Toyota Corolla (E120) 2002–2008 Repair Manual / Introduction / How to troubleshoot ecu controlled
systems / Problem symptoms table
Toyota Corolla (E120): Problem symptoms table
The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to troubleshoot the problem when a normal code is displayed in the diagnostic trouble code chart but the problem is still occurring. Numbers in the table indicate the order in which the circuits or parts should be checked.
Hint: when the problem is not detected by the diagnostic system even though the problem symptom is present, it may be that the problem is occurring outside the detection range of the diagnostic system.
Other materials:
For vehicles equipped with mobile communication system
Install an antenna as far as possible away from the ecu
and sensors of the vehicle’s electronic systems.
install an antenna feeder at least 20 cm (7.87 In.) Away
from the ecu and sensors of the vehicle’s electronic systems.
For details of the ecu and sensors locations, refer ...
Pre–check
1. Diagnosis system
Release the parking brake lever.
check the warning lights.
When the ignition switch is turned on, check that the abs
warning light and brake warning light goes on for 3 sec.
Hint:
when the parking brake is applied or the level of the brake
fluid is low, the ...
Inspection procedure
1 Inspect transmission wire(slt)
Disconnect the transmission wire connector from the
transaxle.
measure the resistance according to the value(s) in the
table below.
Standard:
Measure the resistance according to the value(s) in the
table below.
Standard (check for short):
...