Question about 1994 Saab 900

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The starter (ignition) switch does not return automatically to the "on" position after starting. Does this mean I have to replace the switch or can it be repaired?

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  • Saab Master
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It is the barrel at the rear of the ignition switch, you do not need to replace the whole of the ignition switch just the part on the back if you remove the stearing cowling and look behind the ignition barrel you will see either a white or black ( might be any colour though) item with wires going into it, all that is needed is that part to be replace, just unplug the wireing part and remove the ignition box from the back of the barrel and replace, hope i explained that correctly for you

Posted on Feb 02, 2010

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1 Answer

Where is the neutral safety switch on a 2002 Pontiac Bonneville, located


Circuit Description
Moving the ignition switch to the START position sends a 12 V signal to the PCM Ignition Crank Sense. The PCM verifies that the transmission is in the PARK or NEUTRAL position. The PCM then grounds the control circuit of the START relay. When the START relay is energized it allows battery positive voltage to the starter solenoid S terminal.
Turn the ignition switch to the START position.
Does the engine crank?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3

3

Is the security indicator flashing?
Go to Diagnostic System Check - Theft Deterrent in Theft Deterrent
Go to Step 4

4

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Starter Relay Command parameter in the PCM data list.
  4. Turn the ignition switch to the START position.
Does the scan tool display Yes

5

  1. Turn ON the ignition, with the engine OFF.
  2. Verify that the transmission is in Park or Neutral.
  3. With a scan tool, observe the IMS parameter in the Transmission data list.
Does the scan tool display Park or Neutral?
Go to Step 12
Go to Transmission Internal Mode Switch Logic in Automatic Transaxle - 4T65- E

6

Turn the ignition switch to the START position.
Do you hear the STARTER relay click?
Go to Step 9
Go to Step 7
Your best bet is to take your vehicle to a qualified repair shop. Before you replace a part an find out that's not what's wrong . If you new how to test the starter circuit , you would start at the starter relay .

Jun 15, 2016 | Pontiac Cars & Trucks

1 Answer

Why doesn't it start?


Is it automatic or manual assuming automatic for the moment
If it is automatic try to start it in ever gear by holding the ignition key all the way on and pulling the selector slowly between the ranges
If the starter catches and engine starts the inhibitor switch needs adjusting if not go to the next step which is for automatic & manuals. bridge the solenoid power wire with the main battery wire.
If this causes it to start with the ignition in the on position then manuals may have a faulty ignition switch automatics may have the inhibitor switch wires disconnected or a faulty ignition switch.
if the solenoid goes click click faulty solenoid or if no starter action happens then the the starter is cactus

Feb 24, 2016 | 1998 Ford Taurus SE

1 Answer

Wires on starter but wont start will start with screwdriver whats wrong


The solenoid on a starter receives voltage when you turn your ignition switch to the start position that tells it to activate the starter. When you use the screwdriver to start the car, you are basically bypassing the solenoid on the starter. Since the car won't start when you turn the key, this means that either the solenoid is bad and the starter needs to be replaced, or the solenoid is not getting the voltage from your ignition switch that tells it to engage the starter. You might be able to eliminate the ignition switch as the problem if you get somebody to hold the key in the start position while you check to see if there is voltage at the starter solenoid. If you have voltage there, the starter solenoid is most likely bad, and the starter needs to be replaced.

Sep 26, 2014 | Cars & Trucks

1 Answer

Engine wont turn over and no lights with key in accesory position


What about with the key in the on position -do the warning lights and gauges turn on? That would mean the ignition switch has power and can turn on.
Any theft alarm activated, immobilizing the car?
Won't turn over- you mean won't start or the starter won't spin the engine over? If it won't start, ignition spark or fuel problem. If the engine won't crank, problem is in the start circuit- from battery to starter, and from battery to ignition switch to starter. Park/neutral safety switch is in circuit between key switch and starter.

