Silverado Classic 1500 4WD V8-5.3L Hybrid (2007)
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, before using the Symptom Tables in order to verify that all of the following are true: See: Testing
and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System Check - Vehicle
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There are no powertrain control module (PCM) or throttle actuator control (TAC) module DTCs set.
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The PCM and TAC module can communicate to each other via the serial data links.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to Power Take-Off (PTO) Description and
Operation.
Visual/Physical Inspection
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Inspect the upfitter connections of the PTO system. Refer to Checking Aftermarket Accessories. See: Testing and Inspection/Component Tests and
General Diagnostics
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Inspect the easily accessible, or the visible system components for obvious damage or conditions which could cause the symptom.
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Inspect the transmission and the hydraulic pump for the proper fluid level.
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
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
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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
