Dtc B2796 No Communication In Immobiliser System

Securities. Camry. Acv40 Gsv40
Engine Immobiliser. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER

CHECK KEYS

REPLACE TRANSPONDER KEY AMPLIFIER

DTC B2796 No Communication in Immobiliser System

DTC B2798 Communication Malfunction No. 2


DESCRIPTION

These DTCs are output if a key that does not have a transponder chip is inserted into the ignition key cylinder or if communication between the key and transponder key ECU assembly is impossible.

DTC No.
DTC Detection Condition
Trouble Area
B2796
The key code cannot be transmitted
  1. Key
  2. Transponder key amplifier
  3. Transponder key ECU assembly
B2798
Key code identification cannot be completed within the specified time
  1. Key
  2. Transponder key amplifier
  3. Transponder key ECU assembly

WIRING DIAGRAM


Camry. Acv40 Gsv40.Engine Immobiliser.Engine Immobiliser System (W/ Entry And Start System). Dtc B2796 No Communication In Immobiliser System


INSPECTION PROCEDURE

NOTICE:
  1. If the transponder key ECU assembly is replaced, register the key and ECU communication ID.
  1. If the key is replaced, register the key.
1.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position and turn the intelligent tester on.

  1. Select Immobiliser in the DATA LIST and read the value displayed on the intelligent tester.

    IMMOBILISER:
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Immobiliser
    		Immobiliser system status/SET or UNSET
    		UNSET: Ignition switch ON
    SET: Without key
    		-
    OK:
    UNSET (Ignition switch ON) appears on the screen.


OK
REPLACE TRANSPONDER KEY ECU ASSEMBLY
NG


2.CHECK KEYS

  1. Insert the vehicle's other key into the ignition key cylinder.

  1. Check that the engine starts with this key.

    OK:
    The engine starts.


OK
RE-REGISTER OR REPLACE KEY THAT CANNOT START ENGINE
NG


3.REPLACE TRANSPONDER KEY AMPLIFIER

  1. After replacing the transponder key amplifier (CAMRY_ACV40 RM0000025PF001X.html) with a normally functioning amplifier, check that the engine starts.

    OK:
    The engine starts.


NG
REPLACE TRANSPONDER KEY ECU ASSEMBLY
OK

END