Suspension

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When converting ADS struts to regular struts (usually much cheaper), place 2Ω 10W resistor inside each connector for ADS front struts to bypass the now missing electrical damper part.
- Fixes the “7-9 active damper control unit internal circuit malfunction” code in the ADS unit and light on a dash (e.g. 2010 MDX)

C2212 ECU in Plant Mode
1. System is in in-plant mode. Use a scan tool to perform “Fill From Reservoir Routine”. Choose any one shock to fill. This should take it out of the in-plant mode.
2. Clear the C2212-00 code. Now the air suspension should raise the vehicle after the engine is started. Keep all doors and lift gate closed.

📎 OEM Shock Absorber Bypass | 2007 Cadillac XLR
- Installed aftermarket regular springs.
  - OEM shock absorber had a built-in solenoid. Aftermarket don’t.
- Placed 6Ω / 50W resistor in each spring’s connector to bypass.
- No more codes.

Note: You need to have +-3mm precision (use a metric ruler).
- If it will not go through calibration due to measurements errors, computer will store C1A00-control module fault and will be there until you go through calibration successfully.

Make sure that there are no codes stored in Ride Leveling Module.
Set a hight level to a ‘normal mode’ (middle indicator ON, others OFF)
Start a vehicle for 5 mins to make sure that air pump will pressurize the system to the required level.
Enter calibration through ‘Service Functions’.
- Once procedure has been started, it has to be completed since it clears old values from the computer’s memory.
Computer will try to set a vehicle to specific height. Wait for 1-2 mins for it to complete.
Enter measurements in mm from the center of the wheel to a fender arc
- 378mm < measurement < 597mm
After 4 measurements has been entered, car will randomly change its height for you to take a second set of measurements.
After this step has been passed successfully, calibration should be complete.