20 Most Recent 2006 Saturn L300 Questions & Answers

Thank ypu.

It's a "BCM" issue. Body control module. think of a "BCM" as a computer for the interior electrical aspects of the car. If you have the proper scan tool (Tech II) and the skill scan the "BCM" for error codes. Post the codes and I'll tell you how to fix it. If you don't have a scan tool or the skill take the car to a dealer or qualified mechanic.

This is an indication that the TCM is not function properly As it is an automatic the gears in constant mesh with gear changes being effected by clutch packs and bands so the ratios are always correct just the selection is not working properly./ Hence the TCM fault.

I had a Buick Rendezvous that did this. Turned out if was the neck of the gas tank breaking away from car. It was a factory recall, but not before I paid to have it done. Look for problems on your car online and see if any mention this same problem. There may be a problem of which you are not aware.

the sensor is behind the crankshaft pulley.--------Can Clip

Either:the main fuse that controls this unit has blown orthe relay that controls this unit is blown ora circuit breaker for this unit has become stuck or most likely this complete unit needs replacing as it has sufferred irreparable damage.

Take your car to Autozone and they will run a code checker to tell you what the problem is and what it will take to fix it.

Where is the crank sensor located on a 2005 saturn 300 L

Is the air filter clean?

P0174 basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). Bank 2 is generally the side of the engine that doesn't have cylinder #1. P0171 means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). Bank 1 is the side of the engine that has cylinder #1.

A code P0171 and P0174 may mean that one or more of the following has happened:
* The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
* There could be a vacuum leak downstream of the MAF sensor.

The possible solutions include:
- In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
- Inspect all vacuum and PCV hoses, replace if necessary
- Check for a dirty fuel filter and proper fuel pressure


About P0421 code, this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system; also, P0431 means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

A code P0421 may mean that one or more of the following has happened:
* The catalytic converter is no longer functioning properly
* An oxygen sensor is not reading (functioning) properly
* A sparkplug is fouled up

To sove it, measure the voltage at the oxygen sensor on Bank 1 (the rear sensor, or the sensor after the converter). In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.

One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.

A code P0431 may mean that one or more of the following has happened:
* The catalytic converter is no longer functioning properly
* An oxygen sensor is not reading (functioning) properly
* There is an exhaust leak

To solve it inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you're at it. One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.

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Almost all newer cars have a safety that won't allow you to shift without a foot on the brake. These are either cable or electric solenoid activated. They fail, so check your owners manual, as it will have the procedure to get it to shift, untill you can get it fixed correctly.