Toyota Highlander Service Manual: Diagnostic trouble code chart
Toyota Highlander Service Manual / Introduction / How to troubleshoot ecu controlled systems / How to proceed with troubleshooting / 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 trouble code chart is shown below as an example.
Symptom simulation
HINT:
The most difficult case in troubleshooting is when no problem symptoms occur. In
such cases, a thorough
customer problem analysis must be carried out. A simulation of the same or
similar c ...
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 sti ...
More about Toyota Highlander:
On-vehicle inspection
1. CHECK POWER SEAT FUNCTION
(a) Check the basic functions.
Operate the power seat switches and check to
make sure each seat function works:
Sliding
Front vertical (driver's seat only)
Rear vertical (driver's seat only)
Reclining
Lumbar support (driver's seat only)
...
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