Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Clearance Warning ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the clearance warning ECU assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuse for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY POWER SOURCE)

(a) Disconnect the C30 connector from the clearance warning ECU assembly.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

C30-1 (IG) - Body ground

Ignition switch ON

11 to 14 V

C30-1 (IG) - Body ground

Ignition switch off

Below 1 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - BODY GROUND)

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C30-30 (E) - Body ground

Always

Below 1 Ω

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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