Toyota2002–2006

Yaris 1.3: Common faults & known problems

Common faults & known problems

10 known faults documented in workshop bulletins. Of these, three concern the engine and fuel system and three the body and trim. Symptoms, causes, repair steps and part numbers are shown where supplied.

Technical specifications

Engine & fuel system

3 documented faults — symptoms, causes and workshop fixes.

Noise from auxiliary drive belt when starting engine from cold

Overview

Affects: All models with 1SZ-FE/2SZ-FE engine codes, →08/06.
Remedy: Fit new part
Parts: 4 parts

Cause

Insufficient tension of auxiliary drive belt.

Repair

Fit new auxiliary drive belt.
Tension auxiliary drive belt to manufacturer's specification.

Parts4 parts

Parts listed in the bulletin
Part	Part number	Qty
Auxiliary drive belt - 1,0 with AC	90080-91199	1
Auxiliary drive belt - 1,0 without AC	90080-91198	1
Auxiliary drive belt - 1,3 with AC	99366-K1770	1
Auxiliary drive belt - 1,3 without AC	90080-91198	1

Data: Motorwise Workshop. Bulletin 7.

Abnormal noise from exhaust when engine idling at operating temperature

Affects All models built in France with 1SZ-FE/2SZ-FE engine codes.Fit modified part

Cause

Unsatisfactory design of rear exhaust silencer gasket.

Repair

Fit modified rear exhaust silencer gasket.

Parts1 part

Parts listed in the bulletin
Part	Part number	Qty
Rear exhaust silencer gasket	17451-0J011	1

Data: Motorwise Workshop. Bulletin 8.

Oil leak from front of engine

Affects All models with 1SZ-FE/2SZ-FE engine codes, →05/07.Fit modified part

Cause

Unsatisfactory design of timing chain cover.

Repair

Fit modified timing chain cover.

Data: Motorwise Workshop. Bulletin 9.

Electrical & ignition

1 documented fault — symptoms, causes and workshop fixes.

Whistling noise when driving with front door window open

Affects All models built in France, →09/05.

Cause

Poor manufacture of door mirror.

Repair

Renew door mirror.

Data: Motorwise Workshop. Bulletin 5.

Brakes

2 documented faults — symptoms, causes and workshop fixes.

Brakes squeal

Overview

Affects: All models.

Cause

Replacement brake pads fitted without anti-squeal shims.

Repair

Ensure brake pad anti-squeal shims are fitted.
Replacement shims available separately.

Data: Motorwise Workshop. Bulletin 1.

Handbrake lever difficult to operate when driver's seat in fully forward position

Overview

Affects: All models built in UK and Turkey, →07/07.

Cause

Incorrect adjustment of handbrake mechanism.

Repair

Adjust handbrake mechanism to obtain 3-6 notches at handbrake lever whilst applying 200 N.
Carry out brake bedding-in procedure: Drive vehicle at 25 mph (40 kph). Apply handbrake lever 1 notch. Drive vehicle for 400 metres. Release handbrake lever. Wait 5 minutes. Repeat above procedure twice.

Data: Motorwise Workshop. Bulletin 3.

Clutch & gearbox

1 documented fault — symptoms, causes and workshop fixes.

Clutch slip

Affects All models with transmission control module (TCM), →VIN VNKKL96320A137206.

Symptoms

Transmission warning buzzer and warning lamp on.

Cause

Faulty circuit in transmission control module (TCM).

Repair

Renew transmission control module (TCM).

Data: Motorwise Workshop. Bulletin 2.

Body & trim

3 documented faults — symptoms, causes and workshop fixes.

Buzzing or rattling noises from front seat belt and seat belt buckle

Overview

Affects: All models built in Japan.

Cause

Seat belt upper anchorage point trim panel vibrating.

Seat belt buckle vibrating against seat side trim panel.

Repair

Apply felt tape to back of seat belt upper anchorage point trim panel.
Apply felt tape to seat belt buckle.

Data: Motorwise Workshop. Bulletin 4.

Rattling noise from front door area

Affects All models built in France.

Cause

Door lock button link rod making contact with door panel.

Repair

Fit foam spacer between door lock button link rod and door panel.

Data: Motorwise Workshop. Bulletin 6.

Bonnet will not open

Affects All models built in France, →06/05.Fit modified part

Cause

Unsatisfactory design of bonnet release cable.

Repair

Fit modified bonnet release cable.

Parts1 part

Parts listed in the bulletin
Part	Part number	Qty
Bonnet release cable	53630-0D011	1

Data: Motorwise Workshop. Bulletin 10.

Glossary

Technical terms used in this guide.

VIN: Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
TCM: Transmission control module — the electronic unit that manages the gearbox
Control Module: A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
Auxiliary Drive Belt: The belt that drives the alternator, water pump, steering pump or air-conditioning compressor

Frequently asked questions

What are the common faults with the Toyota Yaris 1.3?

This guide contains 10 workshop bulletins for the Toyota Yaris 1.3. Of these, three concern the engine and fuel system and three the body and trim. Symptoms, causes, repair steps and part numbers are shown where supplied.

Does every Toyota Yaris 1.3 have these faults?

No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.

Can I check for Toyota Yaris 1.3 faults myself?

Many of them. The documented symptoms can be seen, heard or felt during a test drive.