On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT VSC NO. 1 (FAIL SAFE) RELAY

Remove the VSC No. 1 (fail safe) relay.

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
3 - 5	Always	10 kΩ or higher
3 - 5	Apply B+ between terminals 1 and 2	Below 1 Ω

Fig 1: Identifying VSC No. 1 (Fail Safe) Relay

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the value is not as specified, replace the VSC No. 1 (fail safe) relay.

INSPECT VSC NO. 2 RELAY

Remove the VSC No. 2 relay.

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

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
3 - 5	Always	10 kΩ or higher
3 - 5	Apply B+ between terminals 1 and 2	Below 1 Ω

If the value is not as specified, replace the VSC No. 2 relay.

Fig 2: VSC NO. 2 (Fail Safe) Relay