Diesel Data: Automotive Repair

Antenna: Testing and Inspection

INSPECTION

1. Auto antenna models
INSPECT ANTENNA MOTOR




a. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2.
b. Check that the motor turns (moves upward).

NOTE: These tests must be done quickly (within 3 - 5 seconds) to prevent the coil from burning out.




c. Then, reverse the polarity, check that the motor turns the opposite way (moves downward).

NOTE: These tests must be done quickly (within 3 - 5 seconds) to prevent the coil from burning out.
If the operation is not as specified, replace the motor.

2. Auto antenna models
INSPECT ANTENNA MOTOR CONTROL RELAY CIRCUIT







Disconnect the connector from the relay and inspect the connector on wire harness side.
If the circuit is not as specified, replace the relay.