Lexus

Lexus Troubleshooting Questions? Ask a Lexus Expert

Ask an Expert,
Get an Answer ASAP!

Lexus

I have a 03 lexus is300. The jumper got hooked up backwards

Customer Question
and it blew tons of...
I have a 03 lexus is300. The jumper got hooked up backwards and it blew tons of fuses. I replaced all of the bad fuses and the main 120a at fuse. I have checked for power with a meter at all of the fuses in all 3 fuse boxes. All fuses are working now. The vehicle accessories are functioning correctly and the engine will crank with the starter but not fire. I need to know what my next step is. Is it likely the ecm got fried? And if I got a new one will it need to be programmed by the dealer?
Submitted: 2 years ago.Category: Lexus
Show More
Show Less
Ask Your Own Lexus Question
Answered in 1 hour by:
9/3/2015
Lexus Mechanic: Greg, Import tech replied 2 years ago
Greg
Greg, Import tech
Category: Lexus
Satisfied Customers: 7,146
Experience: 17 year shop owner
Verified

This is very possible that the ECM got hit bad if you had to replace a lot of fuses and the 120 ,

See if you can hook up a diagnostic scan tool to the car and check for malfunction codes .

Is the check engine light coming on when you switch on the ignition and go out when cranking .

Check the connections on the engine wiring harness ,

If you can not communicate with the ECM and all wiring harness are good and all fuses are good then if a new ECM is needed you will have to reprogram the new one to the system.

Then if needed please get back to me with the reply button, and not the poor or bad service, this way i can get back to you or suggest another expert if needed.

Your deposit does not pay me until the answer is rated in a positive way,
Not rating or a bad rating does not constitute a refund.

If you are not happy or you have sorted out your problem before the answer then please let me know with the reply button .

Kind regards Greg

Ask Your Own Lexus Question
Customer reply replied 2 years ago
the light is on and I am getting a p0351.
Customer reply replied 2 years ago
Any ideas where to check the harness? I seem to have power everywhere.
Ask Greg Your Own Question
Greg
Greg
Greg, Import tech
Category: Lexus
Satisfied Customers: 7,146
7,146 Satisfied Customers
Experience: 17 year shop owner

Greg is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

lexpert

lexpert

Lexus Master tech

2,100 satisfied customers

Master Certified with lexus, 8 years experience with Lexus

Skyvisions

Skyvisions

ASE Certified Technician

1,759 satisfied customers

Lexus Expert

Ron Z.

Ron Z.

- Lexus Tech -

423 satisfied customers

18+yrs experience. State Inspector and Lexus Diagnostics

Chris (aka - Moose)

Chris (aka - Moose)

Technician

297 satisfied customers

16 years of experience

AMD

AMD

Master Technician

270 satisfied customers

L1 Advanced Level Diagnostics Specialist

George H.

George H.

