service ride control
Thread Starter
Racer
Joined: Jan 2007
Posts: 383
Likes: 33
service ride control
Had may 05 six months ,just turned 18,000 miles and service ride control came up, I doubt that the track mode has ever been used, I tried using it to see if the message would go away, it did not, what could be the cause and is it something the dealer is going to have to look at. thanks Mike
Instructor
Joined: Sep 2009
Posts: 182
Likes: 4
From: San Diego
I had the same problem a couple of weeks ago on my 09. The message was to service the traction control and active handling system. It ended up that my brake fluid was low so I was getting a low brake fluid message which then kicked off the traction control service message. The dealer added Brake fluid and the message went away.
Safety Car
Joined: Nov 2006
Posts: 4,023
Likes: 266
From: San Jose California
Had may 05 six months ,just turned 18,000 miles and service ride control came up, I doubt that the track mode has ever been used, I tried using it to see if the message would go away, it did not, what could be the cause and is it something the dealer is going to have to look at. thanks Mike
Z//
Racer
Joined: Feb 2007
Posts: 313
Likes: 0
continues to come back
I have a 2007 with F55. The car has 23,000 miles on it. I just got the message “service ride control” I clear it and it comes back in 20 – 30 minutes. I have switched the selector to sport and then back to tour and it seems to me all is working correctly that way. My interest is to know what might be the cause of the message before I take it in.
Anyone have an experience with this and any easy solution? I would like to check it out myself before taking it in.
Anyone have an experience with this and any easy solution? I would like to check it out myself before taking it in.
Safety Car
Joined: Dec 2006
Posts: 4,592
Likes: 1,672
From: Pearland / Houston Tx
basic info from the shop manual on "Service Ride Control" message:
Electronic Suspension Control Description
The Electronic Suspension Control system is a Magneto-Rheological Real Time Damping (MRRTD) system and independently controls the fluid viscosity in each strut and shock absorbers to control the vehicle ride characteristics.
The following are involved in the operation of the ESC system:
• Electronic suspension control module (ESCM)--Controls and detects failures in the ESC system. The ESCM controls the damping force at all 4 shock absorbers individually for a soft or firm ride. It receives inputs from vehicle speed, steering wheel position, suspension position, and lift/dive status to determine the amount of damper control to the shocks electrical coil.
• Front/rear suspension position sensors--The ESC module provides a 5-volt reference and low reference to all 4 of the body-to-wheel suspension position sensors. The sensors send the ESCM a signal voltage that is relative to the suspension ride height used to determine the amount of damper control. The sensors valid range is 0.35-4.75 volts.
• Front struts/rear shock absorbers have an internal electrical coil, and micron sized metal particles in the fluid.
• Vehicle speed--The ESCM receives a serial data message for vehicle speed input, and is used to determine the amount of damper control.
• Steering wheel position--The ESCM receives a serial data message for steering wheel position input and uses this as an indication of the position and rotation of the steering wheel to determine the amount of damper control.
The ESCM monitors the inputs from the front/rear suspension position sensors, vehicle speed, and steering wheel position. The ESCM calculates the inputs to control 0-100 percent of PWM current to the coil within each strut or shock, increasing the fluids viscosity by aligning the metal particles with each other. This increases or decreases the suspension damping force in both compression and rebound directions.
When the ESCM detects a malfunction and sets a DTC. The system disables, and defaults with a fail-soft action, then sends a serial data message for the Instrument Panel Cluster (IPC) to display service suspension system and speed limited to 80 mph warning messages.
The ESC system uses an ignition cycling diagnostic approach in order to reduce the occurrence of false or intermittent DTCs that do not affect the functionality of the ESC system. This allows the fail-soft actions to be taken whenever a malfunction condition is current, but requires the malfunction to be current for 3 consecutive ignition on cycles before the corresponding malfunction code and message will be stored or displayed.
Electronic Suspension Control Description
The Electronic Suspension Control system is a Magneto-Rheological Real Time Damping (MRRTD) system and independently controls the fluid viscosity in each strut and shock absorbers to control the vehicle ride characteristics.
The following are involved in the operation of the ESC system:
• Electronic suspension control module (ESCM)--Controls and detects failures in the ESC system. The ESCM controls the damping force at all 4 shock absorbers individually for a soft or firm ride. It receives inputs from vehicle speed, steering wheel position, suspension position, and lift/dive status to determine the amount of damper control to the shocks electrical coil.
• Front/rear suspension position sensors--The ESC module provides a 5-volt reference and low reference to all 4 of the body-to-wheel suspension position sensors. The sensors send the ESCM a signal voltage that is relative to the suspension ride height used to determine the amount of damper control. The sensors valid range is 0.35-4.75 volts.
• Front struts/rear shock absorbers have an internal electrical coil, and micron sized metal particles in the fluid.
• Vehicle speed--The ESCM receives a serial data message for vehicle speed input, and is used to determine the amount of damper control.
• Steering wheel position--The ESCM receives a serial data message for steering wheel position input and uses this as an indication of the position and rotation of the steering wheel to determine the amount of damper control.
The ESCM monitors the inputs from the front/rear suspension position sensors, vehicle speed, and steering wheel position. The ESCM calculates the inputs to control 0-100 percent of PWM current to the coil within each strut or shock, increasing the fluids viscosity by aligning the metal particles with each other. This increases or decreases the suspension damping force in both compression and rebound directions.
When the ESCM detects a malfunction and sets a DTC. The system disables, and defaults with a fail-soft action, then sends a serial data message for the Instrument Panel Cluster (IPC) to display service suspension system and speed limited to 80 mph warning messages.
The ESC system uses an ignition cycling diagnostic approach in order to reduce the occurrence of false or intermittent DTCs that do not affect the functionality of the ESC system. This allows the fail-soft actions to be taken whenever a malfunction condition is current, but requires the malfunction to be current for 3 consecutive ignition on cycles before the corresponding malfunction code and message will be stored or displayed.
