Lexus DTC B2796 Manual de usuario

LexusSupportsASECertification

Page 1 of 3

Title:

TROUBLESHOOTING IMMOBILIZER

DTC B2796

Models:

’98 & ’99 All Models

TechnicalService

InformationBulletin

March 12, 1999

EL003–99

The Diagnostic Section (DI) of the Repair Manual has been expanded and clarified to

assist in troubleshooting the Engine Immobilizer System. Use this information in

accordance with the current Repair Manual for each model to diagnose the system.

S1998 and 1999 All Models

DTC B2796 No Communication In

Immobilizer System

CIRCUIT DESCRIPTION

This DTC is stored in memory when a key that does not have a Transponder Chip is

inserted into the ignition or if there is loss of communication between the key and ECM.

DTC No. Condition Probable Cause

B2796 SNo Communication

SKey

STransponder key coil

STransponder key amplifier

SWire harness

SECM

OP CODE DESCRIPTION TIME OPN T1 T2

N/A Not Applicable to Warranty – – – –

ELECTRICAL

Introduction

Affected

Vehicles

Diagnostic

Procedure

Warranty

Information

TROUBLESHOOTING IMMOBLIZER DTC B2796 – EL003-99 March 12, 1999

Page 2 of 3

Delete the DTC and insert all presently available keys to check

whether the engine starts or not.

RESULT:

(A) All keys start the engine.

(B) A specific key does not start the

engine. DTC (B2796) is stored in

memory.

DTC (B2796) is stored in memory.

NOTE:

If the result is “A”, seek additional

information from the customer to see if

he/she ever inserted a key without a

Transponder Chip into the ignition.

No Problem.

Replace the Transponder Key Coil.

The Transponder Chip of a specific

key is defective. Replace the key.

Check the Transponder Key Coil. Refer to the Transponder Key

Coil Inspection Procedure in the Repair Manual.

Diagnostic

Procedure

TROUBLESHOOTING IMMOBLIZER DTC B2796 – EL003-99 March 12, 1999

Page 3 of 3

Check the harness and connector between the Transponder Key

Amplifier and ECM.

Repair or replace the damaged

harness and/or connector.

Replace the Transponder Key

Amplifier.

Exchange the Transponder Key Amplifier with a known good one.

Does the system operate normally?

Replace the ECM.

YES

Otros manuales de Accesorios para automóviles de Lexus

Lexus

Lexus IS200 Manual de usuario

Lexus

Lexus REMOTE ENGINE STARTER TVIP V4 Manual de usuario

Lexus

Lexus LINK Manual de usuario

Lexus

Lexus LS600h Instrucciones de uso

Lexus

Lexus PZ408-00692-00 Manual de usuario

Lexus

Lexus RX 350 Instrucciones de uso

Lexus

Lexus 89661-50690 Instrucciones de funcionamiento e instalación

Lexus

Lexus PZ401-C0554-00 Manual de usuario

Lexus

Lexus PZ416-K2340-ZA Manual de usuario

Lexus

Lexus 2002 RX 300 Navigation system Manual de usuario

Lexus

Lexus GS300 Manual de usuario

Lexus

Lexus PG001-06 Instrucciones de funcionamiento e instalación

Lexus

Lexus PZ41B-X2620-00 Manual de usuario

Lexus

Lexus GS 450h Instrucciones de uso

Lexus

Lexus iPod integration kit Manual de usuario

Lexus

Lexus ES350 Manual de usuario

Lexus

Lexus RX 350 2010 Manual de usuario

Lexus

Lexus IS 300 Instrucciones de uso

Manuales populares de Accesorios para automóviles de otras marcas

James Baroud

James Baroud Odyssey Manual de usuario

Motorola

Motorola i50sx Manual de usuario

Yakima

Yakima 9MM STANDARD BIKE MOUNT Manual de usuario

Feniex

Feniex T3 Manual de usuario

Renault

Renault 77 11 423 180 Manual de usuario

Kia

Kia E8300-4D000 Manual de usuario

Brink

Brink 756843 Manual de usuario

Whispbar

Whispbar K085W Manual de usuario

v.link

v.link CI-VL2-PC-HSD Manual de usuario

Viking

Viking Stack-Rack Guía de configuración rápida

Aries

Aries 203015 Manual de usuario

Choetech

Choetech AT0005 Manual de usuario

ZZ2

ZZ2 ZZAIR-PRO Manual de usuario

Holman

Holman 4A80L Manual de usuario

Thule

Thule 2075 Manual de usuario

Motorola

Motorola T325 Manual de usuario

TAUBENREUTHER

TAUBENREUTHER 16-3950 Guía de instalación

DV8

DV8 FBJL-02 Manual de usuario