Engine & fuel system
1 documented fault — symptoms, causes and workshop fixes.
Failure to start
Ignition switch faulty. Fix: fit a modified part.
Overview
- Affects
- All models, →09/08.
- Remedy
- Fit modified part
Symptoms
Ignition switch sticks in start position. Possible damage to engine wiring harness. Starter motor burns out. Starter motor not disengaging.
Repair steps
- Fit modified ignition switch.
- Check engine wiring harness for damage. Replace as necessary.
- Check starter motor for damage. Replace as necessary.
Parts
| Part | Part number | Qty |
|---|---|---|
| Ignition switch repair kit | 69057-0H011-84 | 1 |
| Engine wiring harness (1KR-FE) | Refer to manufacturer | 1 |
| Starter motor | Refer to manufacturer | 1 |
Data: Motorwise Workshop. Bulletin 6.
Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Airbag warning lamp flashes continuously
Overview
- Affects
- All models.
- Fault codes
B1000- Remedy
- Fit modified part
Symptoms
Trouble code stored: B1000.
Cause
SRS control module faulty.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit modified SRS control module.
Data: Motorwise Workshop. Bulletin 3.
Clutch & gearbox
1 documented fault — symptoms, causes and workshop fixes.
Poor starting
Overview
- Affects
- All models with auto shift manual (ASM) transmission, →06/13.
- Remedy
- Fit new part
- Parts
- 3 parts
Symptoms
Poor gear shifting. Unable to select 1st gear.
Cause
Broken clutch release bearing.
Excessive wear on clutch pressure plate diaphragm spring due to faulty clutch release lever.
Repair
- Fit new clutch assembly.
- Fit new clutch release lever.
Parts3 parts
| Part | Part number | Qty |
|---|---|---|
| Clutch centre plate | 31233-0H010 | 1 |
| Clutch assembly | 31210-79015 | 1 |
| Clutch release bearing | 31230-0H011 | 1 |
Data: Motorwise Workshop. Bulletin 8.
Body & trim
5 documented faults — symptoms, causes and workshop fixes.
Water ingress into rear of passenger compartment
Cause
Rear door glass deformed.
Repair
- Renew weather seal at front of rear door glass.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Weather seal | 67873-0H011 | 1 |
Data: Motorwise Workshop. Bulletin 1.
Rattling noise from front passenger's seat when unoccupied
Cause
Front passenger's seat runner assembly vibrating.
Repair
- Fit modified seat runner assembly.
Data: Motorwise Workshop. Bulletin 2.
Water ingress into passenger compartment through front or rear door weather seals
Cause
Incorrectly manufactured door weather seals.
Repair
- Fit modified door weather seals as necessary.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Weather seal | 62381-70010 | 2 |
| Weather seal | 62381-70020 | 2 |
Data: Motorwise Workshop. Bulletin 5.
Water ingress into load area
Symptoms
Rear footwell carpet wet.
Cause
Damaged or incorrectly fitted air ventilation outlet grilles, located behind rear bumper.
Repair
- Check fitment and condition of air ventilation outlet grilles, replace if necessary.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Air ventilation outlet grille | 62930-0H010 | 2 |
Data: Motorwise Workshop. Bulletin 7.
Difficult to insert and turn key in door lock barrel
Overview
- Affects
- All models without remote controlled central locking, →06/13.
- Remedy
- Fit modified part
- Parts
- 1 part
Cause
Unsatisfactory design of door lock barrel.
Repair
- Fit modified door lock barrels.
- Program all new keys to immobilizer control module.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Door lock barrel set | 69005-0H911 | 1 |
Data: Motorwise Workshop. Bulletin 9.
Other
1 documented fault — symptoms, causes and workshop fixes.
Unable to select gears
Cause
Gear selector cable connection broken.
Repair
- Fit modified gear selector cable.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Gear selector cable - 1,0 | 33820-0H010 | 1 |
| Gear selector cable - 1,4 D-4D | 33820-0H020 | 1 |
Data: Motorwise Workshop. Bulletin 4.
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
- SRS
- Supplementary restraint system — the airbags and seat-belt pretensioners
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Immobilizer
- The anti-theft system that prevents the engine from starting without the correct key
- Selector Cable
- The cable that connects the gear lever to the gearbox
- Trouble Code
- A standardised fault code stored by a control module, read with a diagnostic tool
- Wiring Harness
- The bundled cables that carry power and signals around the vehicle
Frequently asked questions
What are the common faults with the Toyota Aygo 1.4 D-4D?
This guide contains nine workshop bulletins for the Toyota Aygo 1.4 D-4D. Of these, five concern the body and trim and one the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Aygo 1.4 D-4D 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 Aygo 1.4 D-4D faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.