Jan 03, 2014 | Cars & Trucks

2 Answers

Ignition relay clicks but starter won't engage


Where is this relay? A wiring diagram doesn't show any relay at all in the starting circuit. Just this: a yellow start wire out of ignition switch goes to the neutral safety switch (if manual, a clutch start switch on the clutch pedal: if automatic a transmission range switch); From the safety switch a purple wire to the starter solenoid on the starter motor. Only other place to check is a "crank" fuse in the instrument panel fuse block- a 10 amp fuse in position 8 of the block.
Is the click you hear possibly from the starter solenoid? If it is, that means key switch part of circuit to the solenoid is good. Either starter motor is bad, or battery connections to starter and to battery ground may be bad, check them first.

Dec 31, 2013 | 1995 Chevrolet K1500

1 Answer

Ignition in column unoperable


It appears that the "Accessory" portion of your Ignition Switch is inoperative. What this means is there are 3 various positions on your Ignition Switch, Off, Run and Start. Your "Off" position (from what I gather) is working as it should. The "Start" position is also working in that it sends a signal to your Starter and your Engine Starts up, however this is where the problem occurs. When you release the key from the Start position, it automatically returns to the "Run" position, which ALL your "Accessories" are supposed to remain "On." This tells me the "Ignition Switch" has malfunctioned. This isn't actually where the key is inserted, most cars have a rod going from the Key area to a switch down on top of the steering column that engages various switches and contacts within the Ignition Switch. Some car manufacturers have the Ignition Switch held in with two 8 mm nuts or 5/16", that allow you to slide the Ignition Switch so that the Run, Start and Off positions are in-line.

I would obtain a Haynes Manual for your particular car and this will show you "How to replace or Test your Ignition Switch." To do this without a "Service Manual" will be almost impossible and the Haynes Manual has a section in the back of the Wiring Diagrams of your vehicle. To further diagnose your problem, take a test light or volt meter and when the car is running, ALL the fuses should be "hot", or register voltage or light up the test light...except for the parking light fuse unless you have the lights on while performing this test. If you have No Voltage to your Radio, Fan Switch or anything else, then it's the Ignition Switch caught in-between the Start and Run position insofar as not allowing the 12 volts to power the Accessories in your car.

I hope this helps in resolving your problem. Please feel free to update me at anytime.

Sincerely,

"00 Buck"

"Still living on the Right Side of Dirt..."

Nov 24, 2013 | 1983 Chevrolet Chevy

1 Answer

My 2001 Jeep Grand Cherokee wont start sometimes, but if I put it in neutral then try to start it..It starts .. What is the problem with my baby.......


Test/Service/Replace

The circuit on newer cars with automatic transmissions has a neutral safety, or neutral start switch installed between the ignition switch and the starter. The ignition switch cannot operate the starter motor unless the transmission is in park or neutral.
Late model vehicles with manual transmissions have a starter/clutch interlock switch that requires the clutch to be depressed to the floor.
Neutral Safety Switch
Normal operations of a neutral safety switch provides a quick check for the adjustment of the gear selector linkage.
  • To do this, move the selector slowly until it clicks into the PARK position.
  • Turn the ignition key to the START position.
  • If the starter operates, the PARK position is correct.
  • After checking the PARK position, move the lever slowly toward the NEUTRAL position until the lever drops at the end of the NEUTRAL stop in the selector gate.
  • If the starter also operates at this point, the gearshift linkage is properly adjusted.
  • This quick test also tests the adjustment of the neutral safety switch.
  • If the engine does not start in either or both of these positions, the neutral safety switch or the gear selector linkage needs adjustment or repair.

CAUTION
Since you must work under the vehicle to adjust most shift linkages make sure you properly raise and support the vehicle before working under it. Also, wear safety glasses or goggles while working under the vehicle.
A voltmeter can be used to check the switch for voltage when the ignition key is turned to the START position with the shift lever in PARK or NEUTRAL. If there is no voltage, the switch should be adjusted or replaced.

