| Table 1: | Engine Control Module (ECM) C1 |
| Table 2: | Engine Control Module (ECM) C2 |
| Table 3: | Engine Control Module (ECM) C3 |
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Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||
1 | TN/WH | 2500 | High Speed GMLAN Serial Data Bus (+) | ||||
2 | TN | 2501 | High Speed GMLAN Serial Data Bus (-) | ||||
3 | -- | -- | Not Used | ||||
4 | BN/WH | 419 | MIL Control | ||||
5-6 | -- | -- | Not Used | ||||
7 | BN | 1271 | Low Reference | ||||
8 | PU | 1272 | Low Reference | ||||
9 | -- | -- | Not Used | ||||
10 | YE | 5991 | Powertrain Relay Coil Control | ||||
11-12 | -- | -- | Not Used | ||||
13 | YE/BK | 625 | Starter Enable Relay Control | ||||
14 | PK | 839 | Ignition 1 Voltage | ||||
15 | YE | 710 | Class 2 Serial Data | ||||
16 | D-GN | 1049 | Class 2 Serial Data | ||||
17 | GY | 397 | Cruise Control On Switch Signal | ||||
18 | PK | 1020 | Ignition 0 Voltage | ||||
19 | PK | 439 | Ignition 1 Voltage | ||||
20 | OG | 240 | Battery Positive Voltage | ||||
21 | D-GN/WH | 817 | Vehicle Speed Signal | ||||
22 | D-BU | 1161 | APP Sensor 1 Signal | ||||
23 | D-BU | 2364 | Cooling Fan Speed Signal | ||||
24 | D-GN | 890 | Fuel Tank Pressure Sensor Signal | ||||
25 | -- | -- | Not Used | ||||
26 | RD/BK | 380 | A/C Refrigerant Pressure Sensor Signal | ||||
27 | D-BU | 84 | Cruise Control Set/Coast Switch Signal | ||||
28 | -- | -- | Not Used | ||||
29 | TN | 1274 | 5-Volt Reference | ||||
30 | GY | 2700 | 5-Volt Reference | ||||
31 | GY | 2709 | 5-Volt Reference | ||||
32 | L-BU | 1320 | CHMSL Supply Voltage | ||||
33 | GY/BK | 87 | Cruise Control Resume/Accel Switch Signal | ||||
34 | -- | -- | Not Used | ||||
35 | WH/BK | 1164 | 5-Volt Reference | ||||
36 | WH/BK | 2366 | Cooling Fan Clutch Control | ||||
37 | PU | 1589 | Fuel Level Sensor Signal | ||||
38-40 | -- | -- | Not Used | ||||
41 | L-BU | 1162 | APP Sensor 2 Signal | ||||
42-44 | -- | -- | Not Used | ||||
45 | D-GN/WH | 465 | Fuel Pump Relay Control | ||||
46 | PU | 420 | TCC Brake Switch/Cruise Control Release Signal | ||||
47 | -- | -- | Not Used | ||||
48 | WH | 121 | Engine Speed Signal | ||||
49 | YE/BK | 1827 | Vehicle Speed Signal | ||||
50 | -- | -- | Not Used | ||||
51 | OG/BK | 1786 | Ignition Lock Cylinder Control Actuator Signal | ||||
52 | PU | 806 | Crank Voltage | ||||
53 | -- | -- | Not Used | ||||
54 | WH | 1310 | EVAP Canister Vent Solenoid Control | ||||
55 | BK | 2751 | Low Reference | ||||
56 | -- | -- | Not Used | ||||
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Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||
1 | L-GN | 3212 | HO2S Heater Low Control - Bank 2 Sensor 1 | ||||
2 | BK/WH | 3113 | HO2S Heater Low Control - Bank 1 Sensor 1 | ||||
3 | -- | -- | Not Used | ||||
4 | D-BU/WH | 878 | Fuel Injector 8 Control | ||||
5 | BK | 1744 | Fuel Injector 1 Control | ||||
6 | L-GN/BK | 1745 | Fuel Injector 2 Control | ||||
7 | RD/BK | 877 | Fuel Injector 7 Control | ||||
8 | L-BU/BK | 844 | Fuel Injector 4 Control | ||||
9 | PK/BK | 1746 | Fuel Injector 3 Control | ||||
10 | BK/WH | 845 | Fuel Injector 5 Control | ||||
11-12 | -- | -- | Not Used | ||||
13 | YE/BK | 846 | Fuel Injector 6 Control | ||||
14 | YE/BK | 1868 | Low Reference | ||||
15 | PK/BK | 632 | Low Reference | ||||
16 | BN | 2129 | Low Reference | ||||
