Toyota Corolla Cross: System Diagram
SYSTEM DIAGRAM
SMART KEY SYSTEM (for Start Function)
SMART KEY SYSTEM (for Entry Function)
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CAUTION / NOTICE / HINT
NOTICE:
Do not perform "Smart Code Reset" (all key ID erasure) until all malfunctions and symptoms have been confirmed and resolved. If all key ID erasure is performed wi
CUSTOMER PROBLEM ANALYSIS CHECK
HINT: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DT
CHECK FOR INTERMITTENT PROBLEMS
NOTICE:
Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will b
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REASSEMBLY CAUTION / NOTICE / HINT
Procedure Part Name Code
1 WIRE HARNESS CLAMP BRACKET
- -
- -
2 FUEL HOSE BRACKET
23881B -
- -
3 HV AIR CONDITIONING WIRE
821H2
- -
DESCRIPTION A backup boost converter is built into the engine stop and start ECU.
The backup boost converter helps maintain auxiliary battery voltage to prevent various functions from failing if power source voltage supplied from the backup boost converter drops due to the high electrical load whe
How To Proceed With Troubleshooting
Reassembly
