Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 eisy cib27979
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DI-624
DIAGNOSTICS - ENGINE IMMOBILISER SYSTEM
DI1KP-07
DTC B2797/99 Communication Malfunction No.1
CIRCUIT DESCRIPTION
This code is detected when although the communication has been performed normally, an error occurs.
(Example. Some noise is inclueded in communication line.)
DTC No. DTC Detecting Condition Trouble Area
S Wire Harness
B2797/99 Communication error S Transponder Key Amplifier
S ECM
WIRING DIAGRAM
Transponder Key ECM
Amplifier
28
2 BR-W
E9 CODE
19
3 BR-R
E9 RXCK
18
4 BR-Y
E9 TXCT
I03114
2001 SIENNA (RM787U)
Author : Date : 778
DI-625
DIAGNOSTICS - ENGINE IMMOBILISER SYSTEM
INSPECTION PROCEDURE
1 Noise check
PREPARATION:
Insert already registered master key in the key cylinder.
CHECK:
Using an oscilloscope or TOYOTA hand-held tester, check that
noise is included in the CODE terminal of ECM.
OK:
No noise is detected.
Noise
I02681 NG Try to find the cause of the noise and remove it.
OK
2 Does it operate normally after replacement of transponder key amplifier?
Yes Replace transponder key amplifier.
No
Replace ECM.
2001 SIENNA (RM787U)
Author : Date : 779
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