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B62676
B85928
T7
Transponder Key ECU Assy
VC12
CODE
TXCT
AGND
G
1
3
6
4
TXCT
GND
Antenna
Coil
+B
CODE
Amplifier
V
P
B
ANT2
ANT1
T6
Tr ansponder Key Amplifier
2
5
13
12
R
4 5
RXCK
RXCK
05 -- 406
--
DIAGNOSTICS
ENGINE IMMOBILIZER SYSTEM (1ND -- TV)
COROLLA Supplement (RM1129E)
TRANSPONDER KEY AMPLIFIER CIRCUIT
CIRCUIT DESCRIPTION
Inserting the key into the ignition key cylinder will activate the transponder key ECU,and it will begin commu -
nication with the transponder key amplifier.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK FOR CODE
(a) Insert the master key or sub -- key into the ignition key cylinder.
(b)
Check for code
OK: Code 21 or 22 is output.
NG
OK
END
05LVG--02
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E