Jan 26, 2013 | 2002 Jeep Grand Cherokee

1 Answer

Ignition


he ignition switch generally has four positions: off, accessories, on, and start. Some cars have two off positions, off and lock; one turns off the car, and the other allows the key to be removed from the ignition. When the key is turned to the accessories position, certain accessories, such as the radio, are powered; however, accessories that use too much battery power, such as window motors, remain off in order to prevent the car's battery from being drained. The accessories position uses the least amount of battery power when the engine is not running, which is why drive-in movie theaters recommend that the car be left in theaccessories mode during the movie.

The on position turns on all of the car's systems, including systems such as the fuel pump, because this is the position the ignition switch remains in while the car's engine is running. The start position is spring loaded so that the ignition switch will not remain there when the key is released. When the key is inserted into the ignition switch lock cylinder and turned to the start position, the starter engages; when the key is released, it returns to the on position, cutting power to the starter. This is because the engine runs at speeds that the starter cannot match, meaning that the starter gear must be retracted once the engine is running on its own.

Either the ignition switch or the lock cylinder may fail in a car, but both circumstances have very different symptoms. When the ignition switch fails, generally the electrical wiring or the plastic housing develops problems. The car may not turn on and/or start when this happens. Also, the spring-loaded start position could malfunction, in which case the starter will not engage unless the key is manually turned back to the on position.

When the lock cylinder malfunctions, however, the operation of the key itself will become problematic. If the tumblers become stripped, the lock cylinder may be able to turn with any key, or you may be able to remove the key when the car is on. If the tumblers begin to shift, the lock cylinder may not turn. Sometimes the key can be wiggled until the lock cylinder turns, but it is important to remember that this is only a temporary fix.

Replacing an ignition switch can be tricky business, particularly in newer cars, because of the anti-theft devices used in cars. Once the ignition switch is separated from the back of the lock cylinder, the car can be started with a screwdriver, making it vital that this switch be difficult to get to. It is important to consult a shop manual before attempting this kind of repair, as the anti-theft devices may require special tools; attempting to remove an ignition switch without the proper tools can render the car inoperable.


increase engine horsepower

Jun 02, 2012 | Volkswagen Transporter Cars & Trucks

1 Answer

The starter has been tested as good, but the car wont start, any ideas?


load test battery
check for tight, clean connections at battery
check neutral safety or clutch safety switch
check starter relay
check ignition switch
check engine and chassis grounds,
below is from the autozone.com site. click on red X's to view files

Four types of starter motor are utilized depending upon the vehicle transaxle and assembly plant location. Manual transaxle equipped vehicles utilize a conventional starter motor which consists of a yoke, an armature assembly, an overrunning clutch assembly, a solenoid, a commutator end cover, a brush holder and a pinion drive lever. Automatic transaxle equipped vehicles utilize a reduction type starter motor which has, in addition to the components found on conventional starter motors, a reduction gear and shock absorber assembly.
In the basic circuit, the solenoid windings are energized when the ignition switch is turn to the START position and the clutch start/neutral safety switch is closed. The resulting plunger and shift lever movement causes the pinion to engage the engine flywheel ring gear. This movement also causes the starter solenoid contacts to close.
With the contacts closed, the starter solenoid provides a closed circuit between the battery positive terminal and the starter motor. Because the starter motor is permanently grounded to the engine block, the circuit is complete and cranking occurs as soon as the starter solenoid contacts are closed.
When the engine starts, the pinion is designed to overrun and protect the armature from excessive speed until the ignition switch is released from the START position. With the ignition switch released, a return spring in the solenoid assembly forces the starter solenoid contacts open, breaks the circuit between the battery and the starter motor, and disengages the pinion. To prevent prolonged overrun, the ignition switch should be immediately released upon engine start-up.
See Figures 1 and 2



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Fig. Fig. 1: Electrical system diagnosis - No cranking condition



0900c152800487db.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Electrical system diagnosis - Slow cranking condition

Oct 15, 2010 | 1994 Geo Metro

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