On-Vehicle Inspection

INSPECT DEFOGGER RELAY

Check the resistance.

Using an ohmmeter, measure the resistance between the terminals.

Fig 1: Measuring Resistance Between Terminals Using Ohmmeter

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

STANDARD RESISTANCE SPECIFICATIONS

Tester Connection	Specified Condition
3-4	Below 1 Ω
3-4	10 kΩ or higher (Battery voltage applied to terminals 1 and 2)
3-5	10 kΩ or higher
3-5	Below 1 Ω (Battery voltage applied to terminals 1 and 2)

If the result is not as specified, replace the defogger relay.