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Ihave toyota prius ABS light still on Already change it ABS unit but have still code C1203 ECM curicut malfunction please help me now

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Same
As answer to other question

https://techinfo.toyota.com/t3Portal/document/rm/RM07X0U/xhtml/RM000001S1E002X.html?sisuffix=ff&locale=en&siid=1483518363064

Posted on Jan 04, 2017

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6ya6ya
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Posted on Jan 02, 2017

bunnydawg
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SOURCE: how to change a headlight light bulb on toyota prius 2006?

they are usually changed from inside the engine compartment. you should be able to gain access to the bulb behind each headlight bazel. the socket often has to be turned to remove it. be careful not to touch the new bulb with your fingers as that will shorten it's lifespan. you may have to remove the battery if the burnt out bulb is on that side.

Robert

Please take a moment to rate this solution... thanks

Posted on Apr 15, 2009

protuha
  • 208 Answers

SOURCE: 2003 toyota abs light Codes

C1223 - Left Rear Wheel Speed Sensor Input Signal is 0 C1203 - The procedure for this fault is to check for an open or short in the harness and connector between the Skid control ECU and ECM.If no faults are found with the wiring, then - the MIL stays off when ignition on but engine not running (Requires ECM replacing)
- the MIL comes on when ignition on but engine not running (requires ABS & traction actuator assembly)
These parts wont be cheap so i hope its a wiring fault smile.gif
If you take it to a Toyota dealership they should be able to do this for you pretty easily.

Posted on Mar 02, 2011

  • 1010 Answers

SOURCE: toyota sienna 2006 code 2799 the car not start

You have a Immobilizer problem, take the car to a service

Posted on Mar 26, 2013

smartsocasa
  • 1 Answer

SOURCE: I need wiring diagrams for Toyota Prius

You can find all wiring diagrams that you need in the repair manual. Just go and download it! Will help you a lot!

Posted on Jan 06, 2014

  • 1 Answer

SOURCE: fault lights

That happened to me on my 2000 toyota corolla and it was in the linkage adjustment on my emergency brake handle. I tightened up the linkage and then when I would release the handle, the light would go out. Hope that solves your problem.

Posted on Jan 25, 2014

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C1203 code on 03 sequoia


This communication code (C1203) will be set any time the check engine light comes on. The data link between the two computers becomes interrupted when there is a malfunction in the engine control computer or if the brake warning light is illuminated. The code itself is nothing to be worried about unless it won't clear and this is causing the lights for the VSC system to remain on. If this is the case then there is a problem in the communication line between the VSC computer and the engine control computer. This is extremely unlikely though. Remove the negative battery cable to erase all the memories in the on board systems then see if everything functions normally and this 1203 code disappears

Jun 28, 2016 | 2003 Toyota Sequoia

2 Answers

My 2008 prius abs and brake light came on and the the brakes became very hard and constant beep noise, so how to fix it as its really irritating continuous noise beep.


The ABS system is in need of immediate service. The hard pedal is the ABS/Hydraulics malfunctioning and beeping to let you know. Could be a sensor or module maybe a wiring/connection issue but have it serviced ASAP . A bad vacuum supply to the booster or booster diaphragm can also cause a hard pedal and any could light the warning light.

May 24, 2016 | 2008 Toyota Prius Hybrid

1 Answer

ABS ON,BRAKE RED L ON ALARM ON HARD PEDAL HOW CAN I FIND THE PROBLEM


VSC ABS and ! lights plus red (!) - Toyota Prius Forum ...

www.priusonline.com/...toyota-prius.../19804-vsc-abs-lights-plus-red.ht...

Jun 3, 2008 - 8 posts - ‎3 authors
If the accumulator fails, you will get a red brake warning light and the pump will now run continuosly until it burns out. ... hydraulic pressure to the brake system and "no"red warning lights. .... Fog Lights, PassGas, Toyota Prius General Discussion, 4, 10-13-2005 09:12 AM ... 11-13-2015 10:01 PM by Tim Lee.

