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Fix code p1603

My car sorento 2.5l yr 2006 kept on shutting down by itself. Diagnosis shows that injector no 1 and 4 problems together with p1603 -CAN Communication Bus

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 25 Answers

SOURCE: P1603 Battery Backup Error

There is a power supply to the ecu that is missing either permanantly or interrmitently, it may be as simple as a fuse, or it may have a bad connection in a loom plug or a broken wire...

Posted on Oct 12, 2008

Brian032472
  • 150 Answers

SOURCE: 2006 kia sorento code problem

Bank one implies the drivers side of the motor. With a front wheel drive vehicle its the front as you look at it. The oyygen sensor is in the exaust manifold pipe. it screws into a bung on the pipe and has a wire lead going to a connector (electrical)

Posted on Nov 05, 2008

  • 107 Answers

SOURCE: 05' v6 silverado won't start

these vortech motors have a spider fuel delivery , prone to leak and fuel regulator also problematic , smell fuel under the hood after cranking ? get both parts , experience with repair is suggested

Posted on Feb 19, 2009

  • 1509 Answers

SOURCE: 2006 pontiac torrent shut down car will just crank, not start

The factory alarm is not to be tampered with as you can reset it but not disconnect it as it's part of the main fuel injection system. Do you have the right key? Just because it turns and cranks doesn't mean it has the right code. the security light off with the key on ut not cranking? If it stays on you do have a security problem. The system can be reset ( if the battery is good, and hot. Trun the key to crank and letgo the security light will but on or blinking . Leave the key on till the light goes out (around 15 minutes. Once it's out turn the key off then back on and the security light will be back on again. again wait till it goes out turn off then on again till the light goes out. Now turn the key off wait a few seconds trun it on and crank the engine. If it starts then it's reset. Sometimes I've had to do this more than three times to get it to reconize the key as the right one. rember a store cut key won't ever work as it doesnt have the (brain in it the the factory key does. Lets say your wrong, about the security system. The fuel pumps go bad like crazy and its thier season to fail. They fail quicker if you $5 the car alot. (runing on empty) Was the check engine light on as it ran the last time it was running? If so the codes need to be retieved and repaired. A scanner will find the security enabled on too.

Posted on Aug 28, 2009

c17hydro
  • 2984 Answers

SOURCE: 2006 kia sorento makes a squealing sound under

It is either the tesnioner or the belt....easy way to find out is to spray the pulley that has no grooves....that's the tensioner. Spray it with WD-40 or equivalent, in the middle of the pulley. That is the bearing housing. Spray only that first. Start the motor...if it goes away, then you have found your problem. Try not to spray the belt.

If it still squeals, spray the belt with the engine running. If it squeals, replace the belt.

Has anything been done to the motor recenlty? If so, one of the pulleys may be a little off-centered.

Let me know what you find.

Posted on Oct 11, 2009

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1 Answer

What are the probable causes of DTCs P1603, P1604, and P1605?


OBD-II code P1603 indicates an issue with TCU communication.
There are communications that exist between the engine control module, or ECM, and the transaxle control module, or TCM. This communication is done through a control area network, or CAN. With the communication of the CAN, an independent pin and wiring is needed to receive a signal that includes sensor information from the ECM. The more information there is to communicate, the more wiring that is needed. When it comes to CAN communication, all of the information communicated is done alone control modules like the ECM and TCM using CAN lines. When there is a problem with these lines, the ECM will detect the problem and store a P1603 trouble code; the storing of the trouble code is what causes the SES or check engine light to illuminate on the dash.
Possible causes of trouble code P1603 include:
  • Faulty transaxle control module (TCM)
  • Faulty engine control module (ECM)
  • Harness running from the TCM to the ECM has a short
  • There is a poor electrical connection between the TCM and ECM
Diagnosing the exact cause of the problem should always begin with a visual inspection that could reveal bad wiring, loose connections, or damaged parts. From there, it is a matter of running down the list to determine what needs to be replaced. In general, a bad ECM will cause a loss of power, poor fuel economy, and stalling engine. While a bad TCM will have more prevalent transaxle issues like erratic shifting
P1605 and P1605
These codes are indicating a starting problem and rough idling. Code p1604 is a very vague code and diagnosing it without having a symptom is very complicated. And code p1605 is rough idling which means that the computer have noticed a rough idle situation usually this code is accompanied by other codes or if it's alone then I would suspect a fuel pressure issue. These two codes involve diagnosis and we'll need to dig into this problem deeper to find out what's causing them, Unless you are an experienced technician who need assistance then I will suggest that you take your vehicle to your local toyota dealership and they should be able to find the problem.
P1P

