Trouble Symptom
|
Probable Cause
|
Remedy
|
Coolant leakage
|
• |
From the bleed hole of the water pump
|
|
Visually check
|
• |
Check leaks after about 10 minutes of warming up.
|
|
• |
If coolant still leaks, replace the water pump.
|
|
• |
If leakage stops, reuse the water pump. (Do not replace the
pump with a new one.)
|
|
|
• |
Check the tightening of the water pump mounting bolts.
|
|
• |
Retighten the mounting bolts.
|
|
• |
Check damage of gaskets or inflow of dust.
|
|
• |
Replace the gasket and clean dust off.
|
|
• |
From outer surface of water pump
|
|
• |
Check the material for any cracks of the water pump.
|
|
• |
Material defect. If any cracks are found, replace the water
pump.
|
|
Noise
|
|
Inspection with a stethoscope
|
• |
After starting the engine, check noise with a stethoscope.
|
|
• |
If there is no noise, reuse the water pump (do not replace it).
|
|
• |
If there is any noise from the water pump, remove the drive
belt and recheck.
|
|
Inspection after removing the drive belt.
|
• |
After removing the water pump and the drive belt, check noise
again.
|
|
• |
If there is noise, reuse the water pump. Check other drive line
parts.
|
|
• |
If there is no noise, replace the water pump with a new one.
|
|
Inspection after removing the water pump
|
• |
After removing the water pump and the drive belt, check noise
again.
|
|
• |
If there is any interference between them, replace the water
pump with a new one.
|
|
Overheating
|
|
Loose impeller
|
|
• |
Poor coolant quality / Maintenance check
|
|
• |
Impeller seperated from the shaft
|
|
• |
Replace the water pump.
|
|
Description and operation
Description and Operation
Electric Thermostat (ECT)
Overview
Optimal control of coolant temperature depending on the driving conditions
Operation Principle
Electric Thermostat (ECT) Structure
Repair procedures
Removal
•
Be careful not to damage the parts located under the vehicle
(floor under cover, fuel filter, fuel tank and canister) when
raising the vehicle using the lift...
Other information:
Repair procedures
Replacement
•
When installing the belt, make sure not to damage the retractor.
•
Put on gloves to prevent hand injuries...
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptom
Probable cause
Remedy
The set vehicle speed varies greatly upward or downward
"Surging" (repeated alternating acceleration and deceleration) occurs after
setting
Malfunction of the vehicle speed sensor circuit
Repair the vehicle speed sensor system, or replace the part
Malfunction of ECM
Check input and output signals at ECM
Trouble Symptom 3
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when the brake pedal is depressed
Damaged or disconnected wiring of the brake pedal switch
Repair the harness or replace the brake pedal switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 4
Trouble symptom
Probable cause
Remedy
The CC system is not canceled when the shift lever is moved to the "N" position
(It is canceled, however, when the brake pedal is depressed)
Damaged or disconnected wiring of inhibitor switch input circuit
Repair the harness or repair or replace the inhibitor switch
Improper adjustment of inhibitor switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 5
Trouble symptom
Probable cause
Remedy
Cannot decelerate (coast) by using the "SET/–" switch
Temporary damaged or disconnected wiring of "SET/–" switch input circuit
Repair the harness or replace the "SET/–" switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 6
Trouble symptom
Probable cause
Remedy
Cannot accelerate or resume speed by using the "RES/+" switch
Damaged or disconnected wiring, or short circuit, or "RES/+" switch input
circuit
Repair the harness or replace the "RES/+" switch
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 7
Trouble symptom
Probable cause
Remedy
CC system can be set while driving at a vehicle speed of less than 40km/h
(25mph), or there is no automatic cancellation at that speed
Malfunction of the vehicle-speed sensor circuit
Repair the vehicle speed sensor system, or replace the part
Malfunction of the ECM signals
Check input and output signals at ECM
Trouble Symptom 8
Trouble symptom
Probable cause
Remedy
The cruise main switch indicator lamp does not illuminate (although CC system
is normal)
Damaged or disconnected bulb of cruise main switch indicator lamp
Repair the harness or replace the part...