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C1555 faul code and no power steering function

All fault lamp in dashboard are on

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Hi my eps light is comming on and i lose power streering how do i fix it


It cannot be fixed until the problem with the Electronic Power Steering(EPS) is properly diagnosed.
The power assist system is comprised of...
  • EPS computer unit
  • Warning light on the dashboard
  • A connection to the OBD2 Diagnostic port in the car
  • A Vehicle speed sensor
  • A sensor which detects steering rotation on the input shaft of the steering rack
  • An electric motor, which provides the power steering assistance to the steering rack. Unless that motor runs you will have no power assistance to your steering.
  1. You will need to have the system scanned with the appropriate scan tool through the OBD port in the car. This will generate various fault codes which assist in diagnosing where the problem lies in the power steering system. It may be just a failed sensor that needs replacing or it might be a bigger problem.
  2. Once the fault codes have been pulled the mechanics can diagnose the cause and make whatever repairs or parts changes may be required.
  3. This is not a do it yourself exercise. You will need a mechanic who knows these Japanese electronic power steering systems and who understands the fault codes (and there are many of them on this EPS system) to diagnose the problem for you and fix whatever fault(s) has arisen.

Dec 30, 2015 | Daihatsu Cars & Trucks

2 Answers

What is 2002 Ford Focus airbag code 23, what should I check?


23 Memory Clear Circuit Improperly Grounded.

Feb 11, 2015 | 2002 Ford Focus

1 Answer

How i can remove the fault code b1589 vizt 2007


to effectively remove the fault code there has to be a repair of the item that the code refers to. just putting the light out fixes nothing

Dec 24, 2014 | 2009 Toyota Yaris

1 Answer

I have Lexus gs450h 2010 with trouble code c1555 and steering wheel is hard to turn I already replaced steering ecu after calibrating work fine but for only 20 minutes and was unable to clear the same code...


The ECU wasn't bad. The power steering unit is. The ECU compensated for the bad unit, until it wouldn't take it anymore. Replace the steering unit under the dash. Just a note though. I would do a wiring diagnostic first, to make sure all the wires are good.

Dec 07, 2014 | Cars & Trucks

1 Answer

My is electric power steering gs450h with code c1555 hard to turn


Motor relay circuit malfunction, check power steering ECU!

Dec 07, 2014 | Cars & Trucks

1 Answer

How to check engine warning lamp?


You will need an ODB code reader, which will connect to the receptacle under the driver side of the dashboard, usually just below where the steering column is. The ODB reader will display a series of codes, which you can look up online to help determine what fault your vehicle's computer is sensing.

May 19, 2014 | Mitsubishi Montero Sport Cars & Trucks

1 Answer

Start the vehicle won't turn the ignition switch on the dashboard, the KEY lamp lights at the same time


First, ensure the card key in the car space (or in the car, or in the car'soccupants body); second, may the owners in the previous parking flameout, away from the door when the steering wheel started locking function. Side with the left hand first anticlockwise hit the steering wheel,while attempting to toggle the ignition switch, it can make the steering wheellock to start the engine. Use obd2 for automotive diagnostics , you can improve vehicle safety performance and driving more safer.

Dec 06, 2013 | Cars & Trucks

1 Answer

1994 legend speedometer works once in a while


92 or 94?
is fuse 22 loose?
did the CEL lamp in dash glow at this FAILURE event
or S, D or D4 auto tranny lamps flash? BINGO,

did you look for ECU/PCM errors first.? that be first .
is the odometer dead? too, at same time?
on this car the VSS module (veh.speed sensor)
sends the speed data to 6 other modules. the speedometer is 1.
so of the other 5 are dead, its the VSS dead, if not its a bad speedometer.
on of those modules is the PCM, that runs the EFI engine.
so scan it, on this old car, you insert the diagnostic jumper
(service check conn.)
and read the flash codes from the CEL lamp in the dash.
this will show 17 error, VSS bad. if bad (its bad or bad conn)
easy huh?

log in to alldata.com and read the how to read OBD1 codes
it will be something like this. (photos missing)
When a fault is noted, the ECU (otherwise known as the ECM) stores an identifying code and illuminates the CHECK ENGINE light. The code will remain in memory until cleared; the dashboard warning lamp may not illuminate during the next ignition cycle if the fault is no longer present. Not all faults noted by the ECU will trigger the dashboard warning lamp although the fault code will be set in memory. For this reason, troubleshooting should be based on the presence of stored codes, not the illumination of the warning lamp while the car is operating.
All models are equipped with a service connector in side the cabin of the vehicle. If the service connector is jumped, the CHECK ENGINE lamp will display the stored codes in the same fashion.
The 2-pin service connector is located under the extreme right dashboard on Integra, Legend & 2.5TL; on Vigor models, it is found behind the right side of the center console well under the dashboard.
Codes 1-9 are indicated by a series of short flashes; two-digit codes use a number of long flashes for the first digit followed by the appropriate number of short flashes. For example, Code 43 would be indicated by 4 long flashes followed by 3 short flashes. Codes are separated by a longer pause between transaxles. The position of the codes during output can be helpful in diagnostic work. Multiple codes transmitted in isolated order indicate unique occurrences; a display of showing 1-1-1-pause-9-9-9 indicates two problems or problems occurring at different times. An alternating display, such as 1-9-1-9-1, indicates simultaneous occurrences of the faults.
When counting flashes to determine codes, a code not valid for the vehicle may be found. In this case, first recount the flashes to confirm an accurate count. If necessary, turn the ignition switch OFF, then recycle the system and begin the count again. If the Code is not valid for the vehicle, the ECU must be replaced.
and this warning
On vehicles with automatic transaxles, the S, D or D4 lamp may flash with the CHECK ENGINE lamp if certain codes are stored. For Legend this may occur with Codes 6, 7 or 17. On Vigor and Integra it may occur with codes 6, 7 or 13. In addition, the TCS lamp on NSX may flash with codes 3, 5, 6,13,15,16,17, 35 or 36. In all cases, proceed with the diagnosis based on the engine code shown. After repairs, recheck the lamp. If the additional warning lamp is still lit, proceed with diagnosis for that system.

Sep 19, 2013 | 1992 Acura Legend

1 Answer

What code c1555 means ?


Crank position sensor failure is likely. No pulse from this sensor, and the ECU will not switch on the fuel pump, so no gas and no go. Cheap part to replace. THEY DO FAIL WITH AGE. If the car has done a high mileage. Replace it. Age due to constant heat exposure kills them.

Oct 05, 2012 | 1998 Saab 900

2 Answers

Why does the car drag when changing gears? the various lights on the dashboard are blinking and it shows EPS


EPS indicates Electronic power steering warning light.---------The power steering needs to be inspected.The power steering pump, the power steering fluid, the power steering hose ,power steering belt and pulley. Get your car scanned by the dealer or at local car garage.That will be much helpful.As you will receive codes, as per codes you can replace the part or get the part checked.A fault in the wiring loop causes it to short on the steering column.This problem is very much noticed in Hyundai cars.-------

This will solve the problem or point you towards the cause of problem. Thank you for using fixya.

Jul 01, 2011 | Hyundai Elantra Cars & Trucks

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