Question about 1997 Cadillac Eldorado

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Service steering system 98 deville

No leaks and the power steering works fine but i get this message and i get a steering position malfunction code

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Check the fanbelt I had the same problem when I used my a/c. The fanbelt was worn and kept slipping when the a/c was engaged. New belt solved the problem.

Posted on Sep 28, 2011

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Please have the car put on diagnosis machine so that it can be seen exactly what the problem is! could be the steering angle sensor calibration!

Posted on Jun 18, 2009

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2008 HHR Power Steering works only once in a while need help trouble shooting


Electronic power steering . Do you know anything about automotive electronic's ? Electronic power steering control module , sensor inputs an output control ? DTC'S - diagnostic trouble codes . Electrical testing ? Do you have a professional type scan tool to check input an output data , codes ?
Power Steering System Description and Operation (Non-Turbo)
The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, not the EPS motor are serviced separately from each other or from the steering column. Any EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly.
Torque Sensor
The PSCM uses a torque sensor as it's main input for determining the amount of steering assist. The steering column has an input shaft, from the steering wheel to the torque sensor, and an output shaft, from the torque sensor to the steering shaft coupler. The input and output shafts are separated by a torsion bar, where the torque sensor is located. The sensor consists of a compensation coil, detecting coil and 3 detecting rings. These detecting rings have toothed edges that face each other. Detecting ring 1 is fixed to the output shaft, detecting rings 2 and 3 are fixed top the input shaft. The detecting coil is positioned around the toothed edges of detecting rings 1 and 2. As torque is applied to the steering column shaft the alignment of the teeth between detecting rings 1 and 2 changes, which causes the detecting coil signal voltage to change. The PSCM recognizes this change in signal voltage as steering column shaft torque. The compensation coil is used to compensate for changes in electrical circuit impedance due to circuit temperature changes from the electrical current and voltage levels as well as ambient temperatures for accurate torque detection.
EPS Motor
The EPS motor is a 12-volt brushed DC reversible motor with a 61-amp rating. The motor assists steering through a worm shaft and reduction gear located in the steering column housing.
Power Steering Control Module (PSCM)
The PSCM uses a combination of torque sensor inputs, vehicle speed, calculated system temperature and the steering calibration to determine the amount of steering assist. When the steering wheel is turned, the PSCM uses signal voltage from the torque sensor to detect the amount of torque being applied to the steering column shaft and the amount of current to command to the EPS motor. The PSCM receives serial data from the engine control module (ECM) to determine vehicle speed. At low speeds more assist is provided for easy turning during parking maneuvers. At high speeds, less assist is provided for improved road feel and directional stability. The PSCM nor the EPS motor are designed to handle 61 amps continuously. The PSCM will go into overload protection mode to avoid system thermal damage. In this mode the PSCM will limit the amount of current commanded to the EPS motor which reduces steering assist levels. The PSCM also chooses which steering calibration to use when the ignition is turned ON, based on the production map number stored in the BCM. The PSCM contains all 8 of the steering calibrations which are different in relation to the vehicles RPO's. The PSCM has the ability to detect malfunctions within the EPS system. Any malfunction detected will cause the IPC message center to display PWR STR (or Power Steering) warning message.

DTC C0000
DTC C0176
DTC C0460
DTC C0475 (with LNF)
DTC C0475 (without LNF)
DTC C0545 (without LNF)
DTC C0545 (with LNF)
DTC C0561
DTC C056D
DTC C056E
DTC C0845
Your best bet ,take it to a qualified repair shop .

Jul 07, 2017 | Cars & Trucks

1 Answer

How to fix electric power steering in 2005 cevrolet colbalt


What's wrong ? light on ? Have it checked for codes ? GM had recall for the cobalt . Do you know it has electronic power steering ?
The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions. The PSCM, torque sensor, not the EPS motor are serviced separately from each other or from the steering column. Any EPS components diagnosed to be malfunctioning requires replacement of the steering column assembly, also known as the EPS assembly.

