Diagnosis Procedure
1.
CHECK TEL ANTENNA SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect TCU harness connector.
Turn ignition switch ON.
Check the voltage between TCU harness connector (telematics antenna side) and ground.
(+)
(−)
Voltage
(Approx.)
TCU
Connector
Terminal
M174
47
Ground
0 V
48
Is the inspection result normal?
Replace TCU. Refer to
Removal & Installation
.
Replace telematics antenna. Refer to
Removal & Installation
.
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Replace TCU. Refer to Removal & Installation
.
Replace telematics antenna. Refer to Removal & Installation.