Theft Deterrent System Theft Warning Ecu Power Source Circuit

Vehicle Interior. Corolla. Zre142 Aze141
Theft Deterrent Keyless Entry. Corolla. Zre142 Aze141

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK THEFT WARNING ECU ASSEMBLY

CHECK HARNESS AND CONNECTOR (THEFT WARNING ECU ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK)

CHECK INSTRUMENT PANEL JUNCTION BLOCK (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK - THEFT WARNING ECU ASSEMBLY)

THEFT DETERRENT SYSTEM - Theft Warning ECU Power Source Circuit


DESCRIPTION

This circuit provides power for theft warning ECU assembly operation.

WIRING DIAGRAM


Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit


INSPECTION PROCEDURE

1.CHECK THEFT WARNING ECU ASSEMBLY


    Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E110-11 (+B1) - Body ground
    		Always
    		11 to 14 V


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (COROLLA_ZRE142 RM0000026P102LX.html)

2.CHECK HARNESS AND CONNECTOR (THEFT WARNING ECU ASSEMBLY - BODY GROUND)


    Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit

  1. Disconnect the E110 theft warning ECU assembly connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E110-16 (E) - Body ground
    		Always
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK)


    Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit

  1. Disconnect the 2B instrument panel junction block connector.

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2B-30 - Body ground
    		Always
    		11 to 14 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR OR SHORT PIN OR ECU-B
OK


4.CHECK INSTRUMENT PANEL JUNCTION BLOCK (POWER SOURCE)

  1. Reconnect the 2B instrument panel junction block connector.



    Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2H-12 - Body ground
    		Always
    		11 to 14 V


NG
REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
OK


5.CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK - THEFT WARNING ECU ASSEMBLY)


  1. Disconnect the 2H instrument panel junction block and E110 theft warning ECU assembly connectors.


    Corolla. Zre142 Aze141.Theft Deterrent Keyless Entry.Smart Key System (For Entry Function).Theft Deterrent System Theft Warning Ecu Power Source Circuit

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2H-12 - E110-11 (+B1)
    		Always
    		Below 1 Ω
    2H-12 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE THEFT WARNING ECU ASSEMBLY (COROLLA_ZRE142 RM00000342K00IX.html)