DTC C0000
DTC C0176
DTC C0475
DTC C0545
DTC C0845
DTC C0895
Your best bet , take it to the dealer !

Apr 11, 2017 | Cars & Trucks

2 Answers

How much to replace power steering fuse on a chevy maiulb


Wrench light means you have a fault or service is due. Not sure what fault is . If it is a fuse the part cost is small, not sure about labour cost, it depends on where fuse is located but shouldn't take more than a few minutes. Hope this helps

Mar 04, 2016 | 2004 Chevrolet Chevrolet Malibu LT

2 Answers

My 2003 Cadillac deville system electric is on now my brake light don't work or my window won't let up


SERVICE ELECTRICAL SYS - 106
The IPC illuminates the SERVICE ELECTRICAL SYS -- 106 message in the DIC when one of the following conditions exist:
?€¢
The dash integration module (DIM) detects a malfunction that is related to the ignition switch.


The IPC receives a class 2 message requesting illumination from the DIM.


?€¢
There is a powertrain related code present.


The IPC receives a class 2 message requesting illumination from the PCM. Dash Integration Module (DIM)
The various DIM input and output circuits are described in the corresponding functional areas as indicated on the DIM electrical schematics.
The DIM functions include the following:
?€¢
Class 2 communication requiring DIM interaction.


?€¢
Control of exterior lamps.


?€¢
Control of front fog lights.


?€¢
Control of the headlights.


?€¢
Headlamps on with wiper input.


?€¢
Hood ajar switch input w/export.


?€¢
Horn relay control.


?€¢
Interior lamps incandescent dimming.


?€¢
Low side temperature for HVAC compressor.


?€¢
Power moding control over Class 2 serial data circuit.


?€¢
Reverse lockout solenoid control.


?€¢
Steering wheel controls input.


?€¢
Storage of the clock settings and, sending a message out on the class 2 serial data circuit in response to requests from other modules.


On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle the PMM is the DIM. The PMM receives 4 signals from the ignition switch.
To determine the correct power mode the PMM uses the following circuits:
?€¢
Accessory voltage


?€¢
Ignition 1 voltage


?€¢
Ignition 3 voltage


?€¢
Off/Run/Crank voltage


Your having a module problem , need to have it checked for DTC'S . Dealer only one for that !

Jun 16, 2015 | 2003 Cadillac Deville

1 Answer

Steering problem


You should be able to have someone scan the body computer for trouble codes and then proceed.

Jul 10, 2013 | 2005 Cadillac DeVille DTS

1 Answer

A/C service message on 98 Cadillac Deville?


On most models, you turn the key switch on but don't start the engine. Push "off" and "warm" to enter the diagnostics program.
When 70 appears on the fuel screen, push "off" and "high fan" at the same time and hold until all symbols and numbers appear, then release.

Jun 23, 2013 | 1998 Cadillac DeVille

1 Answer

98 cadillac deville noisy ps. pump , fluid does not circulate


Sounds like the bearing on the pulley that runs the Power Steering pump is shot. Have it serviced.

Aug 06, 2012 | Cars & Trucks

1 Answer

1998 Sedan Deville has service steering system warning on dash. Fluid level is full and pump appears to be good. What is the likely source?


This is most likely referring to the steering positioning sensor but to know for sure you will have to have a code reader to get the code and go from there. Sorry, but whiteout a code there is no way to tell you any more.

Sep 23, 2010 | 2002 Cadillac Deville

1 Answer

I changed engines in my 98 continental and now the power steering doesn't work. It isn't leaking and the hose isn't pinched. I checked the belts and I still can't figure it out. It was working just fine...


You may have air in the system. Start the car and move the steering wheel back and forth and keep checking the P/S fluid level while the car is running. Keep adding fluid when it's low. Keep turning the steering wheel back and forth and sooner or later the P/S system will start working again.

May 05, 2010 | 1998 Lincoln Continental

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