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.
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.
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More about Toyota Highlander:
On-vehicle inspection
1. CHECK FUEL PUMP OPERATION AND FUEL LEAKS
(a) When using the hand-held tester:
Check fuel pump operation.
Connect the hand-held tester to the DLC3.
Turn the ignition switch ON and push the hand-held
tester main switch ON.
NOTICE:
Do not start the engine.
Select th ...
