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 CircuitInspection
INSPECTION
PROCEDURE
1. INSPECT PAD LINING THICKNESS
(a) Using a ruler, measure the pad lining thickness.
Text in Illustration
*1
Ruler
Standard thickness of a new pad:
12.0 mm (0.472 ...
Open in Front Floor Electrical Key Oscillator Circuit (B27A5)
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and
sends it to the indoor electrical key oscillator (for front floor). To detect the
key inside the cabin, the indoor electrical key oscillator (for front floor) create ...
ACC Signal Circuit
DESCRIPTION
This circuit detects the ignition switch ACC or off condition, and sends it to
the main body ECU (driver side junction block assembly).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system ...