Toyota Tundra Service Manual: Starter Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. REMOVE STARTER RELAY (ST)

(a) Remove the engine room relay box cover.

(b) Remove the starter relay from the engine room relay block.

2. INSPECT STARTER RELAY

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

Standard Resistance:

Terminal Connection	Condition	Specified Condition
3 - 5	When battery voltage is not applied to terminals 1 and 2	10 kΩ or higher
3 - 5	When battery voltage is applied to terminals 1 and 2	Below 1 Ω

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

3. INSTALL STARTER RELAY

Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): IG Power Source Circuit
DESCRIPTION When the ignition switch is turned ON, positive (+) battery voltage is applied to the air conditioning amplifier. WIRING DIAGRAM PROCEDURE 1. INSPECT FUSE (ECU-IG1 NO.3) (a) Remove the ECU-IG1 NO.3 fuse from the driver side junction block. (b) Measure the resistance according to the valu ...

Toyota Tundra Owners Manual