toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

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Fuse Block: Diagnostic Aids

General Information

GENERAL INFORMATION

A large number of ECU controlled systems are used in the TOYOTA TUNDRA. In general, ECU controlled systems are considered to be a very
intricate, requiring a high level of technical knowledge to troubleshoot. However, following the problem checking procedures of the ECU controlled
system's circuits carefully is not complex. If you have an adequate understanding of the system and a basic knowledge of electricity, accurate diagnosis
and necessary repair can be performed.

This manual emphasizes the above standpoint to help service technicians perform accurate and effective troubleshooting.

FOR USING OBD II SCAN TOOL OR HAND-HELD TESTER

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Before using the tester, read its user manual thoroughly.

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