Sierra 1500 2WD V8-6.0L Hybrid (2010)
Power Take-Off: Testing and Inspection
Symptoms - Power Take-Off (PTO)
Symptoms - Power Take-Off (PTO)
Important: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) , before using the Symptom Tables in order to verify that all of the following are true:
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There are no DTCs set.
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The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to Cruise Control Description and Operation (See:
Cruise Control/Description and Operation).
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the Power Take-Off system. Refer to Checking Aftermarket Accessories (See:
Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Checking Aftermarket Accessories).
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections (
See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent
Conditions and Poor Connections).
Symptom List
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Power Take-Off (PTO) Does Not Engage (See: Power Take-Off (PTO) Does Not Engage)
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Engine RPM Does Not Increase with Power Take-Off Engaged (See: Engine RPM Does Not Increase With Power Take-Off Engaged)
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Power Take-Off (PTO) Indicator Inoperative (See: Power Take-Off (PTO) Indicator Inoperative)