Important: Complete the following steps before you measure the resistance of the antenna:

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Disconnect the antenna lead-in harness connector at the radio receiver.
3. Use a J 39200 DMM in order to measure the resistance between the antenna lead-in harness connector and ground.

Is the reading greater than the specified value?

0.15 ohms

Go to Step 8

Go to Step 2

1. Leave the J 39200 DMM connected.
2. Wiggle the antenna lead-in harness connector at the antenna base.

Does the meter indicate continuity intermittently?

--

Go to Step 8

Go to Step 3

Is the coax cable type RG-58 or RG-59?

--

Go to Step 4

Go to Step 5

Is the measured resistance less than the specified value?

0.2 ohms

Go to Step 6

Go to Step 7

For RG-62 or RG-62M, is the measured resistance less than the specified value?

3.5 ohms

Go to Step 6

Go to Step 7

While observing the J 39200 DMM, wiggle the antenna coax.

Does the meter indicate continuity intermittently?

--

Go to Step 7

Go to Step 8

Replace coaxial cable. Refer to Radio Antenna Cable Extension Cable Replacement for service procedure.

Is the repair complete?

--

Go to Radio/Audio System Check

--

Replace the antenna. Refer to Fixed Antenna Mast Replacement or Radio Antenna Replacement for service procedure.

Is the repair complete?

--

Go to Radio/Audio System Check

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