The AC Module would be in the scan tool as a B code (body) that covers functions that are, generally, inside of the passenger compartment. These functions provide the driver with assistance, comfort, convenience, and safety.
What we need is the C code related to the Ride Control system. Chassis (C-codes) category covers functions that are, generally, outside of the passenger compartment. These functions typically include mechanical systems such as brakes, steering and suspension.
What I'd like you to try is go through the code clearing process to reset the trip counter. Ignition cycle counting is used by the ESC module to detect faults in the system. The objective is to eliminate false/intermittent codes while maintaining an acceptable level of system performance. The operation of the ignition cycle counting requires that a fault condition be present for 4 consecutive ignition cycles before it will set the fault code and display the Service Ride Control message. If a fault code is present, without a fault being current, the system will go into one or more degraded modes without displaying a message. Resetting the ignition cycle counter is done by clearing codes with a scan tool. Clearing codes will override ignition cycle counting for one ignition cycle. Therefore, a fault condition will set the fault code immediately if it occurs on the first ignition cycle after the codes are cleared.
If the light comes back on, try and read codes before shutting off the engine if you can because that would be a hard code. Hopefully, one will set to give us a direction to go in.
Let us know. Glenn
Thursday, November 19th, 2020 AT 9:10 PM