Feb 12, 2016 | 2011 Toyota Sienna

1 Answer

What is the meaning of code P1603 kindly give us


P1603 - EEPROM Malfunction
Possible symptoms: Engine Light ON (or Service Engine Soon Warning Light).
P1603 Information for specific makes P1603 BUICK
P1603 CADILLAC
P1603 CHEVROLET
P1603 GMC
P1603 HYUNDAI
P1603 KIA
P1603 EEPROM Malfunction

May 31, 2015 | Cars & Trucks

2 Answers

Hi, Had loss of power in Kia Sorento 2006. Changed injectors but it wouldn't start. Checked injectors and put them back but it still won't start. Any ideas? Thanka in advance.


run the fault codes . check for cam/crank position sensor problem. check that the cam shaft is turning (broken timing belt/chain). check immobiliser is operating correctly

Feb 05, 2015 | 2006 Kia Sorento

1 Answer

Kia shuts off while driving


If recharging the battery makes it start/go again then its a fault in the charging/battery circuit.
Solution 1. Check alternator. It should read over 14 volts across the battery terminals with engine at tick over. If its below that its the alternator thats faulty
Solution 2. Try a different battery known to be good. any size will do for a couple of days. Batteries sometimes only last 2-3 years. yoyrs could have been on since 2006!!!!!!

Jan 28, 2014 | 2006 Kia Sorento

1 Answer

My sorento kept on shutting down by itself while driving. I sent to an authorised Korean Car service ctr but after scanning the result shows nothing. What should i do next????


It may be one of those things you have to catch in the act. I think I would want the whole ignition system analyzed by a shop with some rather elaborate equipment. I understand it requires an oscilloscope to thoroughly diagnose the ignitions on modern cars. A weak spot might show up with an analyzer. It could be many things, something as simple as a connector losing contact.

Apr 22, 2013 | 2006 Kia Sorento

1 Answer

Started my 2005 Kia Sorento this morning. It sounded and felt rough than died. Started it again gave it some gas and kept running rough. but RPM's fluxing up and down.


If no "check engine" or "wrench symbol" shows on the dash, the problem may be with bad gas.

If you do have a light displayed on the dash, Autozone, Advance, and Oreilys will scan the car for free. They can give you the defect number and sell parts to you if you can fix it yourself. If you need someone to fix it, at least when you call, you can price the repair by name.

Let the car idle and warm up before accelerating. See if it smooths out or makes noises. The noises would indicate problems that should not be driven.

I hope my solution is helpful.

Sep 11, 2012 | 2005 Kia Sorento

1 Answer

We have changed the fuel injector but the car still won't start,it also shows a symbol of a car with a key inside of it,in the dashboard.(Rexton 2.7xdi)


Why did you change an injector,was it tested
somehow and found to be bad ?

What Diagnostic Codes do you have?

Is starting the only issue, or something
led up to that ?

Mar 21, 2011 | 2006 Kia Sorento

1 Answer

2006 Sorento, 53,500 miles. Engine shut off right after start up. Has done it 3-4 times. Starts right back up and all is fine. Now, check engine light just came on and stays on. Time for a new...


I have a 2006 Sorrento as well where the engine shuts down under acceleration or going up hills. had the fuel filter changed resolved the problem. Now 10 months after original problem has started happening again. Cause id the fuel tank liner delaminating and blocking the hoses and filter with the debris. Might be worth getting it checked

Mar 02, 2011 | 2006 Kia Sorento

1 Answer

I got a code P0773 SCSUE on an 05 Kia Sorento I'm thinking of buying. Supposedly it's Red Solenoid electrical. Could anyone expound on whether or not this will be a potential problem.


This error is for shift solenoid, most likely wiring problem or solenoid itself. it should not be a big problem after checking the wire, plug and solenoid itself, replace it if needed to.

Sep 30, 2010 | 2006 Kia Sorento

1 Answer

2006 Kia Sorento code P0343 and P0463


did you ever get this fixed, i am having the same problem with mine, what was wrong with it

May 15, 2010 | 2006 Kia Sorento

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