Hummer H1 Service Manual page 1162

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DTC P0571 - Cruise Brake Switch Circuit
Step
16 Replace the faulty PCM. Notice: If the PCM is faulty, the new PCM must be
programmed. Go to PCM replacement and programming procedures.
Is the action complete?
17 1. Using the Scan Tool, select "DTC", "Clear Info".
2. Start engine and idle at normal operating temperature.
3. Select "DTC", "Specific", then enter the DTC number which was set.
4. Operate vehicle within the conditions for setting this DTC as specified in the
supporting text.
Does the Scan Tool indicate that this diagnostic Ran and Passed?
18 Using the Scan Tool, select "Capture Info", "Review Info".
Are any DTCs displayed that have not been diagnosed?
05745159
Action
PCM/Tech 1 Scan Tool 97
Value(s) Yes
— Go to Step 17.
— Go to Step 18. Go to Step 2.
— Go to the
applicable
DTC table
No
—
System OK.