- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
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.
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 C0475 (with LNF)
DTC C0475 (without LNF)
DTC C0545 (without LNF)
DTC C0545 (with LNF)
Your best bet ,take it to a qualified repair shop .
They all still need to be checked with a torque wrench periodically. ... My BA XR6 has developed a clicking/knocking usually while turning while ... There is a torque setting for the nuts, it cast into the sub member near the mounts. ... Maybe thats all the mid-life b series steering click is, the bolts coming loose.
Torque(Nm) Torque(FtLb) ... Cam chain tensioner blade to cylinder head nut ... Front and rear upper mounting bolts .... Front Suspension/Steering .... NOTE: In stages A and B a torque wrench of known and accurate calibration must be used.
I'm replacing a Teleflex rack & pinion cable in a 1985 boat. ... If you have installed a non-tilt "Back Mount Rack Helm," order Friction Kit part number ... Morse Command 200 Rack: use Teleflex Back Mount Rack for power-assisted or NFB Rack for ...torque feedback from the engine (which can make the steering wheel turn on ...
DTC C1221 LF Wheel Speed Sensor Input Signal is 0
C1222 RF Wheel Speed Sensor Input Signal is 0
DTC C1226 RF Excessive Wheel Speed Variation
DTC C1232 LF Wheel Speed Circuit Open or Shorted
DTC C1233 RF Wheel Speed Circuit Open or Shorted
DTC C1291 Open Brake Lamp Switch Contacts During Deceleration
DTC C1291 detects an open brake switch. The EBCM looks for deceleration rates that may indicate braking action. The EBCM verifies braking action by repeating the method for finding deceleration rates that indicate braking action several times. In each case, the ABS will not be available because the EBCM does not see the brake switch input.
DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage
DTC P1887 TCC Release Switch Circuit (3.4L)
DTC P1887 TCC Release Switch Circuit (2.4L)
The torque converter clutch (TCC) release switch is part of the automatic transmission fluid pressure (TFP) manual valve position switch. The TFP manual valve position switch is mounted to the transmission valve body. The TCC release switch is normally-closed.
The switch signals the PCM that the TCC is released. This is accomplished by torque converter release fluid pressure acting on the switch contact, thus opening the switch. When the voltage is high on the circuit, the PCM recognizes that the TCC is no longer engaged.
When the PCM determines that the TCC release switch is open (indicating that the TCC is not applied) and the TCC slip speed indicates that the TCC is applied, then DTC P1887 sets. DTC P1887 is a type B DTC.
You have all kind of problems , I suggest you take this to a qualified ASE certified repair shop that has the diagnostic tools to trouble shoot an repair the vehicle . Electrical testing is a must with open circuits an shorts ,plus hooking up a scan tool that reads sensor data .Not just a code reader like at the parts store . This video he has a Chrysler vehicle ,doesn't matter . Test is the same for all make an models !
The torque sensor converts the rotation torque input from the steering wheel into electric signals and sends them to the power steering ECU. C1513 is for a Power Steering System Torque Sensor 1 Malfunction, Torque Sensor Deviation Excessive.
Torque sensor (built into steering column assembly)
It is hard to say. The sub-woofer has its own amplifier, although it is supplied the sound data from the main amplifier. It could have a problem with the battery power circuit (Sub-Woofer Amplifier Connector Pin 6, LIGHT GREEN/VIOLET) or it could have a problem with the GROUND circuit (Pin 2, BLACK/LIGHT GREEN) Or it could possibly not be receiving the signal from the main amplifier (Pin 7, BROWN/ORANGE "+"), (Pin 8, RED/BLACK "-"). Or it could be that either the sub-woofer speaker is blown, or the sub-woofer amplifier is defective. There is also a "High Audio Mute" circuit that connects between the main amplifier and the sub-woofer amplifier.
Keep in Mind that WITH NO POWER STEERING AT ALL The Faster you Drive the EASYER it is to Stear Lft & Rght. Having Said that If your Car is Hard to Steer While Sitting in PARK and Turning the Steering Wheel Left AND Right , This Sounds as if your Power Steering Pump Is Bad for1 and it May have Contaminated The STEERING RACK , this is A MAIN Component in the Steering System.