Toyota Tundra Service Manual: Clearance Warning Buzzer Circuit

DESCRIPTION

The clearance warning buzzer is installed in the combination meter assembly.

WIRING DIAGRAM

PROCEDURE

1.	CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - COMBINATION METER ASSEMBLY)

(a) Disconnect the J35 clearance warning ECU assembly connector.

(b) Disconnect the J28 combination meter assembly connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J35-2 (ER) - J28-3 (BZ)	Always	Below 1 Ω
J35-2 (ER) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

2.	CHECK COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly with a normally functioning or new one (See page ).

(b) Check that the clearance warning buzzer operates normally.

OK:

Clearance warning buzzer operates normally.

END (COMBINATION METER ASSEMBLY IS DEFECTIVE)

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Tundra Service Manual > Touch Select 2-4 And High-low System: Automatic Disconnecting Differential Motor Limit Switch Circuit (P17A4)
DESCRIPTION When the A.D.D. actuator is switching between 2WD and 4WD, the DL1 and DL2 terminals of the limit switch are in one of the ON/OFF combinations listed in the table below. Terminal In 2WD Switching between 2WD and 4WD In 4WD DL1 OFF (OPEN) ON (GND) ON (GND) DL2 ON (GND) ON (GND) OFF (OPEN) ...

Toyota Tundra Owners Manual