3 Gen Felkoder.



If your car does not have the 12 pin DLC connector,
you may not be able to manually "flash" your trouble codes.
The language "may be possible" appears to suggest that this
method should work with most, if not all, 12 pin DLC equipped cars.

THE CONNECTOR



DISPLAYING THE TROUBLE CODES

Run a wire/hairpin from Pin B to Pin A with the ignition off (although on later cars it should be from Pin B to Pin A), then turning the ignition to the on position without starting the engine will flash the "Service Engine Soon" light in the following sequence: flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause Following this "12" code repeating three times will come any trouble codes stored, flashing each of them three times. If you do not see the "12" flash three times, your diagnostic circuit is defective. Some vehicles will display stored trouble codes, then "12" again, followed by energizing "most system controlled relays." The fuel pump relay will not energize. The idle air control valve will fully extend to enable checking minimum idle speed.

CLEARING THE TROUBLE CODES

Turn the keyswitch to the off position. To clear any trouble codes, disconnect the power feed for 30 seconds. If this is done at the battery, and your car stereo is equipped and programmed with a four digit pin code, you may have to re-enter that as well to use your stereo again. A better place to remove power is at the fuse.

TROUBLE CODES


12. No reference pulses to Electronic Control Module (ECM).
13. Oxygen sensor signal stays lean during warm engine cruise
14. High temperature indicated at engine coolant temp. sensor
15. Low temperature indicated at engine coolant temp. sensor
16. High battery voltage OR
16. Direct inition system open or shorted to ground
17. RPM signal problem
18-20. N/A
21. High voltage at throttle positon sensor
22. Low voltage at throttle positon sensor OR
22. Fuel cutoff relay circuit open or shorted to ground
23. Low temperature at manifold air temperature sensor OR
23. Throttle position sensor error
24. Circuit fault in vehicle speed sensor
25. High temperature at manifold air temperature sensor OR
25. Vacuum switching valve circuit open or shorted to ground OR
25. High voltage at ATS sensor
26. Fault in quad driver module
27. Fault in 2nd gear switch
28. Fault in 3rd gear switch
29. Fault in 4th gear switch
30. N/A
31. Low voltage at manifold absolute pressure sensor OR
31. Fuel injector OR
31. Park or neutral switch OR
31. CAM diagnostic OR
31. Governor malfunction OR
31. Wastegate overboost OR
31. Wastegate eletrical signal open or shorted to ground
32. Fault in barometric pressure sensor circuit OR
32. Fault in exhaust gas recirculation valve diagnostic switch OR
32. Fault in electronic vacuum regulator valve
33. High voltage (low vacuum) at mass air flow sensor (or MAP sensor)
34. Low voltage (high vacuum) at mass air flow sensor (or MAP sensor)
35. Idle speed can not be set to desired RPM
36. Burn off at mass air flow sensor OR
36. Problem in transmission shift OR
36. Fault in direct ignition system OR
36. Missing pulses in electronic spark timing signal
37. N/A
38. Fault in torque converter clutch brake switch
39. Fault in torque converter clutch circuit
40. N/A
41. Fault at cam sensor OR
41. Cylinder select error OR
41. Tach input error
42. Fault at electronic spark timing circuit OR
42. Fault at direct ignition system OR
24. Fault at fuel cutoff relay circuit
43. Low voltage at electronic spark timing circuit
44. Oxygen sensor lean
45. Oxygen sensor rich
46. Fault at vehicle anti-theft sytem OR
46. Fault at power steering switch
47. Problem at Electronic Control Module (ECM)
48. Misfire
49. Vacuum leak
50. N/A
51. PROM error
52. Problem at Electronic Control Module (ECM) -
52. Missing fuel calpac missing OR
52. Analog to digital converter error OR
52. Fault at quad driver module OR
52. Low voltage at oil temperature sensor
53. High voltage at battery OR
53. High voltage at exhaust gas recirculation valve OR
53. Voltage reference error OR
53. Problem at vehicle anti-theft system
54. Low voltage at fuel pump OR
54. Low voltage at Fuel pump relay OR
54. Output failure at quad driver module
55. Problem at Electronic Control Module (ECM) -
55. ECM failure OR
55. Serial bus error OR
55. Fuel lean malfunction
56. Low coolant or corrosivity OR
56. Fault in port throttle system vacuum sensor
57. N/A
58. Problem at vehicle anti-theft system
59-60. N/A
61. Oxygen sensor degraded OR
61. Port throttle system error OR
61. Cruise control problems
62. Gear switch input diagnostics OR
62. High voltage at oil temperature sensor OR
62. Fault in cruise control- vacuum solenoid circuit
63. High voltage at manifold absolute pressure sensor OR
63. Fault in exhaust gas recirculation valve OR
63. Fault at right oxygen sensor
64. Low voltage at manifold absolute pressure sensor OR
64. Fault in exhaust gas recirculation valve OR
64. Right oxygen sensor lean
65. Failure at exhaust gas recirculation valve OR
65. Faulure at injector peak/hold diagnostic OR
65. Right oxygen sensor rich OR
65. Fault at cruise control position sensor
66. Internal reset of Electronic Control Module (ECM)
67. Fault at cruise control switch
68. Fault at cruise control switch
69. Fault at air conditioner pressure switch
70-87. N/A
88. Internal reset of Electronic Control Module (ECM)



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