2001 Pontiac Firebird Base, 2D Convertible, AutomaticFACTORY OEM SERVICE PROCEDURE

SL Models

PCM CONNECTOR J1 TERMINAL IDENTIFICATION (1.9L)

Pin Wire Color Circuit No. Function
1 DK BLU 417 Throttle Position Sensor - In
2 TAN 472 Air Temperature Sensor - In
3 LT GRN 432 Manifold Absolute Pressure Sensor - In
4 BRN 1456 Linear EGR - In
5 PPL/WHT 1668 Rear O2 - Hi - In
6 - - Not Used
7 DK BLU 496 Knock Sensor - In
8 YEL 573 Crank Position Sensor - 7X Hi - In
9 TAN 413 Front O2 - Lo - In
10 TAN 413 Rear O2 - Lo - In
11 GRY 416 Manifold Absolute Pressure Sensor - +5 Volts
12 BLK 452 Throttle Position Sensor - Return
13 WHT 1579 Oil Change Reset
14 - - Not Used
15 YEL 772 Selector Switch - B1 (Auto)
16-17 - - Not Used
18 PPL 898 Transaxle - 4th Out (Auto)
19-21 - - Not Used
22 BRN 1295 EVO - Lo
23 GRY 416 EGR + 5 Volts
24 - - Not Used
25 ORN/BLK 586 Transaxle Oil Temperature Sensor - In (Auto)
26 BRN/WHT 633 Camshaft Position - HI
27 PPL 401 Vehicle Speed Sensor - Lo
28 LT BLU 1876 Knock Sensor - Return
29 BLK 452 Air Temperature Sensor - Return
30 PPL 574 Crank Position Sensor - 7X Lo
31 BLK/WHT 771 Selector Switch - B0 (Auto)
32 BLK 452 Manifold Absolute Pressure Sensor - Return
33 DK BLU/WHT 1231 Turbine Speed Sensor - Lo (Auto)
34 YEL/BLK 68 Coolant Level
35 RED/BLK 1230 Turbine Speed Sensor - Hi (Auto)
36 WHT 776 Selector Switch - B3 (Auto)
37-38 - - Not Used
39 TAN/BLK 422 Transaxle - TCC Out (Auto)
40 LT GRN 1222 Transaxle - 2nd Out (Auto)
41 GRY 474 Throttle Position Sensor - + 5 Volts
42 LT GRN/BLK 444 Idle Air Control - B Lo - Out
43 LT BLU/BLK 1748 Idle Air Control - A Lo - Out
44 WHT 1294 EVO - Hi
45 LT GRN/WHT 1749 Idle Air Control - B Hi - Out
46 WHT 423 Electronic Ignition Module
47 - - Not Used
48 BLK 452 Coolant Temperature Sensor - Return
49-50 - - Not Used
51 TAN 31 Oil Pressure Sensor
52 GRY 773 Selector Switch - B2 (Auto)
53 BLK 452 Linear EGR - Return
54 YEL 410 Coolant Temperature Sensor In
55 TAN/WHT 551 Power Ground - Engine Ground Rear (Auto)
56 TAN/WHT 551 Power Ground - Engine Ground Rear
57 PNK/BLK 1746 Injector #3
58 - - Not Used
59 YEL/BLK 1223 Transaxle - 3rd Out (Auto)
60 DK BLU 1530 Transaxle - Main Line Pressure - Out (Auto)
61 RED 1676 Linear EGR - Power
62 BRN/WHT 25 Generator
63 LT BLU 697 Linear EGR - Out
64 LT BLU/WHT 1747 Idle Air Control - A Hi - Out
65 ORN 406 Electronic Ignition Module - EST 2-3 Out
66 BLK 452 Transaxle Fluid Sensor - Temperature Return (Auto)
67 PNK/BLK 429 UHFB - Air Solenoid
68 DK GRN 335 UHFB - Cooling Fan Relay Control
69 - - Not Used
70 BRN 436 UHFB - Air Pump
71 PPL 412 Front Oxygen Sensor - Hi - In
72 YEL 400 Vehicle Speed Sensor - Hi - In
73 - - Not Used
74 DK GRN/WHT 428 Evaporator Emission Purge Solenoid - Out
75 BLK/WHT 1423 Heated O2
76 TAN/WHT 551 Power Ground - Engine Ground Rear
77 TAN/WHT 551 Power Ground - Engine Ground Rear (Auto)
78 LT BLU/BLK 844 Injector #4
79 BLK 1744 Injector #1
80 LT GRN/BLK 1745 Injector #2
PCM CONNECTOR J2 TERMINAL IDENTIFICATION (1.9L)

Pin Wire Color Circuit No. Function
1 ORN 1140 UHFB - PCM B Fuse
2 GRY 416 I/P to Body Inline - Fuel Tank Pressure Sensor - + 5 Volt
3 GRY 1884 Roll Connector - Cruise Resume/Accel
4-6 - - Not Used
7 PPL 30 I/P to Body Inline - Fuel Level - In
8 GRN 1140 UHFB - PCM B Fuse
9 - - Not Used
10 DK GRN 890 I/P to Body Inline - Fuel Tank Pressure Sensor - In
11 PPL 1807 Cluster - Class 2
12 PPL 1807 EBTCM - Class 2 (ABS)/Body Control Module - Class 2 (Non-ABS)
13 LT BLU 1888 Cruse Control Module - Cruse Clutch
14 WHT 1310 I/P to Body Inline - EVAP Emission Vent Solenoid - Out
15 ORN/BLK 469 IPFB - Fuel Tank Pressure Sensor - Return
16 - - Not Used
17 BLK/WHT 251 I/P to Body Inline - Fuel Level Return
18 - - Not Used
19 LT GRN 1887 Cruise Control Module
20 - - Not Used
21 GRY 729 UHFB - A/C Clutch Relay
22 - - Not Used
23 PNK 439 UHFB - Ignition
24 - - Not Used
25 DK GRN/WHT 465 IPFB - Fuel Pump
26 BRN 86 Brake Pedal Switch
27 - - Not Used
28 PNK 1886 Cruise Control Module
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.