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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System Description
SYSTEM DESCRIPTION
LOAD OPERATION OUTPUT
(a) Load is turned on or off according to the operation signals and switch signals
from each ECU.
Components
Power Distribution Box Assembly
Rear Window Defogger
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Back-up Light
Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground (P0ABF11,P0ABF15,P0B0E11,P0B0E15,P1CBB12,P1CBB14)
DESCRIPTION A battery current sensor, which is mounted on the positive cable side of each HV battery junction block assembly, detects the current flowing to or from the battery pack. The battery current sensor sends a voltage, which varies between 0 and 5 V in proportion to the amperage, to the IB0
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