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 |
|
Brake Pedal Load Sensing Switch
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE PEDAL LOAD SENSING SWITCH
NOTICE:
Do not remove the brake pedal load sensing switch from the brake pedal
support assembly.
When there is a malfunction in the brake pe ...
Cooling Fan Circuit
DESCRIPTION
The ECM turns on or off the fan relays using signals calculated from the engine
coolant temperature, air conditioning (ON/OFF), air conditioner refrigerant pressure,
engine speed, and vehicle speed signals.
The ECM switches the circuit of the ...
Precaution
PRECAUTION
1. TROUBLESHOOTING PRECAUTION
NOTICE:
Be sure to read the supplemental restraint system precautions thoroughly
before servicing the brake system (See page
).
Care must be taken to replace each part properly as it could affect ...