Toyota Highlander Service Manual: Customer problem analysis
HINT:
- In troubleshooting, the problem symptoms must be confirmed
accurately. Preconceptions should be
discarded in order to give an accurate judgement. To clearly understand what
the problem symptoms
are, it is extremely important to ask the customer about the problem and the
conditions at the time it
occurred.
- As much information as possible should be gathered for reference.
Past problems that seem unrelated
may also help in some cases. In the Diagnostic section, a customer problem
analysis table is provided
for each system.
- 5 items are important points in the problem analysis:
(Sample) Supplemental Restraint System check sheet.
HINT:
Carry out troubleshooting in accordance with the procedures below. Only a basic
procedure is shown. Details
in the Diagnostic Section show the most effective methods for each circuit.
Conf ...
HINT:
The diagnostic system in the HIGHLANDER has various functions.
The first function is the Diagnostic Trouble Code (DTC) check. A DTC
is a code stored in the ECU
memory whenever a malfun ...
More about Toyota Highlander:
Horn system
LOCATION
INSPECTION
1. INSPECT RELAY (HORN)
(a) Remove the HORN relay from the engine room J/B.
(b) Measure the HORN relay resistance.
Standard:
2. INSPECT HIGH PITCHED HORN ASSY
(a) Check operation of the horn.
Standard:
If the result is not as specified, replace the horn ...
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