For 1990-2009 cars

## Radio Display Inoperative, No Sound from Speakers Buick

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 |

1. Disconnect the radio.
2. Turn the ignition switch to RUN.
3. Measure the voltage from radio connector terminal F1 to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 3

3 | Repair the open or short to ground in CKT 440 (ORN). Did you complete the repair? | -- | Go to Radio/Audio System Check | --
4 | Measure the voltage from the radio connector terminal F2 to ground. Is the voltage within the specified range? | 10-15 V | Go to Step 6 | Go to Step 5
5 | Repair the open or short to ground in CKT 43 (YEL). Did you complete the repair? | -- | Go to Radio/Audio System Check | --
6 | Measure the voltage between the radio connector terminal F2 to terminal E16. Is the voltage within the specified range? | 10-15 V | Go to Step 7 | Go to Step 10
7 | Measure the voltage between the radio connector terminal F2 to terminal F10. Is the voltage within the specified range? | 10-15 V | Go to Step 8 | Go to Step 10
8 | Measure the voltage between the radio connector terminal F2 to terminal F9. Is the voltage within the specified range? | 10-15 V | Go to Step 9 | Go to Step 10
9 | Measure the voltage between the radio connector terminal F2 to terminal F8. Is the voltage within the specified range? | 10-15 V | Go to Step 11 | Go to Step 10
10 | Repair the open in CKT 351 (BLK/WHT). Did you complete the repair? | -- | Go to Radio/Audio System Check | --
11 | Replace the radio. Refer to Radio Replacement . Did you complete the repair? | -- | Go to Radio/Audio System Check | --

## Radio Display Inoperative, No Sound from Speakers Oldsmobile

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 |

1. Disconnect the radio.
2. Turn the ignition switch to RUN.
3. Measure the voltage from the radio connector terminal F1 to ground.

Is the voltage within the specified range?

10-15 V

Go to Step 4

Go to Step 3

3 | Repair the open or short to ground in CKT 440 (ORN) Did you complete the repair? | -- | Go to Radio/Audio System Check | --
4 | Measure the voltage from the radio connector terminal F2 to ground. Is the voltage within the specified range? | 10-15 V | Go to Step 6 | Go to Step 5
5 | Repair the open or short to ground in CKT 43 (YEL). Did you complete the repair? | -- | Go to Radio/Audio System Check | --
6 | Measure the voltage between the radio connector terminal F2 to terminal E16. Is the voltage within the specified range? | 10-15 V | Go to Step 8 | Go to Step 7
7 | Repair the open in CKT 351 (BLK/WHT) Did you complete the repair? | -- | Go to Radio/Audio System Check | --
8 | Replace the radio. Refer to Radio Replacement . Did you complete the repair? | -- | Go to Radio/Audio System Check | --