Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0701: Transmission Control System Performance: Testing
2004 Oldsmobile Bravada AWDSECTION Testing
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0701: TRANSMISSION CONTROL SYSTEM PERFORMANCE
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: 2.2L VIN F Engine Controls Schematics in SYSTEM WIRING DIAGRAMS and DATA LINK CONNECTOR (DLC) SCHEMATICS (A/T) in Data Link Communications | |||
| Connector End View Reference: Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Engine Controls? | Go to Step 2 | Go to DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS |
| 2 | 1. Turn ON the ignition, with the engine OFF. 2. Attempt to establish communication with the engine control module (ECM). Does the scan tool communicate with the ECM? |
Go to Step 3 | Go to SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications |
| 3 | Select the DTC Information for the body control module (BCM), on the scan tool. Does the scan tool display any DTCs which begin with a U? |
Go to DIAGNOSTIC TROUBLE CODE (DTC) LIST in Data Link Communications | Go to Step 4 |
| 4 | Select the DTC Information for the ECM. Does the scan tool display DTC P0107 or DTC P0108? |
Go to diagnostics for that DTC | Go to Step 5 |
| 5 | Select the DTC Information for the ECM. Does the scan tool display DTC P0502 or DTC P0503? |
Go to diagnostics for that DTC | Go to Step 6 |
| 6 | 1. Clear the DTCs with a scan tool. 2. Turn OFF the ignition for 90 seconds. 3. Start the engine. 4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. Did the DTC fail this ignition? |
Go to Step 2 | Go to Step 7 |
| 7 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
Go to DIAGNOSTIC TROUBLE CODE DEFINITIONS List | System OK |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.