Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the OnStar® Diagnostic System Check? | -- | Go to Step 2 | Go to OnStar System Check |
2 |
Did the LED turn GREEN. | -- | Go to OnStar System Check | Go to Step 3 |
3 | Did the OnStar® Status LED turn RED? | -- | Go to OnStar System Check | Go to Step 4 |
4 | Did the OnStar® Status LED turn GREEN? | -- | Go to Step 11 | Go to Step 5 |
5 |
Does the Voltage measure near the specified Voltage? | 7v-9v | Go to Step 9 | Go to Step 6 |
6 | Test the Keypad RED LED Supply Voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 |
7 |
Does the Voltage measure near the specified Voltage? | 7v-9v | Go to Step 9 | Go to Step 8 |
8 | Test the Keypad GRN LED Supply Voltage circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | -- | Go to Step 11 | Go to Step 10 |
9 | Replace the OnStar® Button Assembly. Refer to OnStar Button Assembly Replacement . Did you complete the repair? | -- | Go to Step 11 | -- |
10 | Replace the VIU. Refer to Vehicle Interface Unit and Vehicle Communication Unit Modules Replacement . Did you complete the repair? | -- | Go to Step 11 | -- |
11 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2 |
