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 > Engine Immobiliser System (w/o Smart Key System): Engine Immobiliser System Malfunction (B2799)
DESCRIPTION The ECM stores this DTC when a communication line between the ECM and transponder key ECU assembly is malfunctioning or the communication ID of the ECM and transponder key ECU assembly do not match. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2799 Engine Immobiliser ...

Toyota Tundra Owners Manual