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

1. Disconnect the negative battery cable.
2. Disconnect the antenna lead-in harness connector at the radio receiver.
3. Use a 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 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 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 Step 9

--

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

Is the repair complete?

--

Go to Step 9

--

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 1