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Toyota Corolla Repair Manual: How to troubleshoot ecu controlled systems

Toyota Corolla Repair Manual / Introduction / How to troubleshoot ecu controlled systems

Vehicle lift and support locations
1. Notice about vehicle condition when jacking up As a rule, the vehicle must be unloaded when jacking up. Never jack up or lift up the vehicle loaded with things of heavy weight.  whe ...

General information
There are many ecu controlled systems used in the corolla. In general, ecu controlled system are considered to be very intricate and require a high level of technical knowledge and expert skill t ...

Other materials:

Onvehicle inspection
1. Inspect cooling system for leaks Caution: to avoid the danger of being burned, do not remove the radiator cap while the engine and radiator are still hot, as fluid and steam can be blown out under pressure.  fill the radiator with coolant and attach a radiator cap tester.   ...

How to proceed with troubleshooting
The handheld tester can be used at step 3, 4, 6, 9. 1 Vehicle brought to workshop 2 Customer problem analysis 3 Connect the obd ii scan tool or handheld tester to dlc3 4 Check and clear dtc and freeze frame data 5 Visual inspection 6 Setting the check mode diagnosis 7 Problem sy ...

Changing engine switch modes
Modes can be changed by pressing the engine switch with the brake pedal (continuously variable transmission) or clutch pedal (manual transmission) released. (The mode changes each time the switch is pressed.) ► Vehicles without a multi-information display Off* The emergency flashers ca ...

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