ANTENNA BODY AND CABLE

WARNING: On vehicles equipped with airbags, (refer to electrical/restraints) before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Failure to take the proper precautions could result in accidental airbag deployment and possible personal injury.

The following four tests are used to diagnose the antenna with an ohmmeter:

• Test 1 - Mast to ground test
• Test 2 - Tip-of-mast to tip-of-conductor test
• Test 3 - Body ground to battery ground test
• Test 4 - Body ground to coaxial shield test.

The ohmmeter test lead connections for each test are shown in Antenna Tests .

NOTE: This model has a two-piece antenna coaxial cable. Tests 2 and 4 must be conducted in two steps to isolate an antenna cable problem. First, test the primary antenna cable (integral to the antenna body and cable) from the coaxial cable connector behind the right side of the instrument panel between the radio and the right side cowl panel, to the antenna body. Then, test the secondary antenna cable (instrument panel antenna cable) from the coaxial connector behind the right side of the instrument panel between the radio and the right side cowl panel, to the coaxial cable connector at the radio.

TEST 1

Test 1 determines if the antenna mast is insulated from the base. Proceed as follows:

TEST 2

Test 2 checks the antenna for an open circuit as follows:

TEST 3

Test 3 checks the condition of the vehicle body ground connection. This test should be performed with the battery positive cable removed from the battery. Disconnect both battery cables, the negative cable first. Reconnect the battery negative cable and perform the test as follows:

TEST 4

Test 4 checks the condition of the ground between the antenna base and the vehicle body as follows: