On-Vehicle Inspection [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT IGNITION CONTROL RELAY (IGCT)

Measure the resistance according to the value(s) in the table below.

Fig 1: Identifying Relay (IGCT) Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Resistance

Tester Connection	Condition	Specified Condition
3 - 5	Auxiliary battery voltage is not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Auxiliary battery voltage is applied between terminals 1 and 2	Below 1 Ω

TEXT IN ILLUSTRATION

*1	Ignition Control Relay (IGCT)

If the result is not as specified, replace the ignition control relay (IGCT).

INSPECT HYBRID WATER PUMP RELAY (INV W/PMP)

Measure the resistance according to the value(s) in the table below.

Fig 2: Identifying Hybrid Water Pump Relay Terminals

Standard Resistance

Tester Connection	Condition	Specified Condition
3 - 5	Auxiliary battery voltage is not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Auxiliary battery voltage is applied between terminals 1 and 2	Below 1 Ω

TEXT IN ILLUSTRATION

*1	Hybrid Water Pump Relay (INV W/PMP)

If the result is not as specified, replace the hybrid water pump relay (INV W/PMP).