Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
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PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT
CAUTION:
When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the rotating
DESCRIPTION The ECM turns on or off the fan relays using signals calculated from the engine coolant temperature, air conditioning switch (on/off), air conditioning refrigerant pressure, engine speed a
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DESCRIPTION The headlight ECU sub-assembly operates using the power source voltage input from the IGR terminal and ECUB terminal.
The IG terminal power source voltage is supplied by turning the IGR-NO.1 relay to ON.
The headlight ECU sub-assembly receives ignition switch ON signals from the main b
REPLACEMENT PROCEDURE 1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
(a) Turn the ignition switch ON. (b) Operate the compressor under the conditions shown below:
Item Condition
Operating time 3 minutes or more
Temperature setting Max cool
Blower speed High
Problem Symptoms Table
IG Circuit Short to Ground or Open (B242E14)
