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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DESCRIPTION Refer to DTC P052012. Click here
DTC No. Detection Item
DTC Detection Condition Trouble Area
MIL Note
P052024 Engine Oil Pressure Sensor/Switch "A" Signal Stuck High
The oil pressure sensor output voltage is higher than the threshold value (1 tri
DESCRIPTION If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck high (e.g. shorted to +B), the ECM stores this DTC.
DTC No. Detection Item
DTC Detection Condition Trouble Area
Note B279A12
Engine Immobiliser System Circuit Short to Battery
How To Proceed With Troubleshooting
Engine Oil Pressure Sensor/Switch "A" Signal Stuck High (P052024,P05202A)