17-19 | -- | -- | Not Used | ||||
20 | OG/BK | 469 | Low Reference | ||||
21 | BK | 2755 | Low Reference | ||||
22-23 | -- | -- | Not Used | ||||
24 | TN/WH | 332 | Oil Pressure Sensor Signal | ||||
25 | -- | -- | Not Used | ||||
26 | BN/WH | 633 | CMP Sensor Signal | ||||
27-28 | -- | -- | Not Used | ||||
29 | PU | 486 | TP Sensor 2 Signal | ||||
30 | -- | -- | Not Used | ||||
31 | D-GN | 485 | TP Sensor 1 Signal | ||||
32-34 | -- | -- | Not Used | ||||
35 | GY | 2704 | 5-Volt Reference | ||||
36 | BK/WH | 1704 | Low Reference | ||||
37 | GY | 2705 | 5-Volt Reference | ||||
38-40 | -- | -- | Not Used | ||||
41 | L-BU/BK | 1688 | 5-Volt Reference | ||||
42 | -- | -- | Not Used | ||||
43 | L-GN | 1867 | 12-Volt Reference | ||||
44 | RD | 631 | 12-Volt Reference | ||||
45 | GY | 23 | Generator Field Duty Cycle Signal | ||||
46 | L-GN | 432 | MAP Sensor Signal | ||||
47 | -- | -- | Not Used | ||||
48 | PU/WH | 1665 | HO2S High Signal - Bank 1 Sensor 1 | ||||
49 | TN | 1664 | HO2S Low Signal - Bank 1 Sensor 1 | ||||
50 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control | ||||
51 | PU | 1666 | HO2S High Signal - Bank 2 Sensor 1 | ||||
52 | BK | 2761 | Low Reference | ||||
53 | RD | 2127 | IC 7 Control | ||||
54 | PU | 2121 | IC 1 Control | ||||
55 | YE | 410 | ECT Sensor Signal | ||||
56 | RD | 225 | Generator Turn On Signal | ||||
57 | L-BU/WH | 2126 | IC 6 Control | ||||
58 | D-GN/WH | 2124 | IC 4 Control | ||||
59 | D-GN | 2125 | IC 5 Control | ||||
60 | BN | 582 | TAC Motor Control - 2 | ||||
61 | L-BU | 2123 | IC 3 Control | ||||
62 | D-BU/WH | 1869 | CKP Sensor Signal | ||||
63 | YE | 581 | TAC Motor Control - 1 | ||||
64 | BN/WH | 2130 | Low Reference | ||||
65 | PU/WH | 2128 | IC 8 Control | ||||
66 | RD/WH | 2122 | IC 2 Control | ||||
67 | -- | -- | Not Used | ||||
68 | D-BU | 496 | Knock Sensor 1 Signal | ||||
69 | GY | 1716 | Low Reference | ||||
70 | TN | 1667 | HO2S Low Signal - Bank 2 Sensor 1 | ||||
71 | GY | 2303 | Low Reference | ||||
72 | L-BU | 1876 | Knock Sensor 2 Signal | ||||
73 | BK | 450 | Ground | ||||
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|---|---|---|---|---|---|---|---|
Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||
1 | -- | -- | Not Used | ||||
2 | BN | 2391 | HO2S Heater Low Control - Bank 1 Sensor 2 | ||||
3 | RD/WH | 3223 | HO2S Heater Low Control - Bank 2 Sensor 2 | ||||
4-10 | -- | -- | Not Used | ||||
11 | YE | 492 | MAF Sensor Signal | ||||
12-17 | -- | -- | Not Used | ||||
18 | TN/WH | 1669 | HO2S Low Signal - Bank 1 Sensor 2 | ||||
19 | PU/WH | 1668 | HO2S High Signal - Bank 1 Sensor 2 | ||||
20 | PU | 1670 | HO2S High Signal - Bank 2 Sensor 2 | ||||
21 | TN | 1671 | HO2S Low Signal - Bank 2 Sensor 2 | ||||
22-23 | -- | -- | Not Used | ||||
24 | BK | 2760 | Low Reference | ||||
25-28 | -- | -- | Not Used | ||||
29 | GY/BK | 1694 | 4WD Low Signal | ||||
30-32 | -- | -- | Not Used | ||||
33 | GY | 2365 | Low Reference | ||||
34 | TN | 472 | IAT Sensor Signal | ||||
35 | GY | 597 | 5-Volt Reference | ||||
36-44 | -- | -- | Not Used | ||||
45 | YE | 400 | Signal High - Front | ||||
46-48 | -- | -- | Not Used | ||||
49 | BK | 2759 | Low Reference | ||||
50 | -- | -- | Not Used | ||||
51 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control | ||||
52-56 | -- | -- | Not Used | ||||
