How JustAnswer Works:

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

Ask Amedee Your Own Question

Amedee, Saturn Technician
Category: Saturn
Satisfied Customers: 23062
Experience:  ASE Master Technician advanced level specialist. Wisconsin certified emissions state inspector
Type Your Saturn Question Here...
Amedee is online now
A new question is answered every 9 seconds

2003 Saturn l300: gas gauge doesnt move. Tachometer doesnt move

Customer Question

2003 Saturn LW300 will not start. Gas gauge doesn't move. Tachometer doesn't move when attempting to start. ECM no communication, BCM no communication.
Submitted: 4 years ago.
Category: Saturn
Expert:  Amedee replied 4 years ago.

Does the check engine light come on with the key on?
Customer: replied 4 years ago.
Yes it does.
Expert:  Amedee replied 4 years ago.
Do you have your reference voltages to the sensors under the hood with the key on?
Customer: replied 4 years ago.
No we do not
Expert:  Amedee replied 4 years ago.
Ok.. lets check to be sure we have power down on pin 16 of the diagnostic connector with the key on.

Here is a picture of the pin numbers.

Customer: replied 4 years ago.
Yes we have power on pin 16.

The vehicle did start in the morning. It did the same thing yesterday, started in the morning, we drove it 15 miles and it ran perfectly. Thought it was fixed then after sitting about 10 minutes, it started up fine and was moved again to another parking place. After another 15 minutes or so we needed to move it to get a vehicle out of the bay and it would not start. Had no communication, etc.

This morning it started as if nothing was wrong. When it was running this morning the check engine light was on. We tried to turn off the check engine light with the key on. When we tried again to turn off the check engine light with the engine running, we managed to turn off most of the codes (P0123, P0222 and P0533). The only codes that would not turn off were P1632 and P0700. After trying again and again, I turned off the ignition and since then we cannot start the vehicle again. P.S. If I disconnect the TPS harness (IAC) the vehicle will start and as soon as we reconnect it, it will continue running but will not accelerate. The accelerater on completely useless.
Expert:  Amedee replied 4 years ago.
It sounds to me like you just have a bad module on board your vehicle. THis is very common! The ECM, TCM and ABS module are the most likley culprits but it can be caused by any of them. Verify that the CAN circuit between Transmission Control Module, Engine Control Module and Body Control Module is working correctly with good connections at all the module.
Customer: replied 4 years ago.
Amedee, we will need to continue this next week after we verify the CAN circuit between the modules. Will get back to you then.
Expert:  Amedee replied 4 years ago.
I have a feeling you will find that either your CAN circuit is being shorted out by a bad module or you just have a bad PCM. EIther way, now you know what to look for.

I DO hope you found my Answer to be helpful regarding your vehicles condition. IF SO-please hit **ACCEPT** as you read this Answer, in order that I may receive credit for my time, thanks. BONUSES & Positive Feedback Most appreciated!

Please Note: I receive ZERO Credit until & unless you choose to ACCEPT my well thought-out Answer.



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... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...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:

  • 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
< Previous | Next >
  • 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!!!! Alex Los 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. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, 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. Esther Woodstock, 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. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX

Meet The Experts:

  • George H.

    George H.

    ASE Certified Technician

    Satisfied Customers:

    ASE Master Tech 15+ Years
< Last | Next >
  • George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    ASE Master Tech 15+ Years
  • Pete's Avatar


    Saturn Mechanic

    Satisfied Customers:

    17 years Saturn Technician experience.
  • Gm Tech (Cam)'s Avatar

    Gm Tech (Cam)

    Saturn Mechanic

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years experience.
  • Ron Z.'s Avatar

    Ron Z.

    - Saturn Tech -

    Satisfied Customers:

    18+yrs experience. State Inspector and Saturn Diagnostics
  • John's Avatar


    ASE Certified Technician

    Satisfied Customers:

    Master ASE technician,Master GM technician,40 years experience
  • Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Saturn Mechanic

    Satisfied Customers:

    GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
  • Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)

    Saturn Technician

    Satisfied Customers:

    16 years of experience