Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
One or both headlamps do not operate when switched on
Cause
Internal failure of combination switch.
Repair
- Replace combination switch.
Data: Motorwise Workshop. Bulletin 5.
Brakes
1 documented fault — 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.
Steering
1 documented fault — symptoms, causes and workshop fixes.
ESP warning lamp illuminated
Incorrect calibration of steering angle sensor.
Overview
- Affects
- All models with electronic stability program (ESP).
- Fault codes
C1288
Symptoms
Trouble code stored: C1288. Unable to program steering angle sensor.
Repair steps
- Ensure steering in straight-ahead position.
- Ensure steering angle sensor aligned with steering column.
- Carry out steering angle sensor calibration.
Data: Motorwise Workshop. Bulletin 4.
Clutch & gearbox
1 documented fault — symptoms, causes and workshop fixes.
Squeaking noise when clutch pedal depressed or released
Symptoms
Erratic clutch pedal action. Gears difficult to engage.
Cause
Faulty clutch master cylinder.
Repair
- Fit modified clutch master cylinder.
Data: Motorwise Workshop. Bulletin 2.
Air conditioning & heating
1 documented fault — symptoms, causes and workshop fixes.
Musty odour from air conditioning (AC) when operating
Overview
- Affects
- All models with air conditioning (AC).
- Remedy
- Fit modified part
- Parts
- 3 parts
Cause
Faulty AC evaporator temperature sensor.
Faulty AC amplifier.
Repair
- Models with ATC: Fit modified AC evaporator temperature sensor. Fit modified AC amplifier.
- Models with MTC: Fit modified AC evaporator temperature sensor. Fit auxiliary wiring harness between AC evaporator temperature sensor and AC wiring harness.
Parts3 parts
| Part | Part number | Qty |
|---|---|---|
| AC evaporator temperature sensor | 88620-12080 | 1 |
| AC amplifier | 88650-12A11 | 1 |
| Auxiliary wiring harness | 22648-12750 | 1 |
Data: Motorwise Workshop. Bulletin 3.
Glossary
Technical terms used in this guide.
- AC
- Air conditioning — the system that cools the cabin
- ATC
- Automatic temperature control — climate control that holds the temperature you set
- ESP
- Electronic stability programme — brakes individual wheels to stop a skid
- Steering Angle Sensor
- Tells the stability-control system which way the steering wheel is pointing
- 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
- Calibration
- Setting a sensor or module so its readings match the real world
- Evaporator
- The air-conditioning heat exchanger in the dashboard that cools the cabin air
Frequently asked questions
What are the common faults with the Toyota Corolla 1.8?
This guide contains five workshop bulletins for the Toyota Corolla 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 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 1.8 faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.