Test Description
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 5: This step tests the ground circuit.
Power Take-Off (PTO) Indicator Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Power Take-Off (PTO) Schematics | |||
| 1 | Did you perform the Diagnostic System Check - Power Take-Off? | Go to Step 2 | Go to Diagnostic System Check - Power Take-Off (PTO) |
| 2 | Did you review the Power Take-Off Description and Operation and perform the necessary inspections? | Go to Step 3 | Go to Power Take-Off (PTO) Description and Operation |
| 3 | Verify the fault is present. Does the system operate normally? |
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 4 |
| 4 | Does the PTO solenoid engage? | Go to Step 5 | Go to Power Take-Off (PTO) Does Not Engage |
| 5 |
|
Go to Step 6 | Go to Step 7 |
| 6 | Repair the open or high resistance in both ground circuits 8 and 1850. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 8 | - |
| 7 | Replace the PTO switch. Refer to Power Take-Off (PTO) Switch Replacement . Did you complete the replacement? |
Go to Step 8 | - |
| 8 | Test drive the vehicle and operate the PTO system as described in the supporting test. Does the symptom occur? |
Go to Step 4 | System OK |