Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Unable to turn ignition switch with key
Cause
Unsatisfactory design of ignition switch.
Repair
- Fit modified ignition switch and steering column lock.
Data: Motorwise Workshop. Bulletin 2.
Other
1 documented fault — symptoms, causes and workshop fixes.
Parking aid warning devices activated with no obstructions present
Overview
- Affects
- All models with parking aid control.
- Remedy
- Fit new part
- Parts
- 1 part
Cause
Parking aid 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 new parking aid control module.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Parking aid control module | PW501-0D550 | 1 |
Data: Motorwise Workshop. Bulletin 1.
Glossary
Technical terms used in this guide.
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Parking Aid
- The reversing/parking sensors and their control module
Frequently asked questions
What are the common faults with the Toyota Yaris 1.0 VVT-i?
This guide contains two workshop bulletins for the Toyota Yaris 1.0 VVT-i. Of these, one concerns the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Yaris 1.0 VVT-i 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 1.0 VVT-i faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.