Integration Relay: Inspection: Inspection

INSPECT INTEGRATION NO. 2 RELAY

Fig 1: Identifying Integration Relay Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Inspect the EFI (15A) fuse.

Disconnect the fuse.

Using an ohmmeter, measure the resistance of the fuse.

Standard resistance

Tester Connection	Connection	Specified Condition
T2 - T6	Always	Blow 1 Ω

Inspect the EFI relay.

Using an ohmmeter, measure the resistance between the terminals.

Standard resistance

Tester Connection	Connection	Specified Condition
B1 - C1	When battery voltage absent	Blow 1 Ω
B1 - B4	When battery voltage absent	10 kΩ or higher
B4 - C1	When battery voltage absent	10 kΩ or higher
B1 - B4	When battery voltage applied to terminals B6 and B7	Blow 1 Ω
B4 - C1	When battery voltage applied to terminals B6 and B7	Blow 1 Ω

NOTE:

While using the battery for the inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

Inspect the IG2 relay.

Fig 2: Identifying IG2 Relay Connector Terminals

Using an ohmmeter, measure the resistance between the terminals.

Standard resistance

Tester Connection	Connection	Specified Condition
A1 - A4	When battery voltage absent	10 kΩ or higher
A1 - A4	When battery voltage applied to terminal B2 and B3	Blow 1 Ω

NOTE:

While using the battery for the inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.