Alarm with Brake Light, ABS, VSC and amber warning lights ' PriusChat

priuschat.com > ... > Gen 2 Prius Care, Maintenance and Troubleshooting
Jul 26, 2005 - Later that same day - I started getting an alarm - as soon... ... Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Care, ... Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by NorthStar, Jul 26, 2005. ... I am getting the red BRAKE LIGHT, the amber waming symbol, ABS, and ... VSC, ABS, (!) and emergency brake light on
Feb 5, 2010
Brake, Brake warning, ABS, VSC appear
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Nov 24, 2015 | 2005 Toyota Prius

1 Answer

My toyota noah refuses to revv and the fault code is p1633


code p 1633 refers to throttle actuator control (TAC) system---malfunction===causes --ECM
although you have replaced the ECM was it a known good unit on one a friend had laying around
use a scan tool to reset the ECM to put the light out

Nov 24, 2015 | Toyota Cars & Trucks

2 Answers

HAVE A 2009 COROLLA HELP WITH CODE C1201 WHAT DO I NEED START WITH


Error Code: C1201
Description: Engine control system malfunction.
Possible causes:
- Harness wiring.
- ECM

Oct 02, 2014 | 2009 Toyota Corolla

1 Answer

I have codes C1241 and C1223 on a 2001 Toyota Sequoia. What is the possible problem?


found this on another post. Hope it helps.

c1223 absicon1.png control system abnormal

c1203 data cannot be transmited/recived to/from ECM

trouble area:
brakeicon1.png fluid
brake fluid level switch
TRC+ or TRC- CIRCUITS
SS1 or SS2 circuits
ECM
Translate ECU

Nov 01, 2013 | Toyota Sequoia Cars & Trucks

1 Answer

2001 Toyota Prius with 155,000 miles. The engine battery on this had been replaced in late 2010 under warranty. The car has been suddenly losing power almost everyday for a week, with the triangle warning...


code p0441 refers to evaporative emission EVAP system-incorrect flow detected===causes hose connections--intake leak---EVAP canister purge valve
Po144 refers to the same fault and causes
Po446 refers to EVAP system--vent control-circuit malfunction===causes --wiring---EVAP canister purge valve---ECM In all cases codes the canister purge valve gets a mention and then the ECM. I would take it back and ask that the canister purge valve be changed or even ask for a new canister as there are occasions when filling the tank to the filler hole will induce fuel into the canister causing it to malfunction.

Aug 03, 2013 | 2001 Toyota Prius

3 Answers

2003 toyota abs light Codes C1203, C1223


C1223 - Left Rear Wheel Speed Sensor Input Signal is 0 C1203 - The procedure for this fault is to check for an open or short in the harness and connector between the Skid control ECU and ECM.If no faults are found with the wiring, then - the MIL stays off when ignition on but engine not running (Requires ECM replacing)
- the MIL comes on when ignition on but engine not running (requires ABS & traction actuator assembly)
These parts wont be cheap so i hope its a wiring fault smile.gif
If you take it to a Toyota dealership they should be able to do this for you pretty easily.

Mar 02, 2011 | 2003 Toyota Sequoia

1 Answer

2005 toyota prius abs brake not working warning light and abs lights all stay on toyota cant fine problem they say the brakes are fine they want to put in a main chip which well cost $2500 i beg to differ...


Hmm, I'm not sure what a main chip is but, there is a few reasons for this problem.
  1. ABS Sensors - there could be something wrong with a sensor and/or the wiring to them
  2. The wheel bearing speed sensor in a wheel is bad or intermittent which then tells the computer that wheel is traveling at a faster or slower rate of speed then the rest which in then the computer turns the abs light on.
Now when your warning lights go on, the computer sets a DTC code which is the key to helping solve this problem. If you can get the DTC (Data Trouble Code) from the dealership or from someone who can scan your can, I can better assist you in figuring out what's wrong. Hope this helps.

Oct 20, 2009 | 2004 Toyota Prius

1 Answer

I have brake light and abs lights on...2001 prius


It's both mechanical and electrical. See an expert to handle this.

Mar 18, 2009 | 2001 Toyota Prius

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