Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Tailgate will not release when release switch pressed
Overview
- Affects
- All models, →12/23.
- Remedy
- Fit modified part
Cause
Failure of tailgate release switch due to water ingress through manufacturer's tailgate emblem.
Repair
- Fit modified tailgate release switch.
- Fit new manufacturer's emblem to tailgate.
Data: Motorwise Workshop. Bulletin 2.
Brakes
1 documented fault — symptoms, causes and workshop fixes.
Random operation of ABS when driving over rough roads and braking lightly at low speed
Overview
- Affects
- All models.
- Remedy
- Software update
Cause
Engine control module (ECM) software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program engine control module (ECM) with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 1.
Glossary
Technical terms used in this guide.
- ECM
- Engine control module — the electronic unit that manages the engine
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
Frequently asked questions
What are the common faults with the Toyota Corolla Cross 1.8?
This guide contains two workshop bulletins for the Toyota Corolla Cross 1.8. Of these, one concerns the electrical and ignition and one the brakes. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Toyota Corolla Cross 1.8 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 Corolla Cross 1.8 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.