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DIAGNOSTIC CODE U0121

Power steering system not working and abs warning light on

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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ElDopa
  • 295 Answers

SOURCE: 02 VW Polo 1.2 steering wheel warning lights on

Red this article:

Eventhough the level is right, the fluid might need replacing (every 3~5 years and 50.000-100.000 miles).

You can read how to recognize bad/old fluid here: http://www.hondaclub.com/forum/articles/1492-power-steering-fluid-lifeline-your-steering-system.html

Posted on Aug 25, 2009

Testimonial: "good spot on advice "

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SOURCE: Engine warning light came on. Diagnostic

P0411-Secondary Air Injection Incorrect Upstream Flow Detected. Could be the vacuum hose, combi-valve, and/or the pump http://www.passatworld.com/forums/showthread.php?t=170246. Read that thread and see if you think you or maybe somebody you know can tackle the problem.

Posted on Feb 09, 2010

noranda21
  • 1547 Answers

SOURCE: Driving home today in our

it could be causeed by one problem which led to other problems it sounds to me like your car was shuting down abs stands for anti brakeing sytem that didnt do it that light comes on when theres a fault in the brakes have you had any trouble with your brakes lately when you turn key on with out starting car does the lights still come on the the not haveing power steering issue that was from your car dieing you only have power steering when car is running when you say epc light what do you mean by epc sounds to me like something shorted out causeing the ecm to do that or you have a bad battery them lights will come on if your car dies and you dont notice it

Posted on Dec 11, 2010

  • 288 Answers

SOURCE: Driving home today in our 2004 Jetta. first the

WILL THE ENGINE START? IT SOUNDS LIKE THE BATTERY IS LOW OR THE BATTERY CABLES & TERMINALS NEED TO BE CLEANED. TAKE THE NEG. CABLE OFF FIRST THEN THE POSITIVE, CLEAN EVERYTHING TERMINALS & CABLES, PUT CABLES BACK ON BATTERY POS. FIRST, TIGHTEN IT. THEN DO THE NEGATIVE & TIGHTEN IT.

Posted on Dec 25, 2010

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1 Answer

2003 cadilliac cts service steering message how to fix or clear it


SERVICE STEERING SYS
Refer to Variable Effort Steering System Description and Operation in Variable Effort Steering

Your best bet , take it to the dealer .
Variable Effort Steering System Description and Operation
The Variable Effort Steering (VES) System varies the amount of effort to steer the vehicle as wheel speed changes or lateral acceleration occurs. The Electronic Brake Control Module (EBCM) controls an actuator located in the steering rack and pinion. The actuator consists of an electromagnetic coil and a pintle valve which moves in and out of the rack and pinion's input fluid orifice, regulating power steering fluid flow. The EBCM commands current from 0-1 amp to the VES actuator which varies the amount of effort to steer the vehicle. At low speeds, 1 amp of current is commanded to the VES actuator and the pintle valve is fully retracted which provides maximum fluid flow and maximum steering assist for easy turning and parking maneuvers. At high speeds, no current is commanded and the pintle valve moves closer to the orifice, decreasing fluid flow, providing firmer steering (road feel) and directional stability. The VES system uses the steering wheel position sensor input to calculate lateral acceleration during abrupt driving maneuvers. The system also uses the Antilock Brake System (ABS) wheel speed sensor inputs to determine vehicle speed. The EBCM is constantly monitoring these inputs to achieve the desired current to the VES actuator. The EBCM has the ability to detect malfunctions in the VES actuator or the circuits to the actuator. Any malfunctions detected will cause the VES outputs to be disabled and the EBCM will command the Driver Information Center (DIC) to display the SERVICE STEERING SYSTEM warning message via a class 2 serial data circuit.
Step
Action
Yes
No
Schematic Reference: Steering Assist Schematics
1
Install a scan tool.
Does the scan tool turn ON?
Go to Step 2
Go to Scan Tool Does Not Power Up in Data Link Communications
2
Turn ON the ignition, with the engine OFF.
Attempt to establish communication with the EBCM.
Does the scan tool communicate with the EBCM?
Go to Step 3
Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications
3
Select the ABS Diagnostic Trouble Codes function on the scan tool.
Does the scan tool display any DRP/ABS/TCS or VSES DTCs?
Go to Diagnostic System Check - ABS in Antilock Brake System
Go to Step 4
4
Does the scan tool display any DTCs which begin with a "U"?
Go to Diagnostic Trouble Code (DTC) List in Data Link Communications
Go to Step 5
5
Does the scan tool display "DTC C0450?"
Go to Diagnostic Trouble Code (DTC) List
System OK

Oct 06, 2017 | Cars & Trucks

1 Answer

I want ask code u0121 of dodge 2006


its an abs code the abs system / circuit is not communicating with computer check fuses and wiring to abs system and sensors

Aug 01, 2015 | Dodge Cars & Trucks

1 Answer

05 chrysler 300 code u1120 and u0121


Both of these have to do with the ABS system. U codes are lost communications codes from computers. Sometimes they are the wires. When you have different computers not communicating. Since yours are both from the ABS, I suspect the ABS module has died. Still could be the wire though (not likely). Check the wire for resistance. if good( less than 5 ohms) then the module has died. When you have ABS system malfunctions, the brakes revert back to the old system. Meaning if you hit the brakes to hard, they could lock the tires and have a skidding effect. BUT the brakes still work, they will stop the vehicle. Basically it is your call to have them fixed.

