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

Toyota CH-R Service Manual / Theft Deterrent / Keyless Entry / Immobiliser System(w/o Smart Key System) / 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

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine and ECT > Clear DTCs

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

USE SIMULATION METHOD TO CHECK

3.	REPLACE ECM

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

Click here

END

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any part ...

Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART Immobiliser System DTC No. Detection Item Link B2780 Push Switch / Key Unlock Warning Switch Malfunction ...

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