Toyota CH-R Service Manual: Theft Deterrent System Presence Detection (B279C)

DESCRIPTION

If an ECM that is incompatible with the immobiliser system is installed, the ECM stores this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B279C

Theft Deterrent System Presence Detection

An ECM that is incompatible with immobiliser system is installed.

ECM

  • Check for DTCs.
Vehicle Condition and Fail-safe Operation when Malfunction Detected

Vehicle Condition when Malfunction Detected

Fail-safe Operation when Malfunction Detected

Engine cannot be started

-

Related Data List and Active Test

DTC No.

Data List and Active Test

B279C

-

CAUTION / NOTICE / HINT

NOTICE:

  • If the ECM is replaced, refer to Registration.

    Click here

  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine and ECT > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Start the engine.

(b) Check for DTCs.

Powertrain > Engine and ECT > Trouble Codes

HINT:

Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

OK:

DTC B279C is not output.

Result

Proceed to

DTC B279C is not output

A

DTC B279C is output

B

A

USE SIMULATION METHOD TO CHECK

B

3.

REPLACE ECM

(a) Replace the current ECM with the proper ECM.

Click here

NEXT

END

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