Toyota Corolla Cross: How To Troubleshoot Ecu Controlled Systems
Toyota Corolla Cross (2022-2025) Service Manual / General / Introduction / How To Troubleshoot Ecu Controlled Systems
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General Information
GENERAL INFORMATION
A large number of ECU controlled systems are used in this vehicle. In general,
ECU controlled systems are considered to be very intricate, requiring a high
level of techn
Electronic Circuit Inspection Procedure
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
BASIC INSPECTION
(a) WHEN MEASURING RESISTANCE OF ELECTRONIC PARTS
(1) Unless otherwise stated, all resistance measurements are standard values
measured at
How To Proceed With Troubleshooting
HOW TO PROCEED WITH TROUBLESHOOTING
OPERATION FLOW
HINT:
Perform troubleshooting in accordance with the procedure below. The following
is an outline of basic troubleshooting procedure. Confirm th
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Inspection
INSPECTION PROCEDURE 1. INSPECT FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection Condition
Specified Condition
1 - 2 20°C (68°F)
0.45 to 0.55 Ω If the
Road Test
ROAD TEST
PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem analysis, try to reproduce the
symptoms. If the problem is that the transaxle does not change gear ratios or changes
ratios at the wrong engine speed, conduct the following road test while referring
to the
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