FD2 - Check Operation of Stoplamps

- Key "ON".

- Check stoplamp operation.

Stoplamps operate normally -- Go to FD3. FD3 - Check For BOO Circuit Cycling

Stoplamps never On -- Go to FD4. FD4 - Check For Power to Brake Switch

Stoplamps always On -- Go to FD5. FD5 - Verify Brake Switch Is Not Always Closed