B58697
B86350
Wire Harness Side
T7
Transponder Key ECU Assy
IG
GND
--
DIAGNOSTICS
ENGINE IMMOBILIZER SYSTEM (1ND--TV)
05--405
COROLLA Supplement (RM1129E)
4
CHECK WIRE HARNESS(TRANSPONDER KEY ECU -- BATTERY AND BODY
GROUND)
(a)
Disconnect the T7 ECU connector.
(b)
Measure the resistance and voltage of the wire harness
side connector.
Standard:
Tester Connection
Condition
Specified Condition
T7--2 (IG) -- Body ground
Ignition switch OFF
0 V
T7--2 (IG) -- Body ground
Ignition switch ON
10 to 14 V
T7--14 (GND) --
Body ground
Always
Below 1
Ω
NG
REPAIR
OR
REPLACE
HARNESS
AND
CONNECTOR
OK
REPLACE TRANSPONDER KEY ECU ASSY
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TOYOTA COROLLA REPAIR MANUAL SUPP 1129E