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 from RED to GREEN. | -- | Go to Step 3 | |
3 | Did the OnStar® status LED turn RED first? | -- | Go to Step 4 | Go to Step 5 |
4 | Did the OnStar® status LED turn GREEN? | -- | Go to Step 11 | Go to Step 7 |
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 in Wiring Systems. 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 in Wiring Systems. 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 vehicle interface unit (VIU). Refer to OnStar Vehicle Interface Unit 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 |
