SATURN IGNITION BYPASS OPEN OR SHORTED - 1997 Saturn SC

If you have no DTC's then it could just be your fuel pump. To test that theory, spray a small amount of carburetor cleaner into the air intake of your car and then see if it will start and run for a short while. If you can bypass the air filter that would help with this method. If it does start, then you're more than likely in need of a new fuel pump. If it doesn't start then you'll need to troubleshoot why you don't have ignition spark.

unless u use key in ignition which is coded to vehicle for --security,ignition,your vehicle will not start===the key gets recognized and the computer than starts vehicle trying to by passing will cause all sorts of problems that the basics the security and passlock technology as well as saftey makes just bypassing anything almost impossible with out disabling the vehicle to point of shut down where you would need to bring to dealer for software hook ups for repairs

I think you ether missed a wire or miss placed a wire and have a short or no connection where you need one recheck all wiring on starter make sure there is no lose wires

The 2000 saturn runs the passlock system. Unlike VATS its predecesser, this system is much harder to bypass. The old "resister" trick that many people still do, does not apply for this system. So lets start at the basics. The security light flashing indicates 1 of 3 things. The problem in your passlock is either in the KEY, IGNITION LOCK CYLINDER, or WIRING before the Theft Deterrent Module (computer). This means you could replace the key or the ignition (whichever is to blame) and you might be ok. You would have to reprogram the key to the ignition. The other option is to bypass it. Unfortunately that costs money also, but honestly no more than a new transponder key and far less than a Lock Cylinder. Just trying to give you all the options. Here is a link that explains the SECURITY problem rather well and gives some good tricks and options for fixing this yourself permanently

http://vatspasslockpasskeysecurityhelp.yolasite.com/

The Check Engine light will light when the ECU stores a trouble code.
Counting the Flashes
To retrieve trouble codes, turn the ignition key to the "on" position with the engine OFF.
The Check engine light will flash many short blinks. The total number of blinks equals the code number. For example, flash,pause, flash,flash = code 12.If more than one code is stored, the Check engine light will flash the codes in sequence (lowest to highest) with a pause between each code. The codes will repeat until the key is turned to the OFF position.

11 Transaxle codes present 12 Diagnostic check only 13 Oxygen sensor circuit 14 Coolant sensor/high temperature 15 Coolant sensor/low temperature 17 PCM fault - pull-up resistor 19 6X signal fault (92-95 models) 21 Throttle position sensor-voltage high 22 Throttle position sensor-voltage low 23 IAT circuit low 24 VSS circuit-no signal 25 IAT circuit-Temp out of high range 26 Quad driver output fault 32 EGR system fault 33 MAP sensor - voltage out of range high 34 MAP sensor - voltage out of range low 35 IAC - rpm out of range 41 Ignition control circuit-open or shorted 42 Bypass circuit - shorted or open 41/42 IC control circuit grounded/bypass open 43 Knock sensor circuit shorted or open 44 O2 sensor indicates lean condition 45 O2 sensor indicates rich condition 46 Power steeringpressure circit(91 models)open or shorted 49 High idle indicates vacuum leak 51 PCM memory error 53 System voltage error 55 A/D error 58 trans fluid temperature too high 59 Trans fluid temperature too low 66/67 A/C pressure sensor 81 ABS message fault 82 PCM internal communication fault

well easiest way is to tape the old key near the ignition

without key you need to essentially re wire the ignition and under the hood arround the computer controlls and power supply

Did you get the code that triggered the SEL? If you know that, it will be easier to diagnose your problem. You can do it without a tool on the old saturns. Just need a paperclip. :

Use a paper clip to jumper Terminal A and B of the ALDL *Assembly Line Diagnostic Link* which is above your left knee.
Terminal A is an interal ground and is the top right terminal in the connector. Terminal B is directly adjacent and to the left of Terminal A.

Turn the ignition to ON.

All codes are 2 digits between 11 and 99. Codes are displayed on the SES light by flashing the light with short and long pauses to distinguish digits of one code from digits of another. The short pause is used between digits of the same code, long pauses are between codes. Also, each code is flashed three times before going to the next code.

For example, the sequence of code 12 will be: flash, pause, flash-flash, long pause, then repeat 2 times. If Code 12 is not displayed, the self-diagnostic pogram i snot functioning properly.

If only Code 12 is displayed, no system malfunctions have been stored.

Any existing system fault codes are displayed in order from low to high, except for Code 11.

On vehicles with an automatic transaxle and on which exist stored transaxle codes, Code 11 will be displayed last, then the SHIFT TO D2 light will begin flashing transaxle codes of flags.

When all engine codes have been displayed, Code 12 will flash again.

Diagnostic Codes
11. Transaxle Codes present
12. Diagnostic System Check
13. Oxygen sensor, circuit open or not ready
14. CTS circuit, out of range high
15. CTS circuit, out of range low
17. PCM fault, pullup resistor
19. 6x signal fault, no 6x signal between reference pulses
21. TPS circuit, out of range high
22. TPS circuit, out of range low
23. ATS circuit, out range low
24. VSS circuit, no signal
25. ATS circuit, out or range high
26. Quad Driver output fault
32. EGR system fault
33. MAP sensor circuit, out of range high
34. MAP sensor circuit, out of range low
35. IAC valve, rpm out of range
41A EST circuit open
41B EST circuit shorted
42A Bypass circuit grounded
42B Bypass circuit open
42C Bypass circuit shorted
41. EST bypass, open or shorted
42. EST bypass, open or shorted
43. ECS (knock sensor) circuit open or shorted
44. Oxygen sensor indicates system lean
45. Oxygen sensor indicates system rich
46. Power steering pressure switch circuit, open
49. Idle rpm out of limit high (vacuum leak)
51. PCM memory error
55. A/D converter error in PCM
81. ABS message fault (1993 vehicles with TCS)
82 PCM internal communication fault


Diagnostic Flags
27. Quick quad driver output fault (1993 only)
48. Reference imput intermittent or noisy
52. Battery voltage out of range
53. ESC knock present
54. Five volt reference ground
58. Battery voltage unstable
61. 6x signal fault
63. Option check sum error
67. Handwheel sensor circuit fault
71. Cooling system temperature high
72. Coolinng system temeprature low
73. CTS sensor unstable
74. CTS/transaxle temperatuer sensor ratio error
76. ATS sensor unstable
83. Low coolant (1993 only)

if by bypass you mean the ignition switch. jump it at the relay, find the starter relay the relay should have a diagram on the side and numbered posts on the bottom with a jumper wire you can jump the post in the power distribution. look at the diagram there should be a switch which shows normally open you need to jump the posts that would close this switch and this will jump you starter make sure you key is on to start the vehicle. hope this helps some