Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled
systems / Customer problem analysis
Toyota Corolla (E120): Customer problem analysis
Hint
:
- in troubleshooting, the problem symptoms must be confirmed accurately, meaning that all preconceptions must be set aside in order to make an accurate judgement. To ascertain what the problem symptoms are, it is extremely important to ask the customer about the problem and conditions when it occurred.
- The following 5 items are important points in the problem analysis. Past problems which are thought to be unrelated and the repair history, etc. May also help in some cases. Therefore, as much information as possible should be gathered and its relationship with the problem symptoms should be correctly ascertained for use as reference in troubleshooting. A customer problem analysis table is provided for your use in the diagnostics section for each system.
(Sample) supplemental restraint system check sheet.
Other materials:
Maintenance data (fuel, oil level,
etc.)
Dimensions and weight
*1:Unladen vehicles
*2:Vehicles without 18-inch tires
*3:Vehicles with 18-inch tires for Guam and Saipan
*4:Vehicles with 18-inch tires except for Guam and Saipan
*5:For Guam and Saipan
Seating capacity
Vehicle identification
■ Vehicle identification number
The vehicle iden ...
AHB (Automatic High Beam)
The Automatic High Beam
uses a front camera located
on the upper portion of the
windshield to detect the
brightness of the lights of
vehicles ahead, streetlights,
etc., and automatically
changes the head
lights between the high
beams and low beams.
WARNING
■For safe use
Do not overly rely on the A ...
Smart key system
The following operations
can be performed simply by
carrying the electronic key
on your person, for example
in your pocket. The driver
should always carry the
electronic key.
Locks and unlocks the
doors
Opens the trunk
Starts the engine
■Antenna location
Antennas outside the cabin
Ante ...