Antenna Inoperative - Fixed Mast. Pontiac Sun Runner - 4WD (Canada) 1998

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Radio/Audio System Check? | -- | Go to Step 2 | Go to Radio/Audio System Check

2

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. Use a digital multimeter in order to measure the resistance between the coax (outer conductor), the radio connector, and the negative battery cable.

Is the resistance greater than the specified value?

0.15 ohms

Go to Step 3

Go to Step 4

3

1. Inspect the base of the antenna for a good connection to the body ground.
2. Inspect the coaxial cable interconnects for a poor connection or corrosion.
3. Inspect the ground connection from the negative battery cable to the body.
4. Repair the antenna ground circuit, as needed.

Is the repair complete?

--

Go to Radio/Audio System Check

--

4

1. Grasp the antenna mast.
2. While observing the digital multimeter, wiggle the antenna.

Does the digital multimeter indicate intermittent continuity?

--

Go to Step 3

Go to Step 5

5 | Using a digital multimeter, measure the resistance between the radio coaxial lead-in connector (center conductor) and the antenna mast. Is the resistance greater than the specified level? | 0.15 ohms | Go to Step 6 | Go to Step 7

6

1. Inspect the coaxial cable interconnects for a poor connection or corrosion.
2. Repair or replace the antenna coaxial circuit as needed. Refer to Speaker Noise - General .

Is the repair complete?

--

Go to Radio/Audio System Check

--

7

1. Grasp the antenna mast.
2. While observing the digital multimeter, wiggle the antenna.

Does the digital multimeter indicate intermittent continuity?

--

Go to Step 8

Go to Step 9

8

1. Inspect the coaxial cable interconnects for a poor connection or corrosion.
2. Repair or replace the antenna coaxial circuit as needed. Refer to Speaker Noise - General .

Is the repair complete?

--

Go to Radio/Audio System Check

--

9 | Refer to Speaker Noise - General . Is the repair complete? | -- | Go to Radio/Audio System Check | --