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.
Transfer Case Shift Control Module Scan Tool Information
2009 Saab 9-7X 5.3iSECTION Transfer Case Shift Control Module Scan Tool Information
Scan Tool Data Parameters
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Engine is at idle, upper radiator hose is hot, closed throttle, gear is in PARK or NEUTRAL, and accessories are OFF. | ||
| ATC Application | Varies | This parameter displays the model number assigned to the transfer case. The scan tool displays a numeric value. |
| ATC Slip Speed | 0 | This parameter displays the RPM difference between the front and rear propshafts. The scan tool displays a range of 0-8,192 RPM. |
| Battery Voltage | Battery Voltage | This parameter displays the voltage measured by the transfer case shift control module at the transfer case shift control module battery feed. The scan tool displays a range of 0-25.5 volts. |
| Calibration Part Number | Varies | This parameter displays the part number assigned. The scan tool displays a numeric value. |
| Clutch Pedal Engaged | No | This parameter displays On when the clutch pedal is depressed. The scan tool displays On or Off. |
| Current Slip Adapts | Varies | This parameter displays corrective adjustments made by the transfer case shift control module for wheel slip events. The scan tool displays a numeric value. |
| Encoder Gear Position | 2WD | This parameter displays the mode the transfer case is currently in. |
| Encoder Return Voltage | Varies | This parameter displays the voltage measured by the transfer case shift control module at the encoder signal return. The scan tool displays a range of 0-7.5 volts. |
| Encoder Supply Voltage | 5 volts | This parameter displays the voltage measured by the transfer case shift control module at the encoder power supply. The scan tool displays a range of 0-7.5 volts. |
| End Model Part Number | Varies | This parameter displays the part number assigned. The scan tool displays a numeric value. |
| Front Propshaft Speed | 0 | This parameter displays the rotational speed of the front propshaft. The scan tool displays a range of 0-8,192 RPM. |
| Ign. Cycles Since Last Current DTC | Varies | This parameter displays how many ignition cycles have occurred since last current DTC was set. The scan tool displays a numeric value. |
| Rear Propshaft Speed | 0 | This parameter displays the rotational speed of the rear propshaft. The scan tool displays a range of 0-8,192 RPM. |
| Service 4WD Lamp | Off | This parameter displays On if the transfer case shift control module commands the Service 4WD lamp, or message, On. The scan tool displays On or Off. |
| Slip Adapt PWM | 0 | This parameter displays the duty cycle applied to the transfer case encoder motor. The scan tool displays a range of 0-100 percent. |
| Software Part Number | Varies | This parameter displays a numeric value indicating which version of software is currently installed in the transfer case shift control module. |
| Total Slippage | 0 | This parameter displays the total slippage of both the front and rear propshafts. The scan tool displays a range of 0-8,192 RPM. |
Scan Tool Output Controls
| Output Control | Description |
|---|---|
| Refer to the scan tool manual for complete scan tool operating instructions. | |
| ATC Motor B Control | This function allows the technician to command the motor in one direction, placing the vehicle in AWD mode. |
RENDER: 1.0x
NO RELATED
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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.