Question about 2003 Cadillac Escalade
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Posted on Jan 02, 2017
SOURCE: service ride control
I have a 2004 GMC Yukon Denali and I was told to replace the rear shocks, but a day later the light was still on. Now I'm being told that this is common in this vehicle model. I am confronted with the replacement of the RIDE CONTROL PUMP, MODULE and CONTROL ASSEMBLY ($1,082). I'm getting asecond opinion at the dealership.
Posted on Jan 22, 2010
Sounds like your air ride is malfunctioning could be a defect in bag,line, or sensor or possibly more the ecm should fire out a code if you have a code reader
Posted on Jan 05, 2011
SOURCE: how reset warning (service ride
You can go to a parts store like Advance Auto Parts and borrow a code reader. You can plug it into your port (typically under the drivers side dash) and it will give you the code for the light which you can also reset the warning.
Posted on Mar 15, 2011
The first place to start is to have Ride Control Module scanned for trouble codes, this requires a high end scan tool. Most common problem is the air compressor in the rear or a height sensor. Here is how the system works.
Automatic Level Control Description and Operation
The RTD system is bi-state real time damping system. The Suspension Control module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system and electronic variable orifice (EVO) power steering system.
The Automatic Level Control system consists of the following:
• Suspension Control Module
• Compressor/Leveling Module
- Air Pressure Sensor
- Exhaust Solenoid
• Compressor Motor Relay
The objective of the Automatic Level Control System is to provide constant ride height at all load conditions. The Suspension Control module monitors body-to-wheel height, and vehicle speed.
The Suspension Control module will use the rear body-to-wheel displacements and vehicle speed inputs to keep the rear trim height of the vehicle at its desired level.
The electronic suspension control (ESC) system is bi-state real time damping system. The ESC module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system, if 1500 series.
The ESC system consists of the following:
• The ESC module
• The compressor/leveling module, if 1500 series
- The air pressure sensor, if 1500 series
- The exhaust solenoid, if 1500 series
• The compressor motor relay, if 1500 series
• The steering handwheel speed/position sensor
• The suspension damper solenoids
• The suspension position sensors
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Posted on Nov 16, 2011
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