20 Most Recent 2008 Saturn Aura - Page 9 Questions & Answers

Anti-theft light lit on the instrument cluster ? This is a complex computer controlled circuit ,starting . The ignition switch is a input to the BCM - body control module and when it see's start request signal , it will energize the run crank relay powering up the vehicle . And also send's a message via the GMLAN serial data bus network to the ECM - engine control module , which will energize the starter relay turnning over the motor . GMLAN is general motors own version of C.A.N. - controller area network How to Diagnose Controller Area Network CAN The first place to start diagnosing this problem , check battery , cable connections , check for DTC's diagnostic trouble codes ! When the ignition switch is placed in the Start position, a discrete signal is supplied to the body control module (BCM) notifying it that the ignition is in the Start position. The BCM then sends a message to the engine control module (ECM) notifying it that CRANK has been requested. The ECM verifies that the transmission is in Park or Neutral. If it is, the ECM then supplies 12 volts to the control circuit of the START relay. When this occurs, battery positive voltage is supplied through the switch side of the START relay to the S terminal of the starter solenoid.

Cek motor starter or change battery with the new one.

Here's a link on replacing your fan. http://www.autozone.com/repairinfo/repairguide/repairGuideContent.jsp?pageId=0996b43f80cb0fe0

Sorry dealer only ! Important: Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. The order in which the transmitters are programmed is important. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. Use care to program the transmitters correctly. The scan tool must stay connected until all of the transmitters are programmed. Invalidate All This procedure will erase all keyless entry transmitters from memory.

1. Install a scan tool.
2. Turn ON the ignition with the engine OFF.
3. With the scan tool, select Body.
4. Select Remote Control Door Lock Receiver (RCDLR).
5. Select Module Setup.
6. Select Program Key Fobs.
7. Select Invalidate All.
8. Follow the scan tool on screen instructions.

"Most" headlamp "bulbs" are usually acessed from under the hood. Look behind the grille look for the wiring follow going into the grille, not certain IF it's visible haven't worked on anything since 1998 after 24 years of turning wrenches!

The noise you hear. Is it all the time? CHECK ENGINE OIL LEVEL. Is it only when turning wheels left or right? CV JOINTS MAYBE BAD. Either way check quickly to avoid any major problems. GOOD LUCK FRIEND.

probably catalytic converter.

wireing fault try a voltage meter on the live wires if there is nothing then go back to the fuse box try the votage meter there if there is power going to that point then replace the live wire or you could try running the radio off the ignition live wire to see if that works and try the other fuse box in the engine bay

Clean the injectors and check the fuel pressure regulator

You blew a head gasket you will have to pull the head out get it resurfaced to make sure it's not cracked

check --plug--wiring--HT lead ---injector . Run fault codes to determine possible fault

Does the fuel pump turn on with key on? It should turn on for about 2 seconds to pressurize the fuel system. Sudden no starts are usually gas or spark related. Try to determine which. Check if gas is getting up to the engine. Check for spark on a spark plug wire. Must have a strong blue spark to verify ignition is working.