) - 5 (E) Engine switch on (IG) 11 to 14 V TEXT IN ILLUSTRATION*a Component with harness connected
(Front Wiper Deicer Switch)If the result is not as specified, replace the front wiper deicer switch.
- Check that the indicator light illuminates.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TEXT IN ILLUSTRATION*a Indicator *b Illumination - Turn the engine switch on (IG).
- Make sure that the indicator light illuminates when the front wiper deicer switch is turned on, and then goes off after 12 to 18 minutes elapse.
OK
The indicator light goes off.
- Check that the illumination illuminates.
- Make sure that the illumination illuminates when the headlight dimmer switch is turned from off to tail or head.
OK
The illumination illuminates.
- Make sure that the illumination illuminates when the headlight dimmer switch is turned from off to tail or head.
- Check wire harness and connector.