check engine TOYOTA PRIUS 2003 1.G Scheduled Maintenance Guide

General Maintenance Information17
Explanation of Maintenance Items
Brake Linings/Drums and Brake Pads/Discs
Check the brake linings (shoes) and drums for scoring, burning, fluid leakage,
broken parts and excessive wear. Checkthe pads for excessive wear and the
discs for runout, excessive wear and fluid leakage. Replace any deteriorated
or damaged parts. A qualified technician should perform these operations.
Differential Oil
Replace at specified intervals. When performing inspections, check each
component for signs of leakage. If you discover any leakage, have it repaired
by a qualified technician immediately.
Drive Belts
Inspect for cracks, excessive wear and oiliness. Check the belttension and adjust
if necessary. Replace the belts if they are damaged.
Drive Shaft Boots
Check the drive shaft boots and clamps forcracks, deterioration and damage.
Replace any deteriorated or damaged parts and, if necessary, repack the grease.
Aqualified technician should perform these operations.
Engine Air Filter
Replace at specified intervals. When performing inspections, check for damage,
excessive wear and oiliness, and replace if necessary.
Engine Coolant
Drain and flush the cooling system and refill with an ethylene-glycol type
coolant. Inspect the radiator and condenser for leaves, dirt and insects and clean
if necessary. Inspect hose connections for tightness and condition. A qualified
technician should perform these operations.
Engine Oil and Oil Filter
Replace the oil filter and drain and refill the engine oil. For recommended oil
grade and viscosity, refer to the
Owner’s Manual.
Engine Valve Clearance
Inspect for excessive lifter noise and engine vibration and adjust if necessary.
Aqualified technician should perform this operation.

General Maintenance Information18
Explanation of Maintenance Items
Exhaust Pipes and Mountings
Visually inspect the exhaust pipes, muffler and hangers for cracks, deterioration
and damage. Start the engine and listen carefully for any exhaust gas leakage.
Tighten connections or replace parts as necessary.
Fuel Lines and Connections, Fuel Tank Band and
Fuel Tank Vapor Vent System Hoses
Visually inspect for corrosion, damage, cracks and loose or leaking connections.
Tighten connections or replace parts as necessary.
Fuel Tank Cap Gasket
Visually inspect for cracks, deterioration and damage and replace if necessary.
Inverter Coolant
Drain and flush the cooling system with an ethylene-glycol type coolant. A qual-
ified technician should perform this operation.
Nuts and Bolts on Chassis and Body
Re-tighten the seat-mounting bolts and front/rear suspension member retaining
bolts to specified torque.
Spark Plugs
Replace at specified intervals. Install newplugs of the same type as originally
equipped. A qualified technician should perform this operation.
Steering Gear Box
Inspect for signs of leakage. If you discover any leakage, have it repaired imme-
diately by a qualified technician.
Steering Linkage and Boots
With the vehicle stopped, check for excessive freeplay in the steering wheel.
Inspect the linkage for bending and damage and the dust boots for deterioration,
cracks and damage. Replace any damaged parts. A qualified technician should
perform these operations.
Tire Rotation
Tires should be rotated according to the instructions in the Owner’s Manual.
When rotating tires, check for damage and uneven wear. Replace if necessary.