Nov 09, 2014 | 2005 Chrysler 300

1 Answer

Light abs traction control stays 1998 buick park avenue


PRE-DIAGNOSTIC INSPECTIONBefore diagnosing ABS/TCS, perform a comprehensive visual inspection of system as follows.Check ABS/TCS wiring harness connectors for looseness. Check harness routing; pay particular attention to wheel speed sensor wiring harness routing. Check fuses No. 1D, 5B and 6B in instrument panel fuse block. Check fuses No. 1 and 2 in underhood fuse block. Check brake fluid level in master cylinder reservoir. Check brake fluid level in Pressure Modulator Valve (PMV) assembly reservoir. Ensure parking brake is fully released. Ensure parking brake switch is functioning properly. Always perform ABS/TCS system functional check before using DIAGNOSTIC CODE CHARTSThe EBCM/EBTCM has self-diagnostic capability, which can detect system failures. Fault codes stored by EBCM/EBTCM can be displayed using Tech 1 scan tester. There are no provisions for flash code diagnostics.Begin ABS/TCS diagnosis with PRE-DIAGNOSTIC INSPECTION procedure. If failures are found during pre-diagnostic inspection, perform necessary repairs, and proceed with ABS/TCS FUNCTIONAL CHECK. See Fig. 5 .If no failures are found during pre-diagnostic inspection, go to ABS/TCS FUNCTIONAL CHECK. See Fig. 5 . The ABS/TCS FUNCTIONAL CHECK will either indicate ABS/TCS is functioning properly or direct technician to various diagnostic procedures such as diagnostic charts, symptom diagnosis or BRAKE warning light diagnosis.CHART D - TRACTION OFF WARNING LIGHT ON CONTINUOUSLY & NO DTC SET (BUICK WITH UH8 OR U2A INSTRUMENT CLUSTER)Circuit DescriptionWhen ignition switch is first turned to RUN position, EBTCM goes through a self-test, which lasts 2-4 seconds. During self-test, EBTCM commands TRACTION OFF indicator warning light on. Powertrain Control Module (PCM) can also command EBTCM to set a Code 75 which will illuminate TRACTION OFF indicator.Traction control switch is located either on instrument panel center trim plate or driver's front door trim panel. Switch allows driver to select traction control mode (on/off). When traction control system is turned off, TRACTION OFF warning light comes on.EBTCM monitors transaxle temperature through

Jul 12, 2014 | 1998 Buick Park Avenue

1 Answer

DTC U0121 - Lost Communication With Anti-Lock Brake System (ABS) Control Module


If you clear the code does it come right back AND is the ABS light illuminated on dash?

Apr 17, 2014 | 2011 Ford Ranger

1 Answer

Power steering prob.lights come on



Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)


Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module

Oct 18, 2012 | 2006 Hyundai Tucson

1 Answer

Loss of power steering and eps light coming on ,on vauxhall meriva 2006.


Whenever this warning light or any other stays on in the dash it is indicating that the systems control module (or the system sensor in the case of lights like low oil pressure, door open indicators etc.) has detected a fault, it then disables the system (this applies to ABS,TCS, TCM, SRS and BCM faults and others) as long as the light is on. You must now have the dealer hook up a special electronic diagnostic tool and "scan" the system for the fault code that is stored for the problem(s)

Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module

Oct 16, 2012 | Vauxhall Cars & Trucks

2 Answers

My abs warrning light is showing on my bmw 316 and does not go out..


On vehicles equipped with antilock brakes (ABS), a second warning light is provided to warn if a problem occurs within the ABS system. The ABS lamp comes on when the ignition is turned on for a bulb check, then goes out after the engine starts. If the ABS warning light remains on or comes on while driving, it indicates a fault has occurred in the ABS system.

What happens next depends on the nature of the fault. On most applications, the ABS system disables itself if the ABS warning light comes on and remains on. This should have no effect on normal braking. Even so, ABS will NOT be available in an emergency situation or when braking on a wet or slick surface.

CAUTION: If the brake warning light also comes on and remains on while the ABS warning light it on, it signals a serious problem. Your vehicle may not be safe to drive. The brakes and ABS system should be inspected immediately to determine the nature of the problem!

If the ABS light comes on momentarily then goes out, the nature of the problem is usually minor and the ABS system usually remains fully operational. Some vehicle manufacturers call this kind of fault a "nonlatching" fault (meaning it isn't serious enough to disable the ABS system).

Regardless of the type of fault that occurred to trigger the ABS warning lamp, a special "code" is recorded in the ABS module's memory to aid in diagnosing the problem. On some vehicles this code can be retrieved by putting the ABS system into a special diagnostic mode. The code is then flashed out through the ABS warning lamp. The code number refers to a diagnostic chart in a service manual that must be followed to pinpoint the faulty component. On other applications, a special "scan tool" must be plugged into the vehicle's diagnostic connector to read out the fault code.

Jun 07, 2011 | 1995 BMW 3 Series

2 Answers

Anti lock brake light


abs relay some times go bad

Dec 05, 2008 | 1999 Oldsmobile Alero

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