For 1990-2009 cars

Table 1: | Powertrain Control Module (PCM) C1 - Blue Retainer
Table 2: | Powertrain Control Module (PCM) C2 - Red Retainer

#### Powertrain Control Module (PCM) C1 - Blue Retainer

Connector Part Information |

• | 12191489

• | 80 Way F Micro-Pack 100 W Series, Sealed (NAT)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | BLK/WHT | 451 | Ground
2 | LT GRN | 1867 | 12 Volt Reference
3 | PNK/BLK | 1746 | Fuel Injector 3 Control
4 | LT GRN/BLK | 1745 | Fuel Injector 2 Control
5-6 | -- | -- | Not Used
7 | GRY | 705 | 5 Volt Reference
8-10 | -- | -- | Not Used
11 | LT BLU | 1876 | Knock Sensor 2 Signal
12 | DK BLU/WHT | 1869 | CKP Sensor Signal
13 | -- | -- | Not Used
14 | ORN/BLK | 1061 | UART Serial Data - Secondary
15 | DK BLU/WHT | 774 | UART Serial Data - Tertiary
16-18 | -- | -- | Not Used
19 | PNK | 339 | Ignition 1 Voltage
20 | ORN | 40 | Battery Positive Voltage
21 | YEL/BLK | 1868 | Low Reference
22 | LT GRN | 488 | PTO On Switch Signal
23-25 | -- | -- | Not Used
26 | TAN | 413 | HO2S Low Signal
27-28 | -- | -- | Not Used
29 | TAN | 413 | HO2S Low Signal
30 | YEL/BLK | 68 | Low Coolant Level Indicator Control
31 | DK GRN | 534 | High Idle Switch Output
32 | -- | -- | Not Used
33 | PPL | 420 | TCC Brake Switch Signal
34 | ORN/BLK | 434 | Neutral Safety Switch Signal
35 | BRN/WHT | 379 | CPP Switch Signal
36 | BLK | 1744 | Fuel Injector 1 Control
37 | YEL/BLK | 846 | Fuel Injector 6 Control
38 | GRY | 803 | Change Engine Oil Indicator Control
39 | YEL | 447 | Starter Relay Coil Control
40 | BLK/WHT | 451 | Ground
41 | PPL | 719 | Low Reference
42 | DK BLU | 527 | Engine Shutdown Alarm Signal
43 | RED/BLK | 877 | Fuel Injector 7 Control
44 | LT BLU/BLK | 844 | Fuel Injector 4 Control
45-46 | -- | -- | Not Used
47 | GRY | 596 | 5 Volt Reference
48 | GRY | 597 | 5 Volt Reference
49-50 | -- | -- | Not Used
51 | DK BLU | 496 | KS (1) Signal
52-53 | -- | -- | Not Used
54 | ORN/BLK | 469 | Low Reference
55-56 | -- | -- | Not Used
57 | ORN | 40 | Battery Positive Voltage
58 | DK GRN | 1049 | PCM Class 2 Serial Data
59 | -- | -- | Not Used
60 | TAN | 413 | HO2S Low Signal
61 | PNK/BLK | 632 | Low Reference
62 | -- | -- | Not Used
63 | BLK | 407 | Low Reference
64-65 | -- | -- | Not Used
66 | PPL | 1666 | HO2S High Signal
67-68 | -- | -- | Not Used
69 | PPL/WHT | 1665 | HO2S High Signal
70 | -- | -- | Not Used
71 | LT BLU | 494 | Power Takeoff Switch Output
72 | -- | -- | Not Used
73 | BRN/WHT | 633 | CMP Sensor Signal
74 | YEL | 410 | ECT Sensor Signal
75 | -- | -- | Not Used
76 | BLK/WHT | 845 | Fuel Injector 5 Control
77 | DK BLU/WHT | 878 | Fuel Injector 8 Control
78 | PPL | 2562 | Power Takeoff Relay Output-Coil
79 | -- | -- | Not Used
80 | GRY | 720 | Low Reference

#### Powertrain Control Module (PCM) C2 - Red Retainer

Connector Part Information |

• | 12191488

• | 80 Way F Micro-Pack 100 W Series, Sealed (NAT)

Pin | Wire Color | Circuit No. | Function
--- | --- | --- | ---
1 | BLK/WHT | 451 | Ground
2-6 | -- | -- | Not Used
8 | -- | -- | Not Used
9 | DK GRN/WHT | 465 | Fuel Pump Relay Control
10 | WHT | 121 | Engine Speed Signal
11-14 | -- | -- | Not Used
15 | RED | 225 | Generator Turn On Signal
16-17 | -- | -- | Not Used
19 | GRY/BLK | 1467 | Two-Speed Rear Axle Shift Motor Relay Control
20 | LT GRN/BLK | 822 | VSS Low Signal
21 | PPL/WHT | 821 | VSS High Signal
22-24 | -- | -- | Not Used
25 | TAN | 472 | IAT Sensor Signal
26 | PPL | 2121 | IC 1 Control
27 | RED | 2127 | IC 7 Control
28 | LT BLU/WHT | 2126 | IC 6 Control
29 | DK GRN/WHT | 2124 | IC 4 Control
30 | -- | -- | Not Used
31 | YEL | 492 | MAF Sensor Signal
32 | LT GRN | 432 | MAP Sensor Signal
33 | LT BLU | 1377 | Check Gauges Indicator Control
34 | DK GRN/WHT | 428 | EVAP Canister Purge Solenoid Control
35 | BRN | 25 | Charge Indicator Control
36 | -- | -- | Not Used
37 | WHT/BLK | 499 | Reduced Engine Power Indicator Control
38 | BRN | 445 | Oil Pressure Gage Signal
39 | RED | 631 | 12 Volt Reference
40 | BLK/WHT | 451 | Ground
42 | GRY | 324 | Shift Relay Coil Supply Voltage
43 | -- | -- | Not Used
44 | RED | 2013 | High Idle Indicator Control
45 | -- | -- | Not Used
46 | BRN/WHT | 419 | MIL Control
47 | DK BLU | 1938 | Engine Overspeed Indicator Control
48-49 | -- | -- | Not Used
50 | DK GRN/WHT | 817 | Vehicle Speed Signal
51 | -- | -- | Not Used
52 | GRY | 23 | Generator Field Duty Cycle Signal
53-56 | -- | -- | Not Used
57 | BLK | 552 | Low Reference
58 | TAN/WHT | 332 | Oil Pressure Sensor Signal
59 | PPL | 806 | Crank Voltage
60 | BRN | 2129 | Low Reference
61 | BRN/WHT | 2130 | Low Reference
62-65 | -- | -- | Not Used
66 | PPL/WHT | 2128 | IC 8 Control
67 | RED/WHT | 2122 | IC 2 Control
68 | DK GRN | 2125 | IC 5 Control
69 | LT BLU | 2123 | IC 3 Control
70-73 | -- | -- | Not Used
74 | LT GRN/WHT | 3213 | HO2S Heater Power
75-79 | -- | -- | Not Used
80 | LT GRN | 3212 | HO2S Heater Ground