Lexus DTC B2795 Operating and installation instructions

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Title:
TROUBLESHOOTING IMMOBILIZER
DTC B2795
Models:
’98 & ’99 All Models
TechnicalService
InformationBulletin
March 12, 1999
EL002–99
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 B2795 Unmatched Key Code
CIRCUIT DESCRIPTION
The system outputs this DTC when an unregistered key is inserted into the ignition. If
this DTC is outputted, clear the code and insert all registered keys into the vehicle’s
ignition. If a key that outputs B2795 is found, register that key. If this DTC is no longer
outputted, then there is a possibility that an unregistered key could have been inserted in
the past, (System is Normal). Request additional information from the customer as to the
use of the system prior to this condition to find a possible cause. (Example: An
unregistered key has been inserted, etc.)
DTC No. Condition Probable Cause
B2795 SUnmatched Key Code SKey
OP CODE DESCRIPTION TIME OPN T1 T2
N/A Not Applicable to Warranty – – – –
ELECTRICAL
Introduction
Affected
Vehicles
Diagnostic
Procedure
Warranty
Information

TROUBLESHOOTING IMMOBLIZER DTC B2795 – EL002-99 March 12, 1999
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Delete the DTC and insert all presently available keys to check
whether the engine starts or not.
1
NOTE:
DTC B2795 is stored in memory when a
key that is inserted does not start the
engine.
RESULT:
(A) All keys start the engine.
(B) A specific key does not start the
engine.
NOTE:
DTC B2795 is stored in memory when a
key that is inserted does not start the
engine.
No Problem.
Register the key that does not
start the engine.
A
B
Diagnostic
Procedure