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.
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HOMESERVICE MANUALSDODGE AND RAM20232500 HD POWER WAGONREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESELECTRONIC CONTROL MODULES (SERVICE INFORMATION) - 2500HD (1 OF 2)MODULE, AIR SUSPENSION CONTROL (ASCM)MODULE PROGRAMMING
2023 Dodge and Ram 2500 HD Power Wagon
Module Programming
2023 Dodge and Ram 2500 HD Power WagonSECTION Module Programming
- Perform the Curb Height Measurement to get values for input to the scan tool in the next step. Refer to WHEEL ALIGNMENT, STANDARD PROCEDURE
.NOTE:
Make sure the scan tool preferences are set to metric. When writing the measured values to the Air Suspension Control Module (ASCM) they will need to be in millimeters.
- With a scan tool, using the routines under the ASCM, perform the following:
- Command the vehicle to Normal Ride Height (NRH).
- Perform the Write Suspension Height Values routine and input measurements recorded as prompted by scan tool.
- Perform the Curb Height Measurement again and verify specifications. Refer to WHEEL ALIGNMENT, STANDARD PROCEDURE .
- Run the Height Sensor Check routine on the air suspension system.
- Enable the air suspension system.
- Perform the ASCM verification test. Refer to STANDARD PROCEDURE .
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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.