ASE Certified Technician

217 satisfied customers

15+ years ASE Master w/L1 Drivability certification

Tim Mohr

Tim Mohr

ASE MASTER

125 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

< Previous | Next >

Related Lexus Questions
Does the lexus gs430 has an inherit light steering wheel
Does the lexus gs430 has an inherit light steering wheel problem, if so can it be modified or fixed… read more
Matt J
Matt J
Owner of Jones Automotive
Vocational, Technical or Trade Scho
1,000 satisfied customers
My 1998 ls 400 has a vibration problem when In park at
my 1998 ls 400 has a vibration problem when In park at different rpms whats with that? … read more
Toyota Service
Toyota Service
Toyota Dealership Service & CR Manager
1,344 satisfied customers
HOW MANY CATALYTIC CONVERTERS ARE THERE IN LEXUS RX350 (YEAR
HOW MANY CATALYTIC CONVERTERS ARE THERE IN LEXUS RX350 (YEAR 2007) .THE COMPUTER READINGS INDICATED 420 & 430 ( BANK 1 AND BANK 2)THE MECHANIC SAID, THE CC ARE BAD AND NEED TO BE REPLACED. IS THIS TRU… read more
George H.
George H.
ASE Certified Technician
Associate Degree
217 satisfied customers
I recently replaced my brake rotors and pads on my car –
Hi, I recently replaced my brake rotors and pads on my car – brand new oem 14” Lexus rotors and pads. But shortly after a brake vibration came back. It is mainly at lower speeds less than 45mph when s… read more
Jared D
Jared D
Shop Supervisor
Bachelor\u0027s
3 satisfied customers
Lexus 2002 300RX Code:: Active Engine Code P0330 / Knock
Lexus 2002 300RX Code:: Active Engine Code P0330 / Knock Sensor 1 Circuit Bank 2...Thoughts… read more
Michael Solis
Michael Solis
243 satisfied customers
Ls430 code 2056 pcs axel gap... Pre collision system fault.
ls430 code 2056 pcs axel gap... Pre collision system fault. extracted above code, hard code, won't reset, something about axel gap and sensor... where are these sensors?… read more
LexusPro
LexusPro
Master Lexus Technician
1,031 satisfied customers
I have a 1998 Lexus. Ls400 with 136000 miles. Can a mechanic
ls400 with 136000 miles. Can a mechanic tell if the timing belt has been changed? … read more
Ron Z.
Ron Z.
- Lexus Tech -
Vocational, Technical or Trade Scho
423 satisfied customers
I own a 2016 Lexus RX350. I have noticed in the last few
Hi. I own a 2016 Lexus RX350. I have noticed in the last few days that the steering is feeling a bit stiff. … read more
Mechanic01
Mechanic01
1,138 satisfied customers
I have 2012 Lexus ES and two key fobs, neither of which
I have 2012 Lexus ES and two key fobs, neither of which work. One is fairly new (purchased about 5 months ago and never actually used. The other one I changed the battery. Neither on will lock/unlock … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
900 satisfied customers
C1201, P1120, c1223, c0200. 2000 gs 300. Just got codes.
I just had all of the codes pulled at Advanced Auto Parts … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
900 satisfied customers
My brake light was coming and I tapped up the fluid but I
Hi, my brake light was coming and I tapped up the fluid but I noticed the vsc/vsc off light wont go off; why … read more
Mechanic01
Mechanic01
1,138 satisfied customers
IN NIGERIA ...THE CHECK ENGINE / VSC LIGHT IS ON MY
I AM BASED IN NIGERIA ...THE CHECK ENGINE / VSC LIGHT IS ON MY LEXUS(###) ###-####MODEL. COMPUTER READING INDICATED "THE CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD". MY QUESTIONS ARE; (1) HOW MUCH IS … read more
Chris (aka - Moose)
Chris (aka - Moose)
Technician
Vocational, Technical or Trade School
297 satisfied customers
07 IS 350 has had 4 batteries in last 3 years charging shows
07 IS 350 has had 4 batteries in last 3 years charging shows 13.4 volts but shut engine off battery drops to 12.5 volts untill try to start and drops to 9.1 battery is only 9 months old again. … read more
Todd M
Todd M
Owner
ASE Certification
1,283 satisfied customers
Tire pressure light stays on after all five have been
tire pressure light stays on after all five have been equaled … read more
Mechanic01
Mechanic01
1,138 satisfied customers
I purchased a 2006 Lexus Rx 350 SUV about 2 years ago. No
I purchased a 2006 Lexus Rx 350 SUV about 2 years ago. … read more
Todd M
Todd M
Owner
ASE Certification
1,283 satisfied customers
I was at the car wash and the car stopped working? It's
I was at the car wash and the car stopped working ? It's stating hybrid system failure VSC system failure it's a 2008 400 LX i see there have been issues with water getting into the hybrid system ? … read more
Michael Solis
Michael Solis
243 satisfied customers
Put a new battery in and thats working car starts but now no
Put a new battery in and thats working car starts but now no accesories work in the inside windows seats trunk … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
900 satisfied customers
Helo. The check engine and vsc light is on. The computer
the computer reading shows codes...PO420 and 430 the light stays on … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x