My 98 saab 900's check engine and check gear box lights keep lighting up, the car even shut down completely on me today for a few minutes. the diagnostic code read p1624 while the lights were on, but the lights have gone back off again and the car is driving fine now.
Hi there:
DTC P1624 - MIL Request Signal active
This code is only the TCM (Transmission Control Module) telling the ECM (Engine Control Module) to turn on the check engine light.
If you don't have other codes there, could be a Communication Lost from the TCM; first I suggest to check all fuses and good harnesses conections correctly.
Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.
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SOURCE: 1995 saab 900 turbo
Two most common problems for this are the DIC and the fuel pump. Can also be the CPS. First check the code. You can try this first before going to a code reader: 1.With the car already off, switch on the ignition without starting the engine. 2. After approx. 6 seconds, the 'Check Engine' light goes out for an instant before lighting up again for 3 seconds. This 3 second flash is a warning that the actual flashing code is about to start. 3. The flashing code consists of a number of short flashes lasting 0.4 seconds. The 'Check Engine' light goes out for 2 seconds between each new flashing code (if there is more than one fault). 4. After the last flashing code, the 'Check Engine' light goes out for 3 seconds before lighting up again for 3 seconds, after which the flashing codes are repeated. Readout continues in this way as many times as you wish. Number of flashes / Function 2 / Manifold absolute pressure sensor 3 / Temperature sensor, manifold 4 / Temperature sensor, coolant 5 / Throttle position sensor 6 / Oxygen sensor 7 / Adaptation 8 / Purge valve (EVAP valve) 9 / ECM, internal fault If no flashing codes display, the problem is something else (other than those nine listed above) and must be determined using a generic code reader that supports OBD 1, or using the GM/Saab Tech II code reader and programmer. My money is on the DIC as it is a very common failure component and fuel pump failures rarely throw a code. The DICs are good generally to 100,000 to 150,000 miles, but this varies wildly, especially if the car is run with overgapped plugs for any length of time. The plug gap should be 1 mm and no more. Cars that are scrupulously maintained vis-a-vis the plug gapping can see DICs last over 200,000 miles.
SOURCE: saab 900 s
what kind of car do you have?
Is your car with distributor or electrical egnition?
the fuel pump is not the at fualt.
in your son car are only two common problems or electricity does not come. Or fuel does not come good like is supose to come.
SOURCE: Saab 1997 900 - car suddenly shuts off while driving
I have been trying to figure out the same on my 95' Saab 900 V6 . I am a Mechanic and this thing has been a real Pickle if you know what I mean/ I pulled the ignition switch and the contacts on the plug were corroded and suspect that I am not getting a good enough contact inside the unit . (The reason why I have not suspected this is because it was replaced in 03' with a new one, but the way in it mounted vertically has got to be a reason for corrosion.)Might have been due to the sunroof been left open in the rain. So I would suggest replacing the IGNITION SWTICH with a new one, or used (with warranty i.e. Ebay) one if possible. Also put some Electrical tape on the new unti so it will never get any moisture inside>
SOURCE: Check engine & check gear box light on 1998 Saab 200S
not sure, run a code scanner on it and post the trouble code that would help to diagnose. Your local auto parts store can probably scan it for you.
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