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.
Scan Tool Data List
The Shift lock Control Scan Tool Data List contains all shift lock control related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Shift Lock Control Scan Tool Data List only after the following is determined:
- The Diagnostic System Check - Vehicle is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly.
Scan tool values from a properly functioning system may be used for comparison with the system you are diagnosing. The Shift Lock Control Scan Tool Data List represents values that would be seen on a normal functioning system engine.
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Automatic Transmission Shift Lock Control for diagnosis.
The column labeled Data List indicates where a parameter can be located on the scan tool. Refer to the scan tool operating manual for the exact locations of the data lists. The following is a description of each term listed:
- Cruise/Traction
-
Cruise/Traction Data List
- Eng
-
Engine Data List
- Electrical/Theft
-
Electrical/Theft Data List
- IPC
-
IPC Data List
- MT
-
Manual Transmission Data List
- TAC
-
Throttle Actuator Control (TAC) Data List
| Scan Tool Parameter | Data List | Parameter Range/Units | Typical Data Values |
|---|---|---|---|
| Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories Off | |||
| BPP Signal | Electrical/Theft, Cruise/Traction, Eng, TAC | Applied/Released/Invalid | Released |
| BPP Circuit Signal | Electrical/Theft, TAC | Applied/Released | Released |
| Current Gear | IPC | Transmission Gear Position | 1,2,3,4,5,6 |
| Ext Travel BPP Signal | TAC | Applied/Released/Invalid | Released |
| PNP Switch (If Equipped) | Electrical/Theft | Park, Reverse, Neutral, Drive, 4, 3, 2, 1 | Park |
| TCC/Cruise Brake Pedal Switch | MT, TAC | Applied/Released | Release |
| TR Sw | Eng | Transmission Gear Position | Varies |
Use the Manual With the Right Hardware
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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.