Toyota Highlander manuals

Toyota Highlander Service Manual: Problem symptoms table

The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot when, during a DTC check, a "Normal" code is displayed but the problem is still occurring. Numbers in the table show the inspection order in which the circuits or parts should be checked.

HINT: In some cases, the problem is not detected by the diagnostic system even though a problem symptom is present. It is possible that the problem is occurring outside the detection range of the diagnostic system, or that the problem is occurring in a completely different system.

Problem symptoms table


Diagnostic trouble code chart
Use Diagnostic Trouble Codes (DTCs) (from the DTC checks) in the table below to determine the trouble area and proper inspection procedure. The Supplemental Restraint System (SRS) diagnostic trou ...

Circuit inspection
How to read and use each page is shown below. ...

More about Toyota Highlander:

Data list/active test
1. CHECK USING INTELLIGENT TESTER (a) Connect the intelligent tester to the DLC3. (b) Select the DATA LIST mode on the intelligent tester. Sliding roof ECU: (c) The active test will indicate if the part is normal or malfunctioning. Sliding roof ECU: ...

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