PROBLEM SYMPTOMS TABLE
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Cooling Fan System|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Cooling fan does not operate |
Cooling fan motor |
|
|
No. 2 cooling fan motor |
|
|
|
FAN NO. 1 relay |
|
|
|
FAN NO. 2 relay |
|
|
|
FAN NO. 3 relay |
|
|
|
Cooling fan circuit |
|
|
|
ECM |
|
|
|
Cooling fan does not stop |
FAN NO. 1 relay |
|
|
FAN NO. 3 relay |
|
|
|
Cooling fan circuit (for short circuit) |
|
|
|
ECM |
|
|
|
Cooling fan speed does not change |
FAN NO. 2 relay |
|
|
Cooling fan circuit |
|
|
|
ECM |
|
System Diagram
Cooling Fan CircuitHow To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the audio and visual system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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...
Speaker Circuit
DESCRIPTION
for 6 Speakers:
If there is a short in a speaker circuit, the navigation receiver assembly detects
it and stops output to the speakers.
Thus sound cannot be heard from the speakers even if there is no malfunction
in the navigation receiver a ...
Unlock Warning Switch Circuit
DESCRIPTION
The key unlock warning switch assembly turns on when the ignition key is inserted
into the ignition key cylinder and turns off when the ignition key is removed.
The main body ECU (driver side junction block assembly) operates the key confinemen ...