| Connector 1: | Engine Control Module (ECM) C1 |
| Connector 2: | Engine Control Module (ECM) C2 |
| Connector 3: | Engine Control Module (ECM) C3 |
Engine Control Module (ECM) C1
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1-6 | -- | -- | Not Used |
7 | L-GN | 526 | Stop Lamp Supply Voltage |
8 | -- | -- | Not Used |
9 | TN | 2759 | Low Reference |
10-11 | -- | -- | Not Used |
12 | BN/WH | 419 | MIL Control |
13 | D-GN/WH | 465 | Fuel Pump Relay Control |
14 | -- | -- | Not Used |
15 | D-GN | 1049 | Class 2 Serial Data |
16-17 | -- | -- | Not Used |
18 | BN | 1141 | Accessory Voltage |
19 | PK | 439 | Ignition 1 Voltage |
20 | RD/WH | 540 | Battery Positive Voltage |
21-28 | -- | -- | Not Used |
29 | GY | 1884 | Cruise Control Switch Signal |
30-32 | -- | -- | Not Used |
33 | WH/BK | 1164 | 5-Volt Reference |
34 | GY | 2709 | 5-Volt Reference |
35 | TN | 1274 | 5-Volt Reference |
36 | BN | 1271 | Low Reference |
37 | PU | 1272 | Low Reference |
38 | -- | -- | Not Used |
39 | D-GN | 389 | Vehicle Speed Signal |
40 | BN | 5069 | Powertrain Relay Control |
41-43 | -- | -- | Not Used |
44 | PU | 1589 | Fuel Level Sensor Signal |
45-46 | -- | -- | Not Used |
47 | D-BU | 1161 | APP Sensor 1 Signal |
48 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
49 | L-BU | 1162 | APP Sensor 2 Signal |
50-52 | -- | -- | Not Used |
53 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
54 | D-BU | 473 | High Speed Cooling Fan Relay Control |
55 | WH | 1310 | EVAP Canister Vent Solenoid Control |
56 | YE/BK | 625 | Starter Enable Relay Control |
Engine Control Module (ECM) C2
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1 | PU | 2121 | IC 1 Control |
2 | TN/WH | 3111 | HO2S Low Signal - Sensor 1 |
3 | PU/WH | 3110 | HO2S High Signal - Sensor 1 |
4 | PU | 3120 | HO2S High Signal - Sensor 2 |
5 | GY | 3122 | HO2S Low Signal - Sensor 2 |
6 | L-BU | 1876 | KS 2 Signal |
7 | GY | 2303 | KS 2 Signal |
8 | D-BU | 496 | KS 1 Signal |
9 | GY | 1716 | KS 1 Signal |
10 | BK/WH | 1251 | Ground |
11 | YE | 581 | TAC Motor Control - 1 |
12 | BN | 582 | TAC Motor Control - 2 |
13 | PK/BK | 5290 | Ignition 1 Voltage |
14 | BN | 2198 | Camshaft Position Actuator Solenoid High Control |
15-16 | -- | -- | Not Used |
17 | OG/WH | 2122 | IC 2 Control |
18-22 | -- | -- | Not Used |
23 | TN | 407 | Low Reference |
24 | TN | 808 | Low Reference |
25 | -- | -- | Not Used |
26 | BK/WH | 1251 | Ground |
27 | YE/BK | 1868 | Low Reference |
28 | -- | -- | Not Used |
29 | TN | 2752 | Low Reference |
30-31 | -- | -- | Not Used |
32 | L-BU/BK | 844 | Fuel Injector 4 Control |
33 | L-BU | 2123 | IC 3 Control |
34 | -- | -- | Not Used |
35 | YE | 2174 | Low Reference |
36-38 | -- | -- | Not Used |
39 | D-BU | 6259 | 5-Volt Reference |
40 | GY | 605 | 5-Volt Reference |
41 | -- | -- | Not Used |
42 | TN | 2760 | Low Reference |
43 | L-GN | 1867 | 5-Volt Reference |
44 | GY | 2701 | 5-Volt Reference |
45 | -- | -- | Not Used |
46 | TN | 2199 | Low Reference |
47 | -- | -- | Not Used |
48 | L-GN/BK | 1745 | Fuel Injector 2 Control |
49 | YE/BK | 846 | Fuel Injector 6 Control |
50-51 | -- | -- | Not Used |
52 | TN/WH | 845 | Fuel Injector 5 Control |
53-58 | -- | -- | Not Used |
59 | BN/WH | 633 | CMP Sensor Signal |
60 | TN/WH | 331 | Oil Pressure Sensor Signal |
61 | -- | -- | Not Used |
62 | TN | 472 | IAT Sensor Signal |
63 | L-BU/WH | 1800 | CKP Sensor Signal |
64 | D-GN | 485 | TP Sensor 1 Signal |
65 | -- | -- | Not Used |
66 | PU | 486 | TP Sensor 2 Signal |
67 | YE | 492 | MAF Sensor Signal |
68 | GY/WH | 3113 | HO2S Heater Low Control - Sensor 1 |
69 | TN/WH | 3121 | HO2S Heater Low Control - Sensor 2 |
70 | -- | -- | Not Used |
71 | PK/BK | 1746 | Fuel Injector 3 Control |
72 | TN | 1744 | Fuel Injector 1 Control |
73 | BK/WH | 451 | Ground |
Engine Control Module (ECM) C3
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1-6 | -- | -- | Not Used |
7 | OG | 225 | Generator Turn On Signal |
8-11 | -- | -- | Not Used |
12 | TN/BK | 464 | Delivered Torque Signal |
13-16 | -- | -- | Not Used |
17 | OG/BK | 463 | Requested Torque Signal |
18 | BN | 1174 | Oil Level Switch Signal |
19-20 | -- | -- | Not Used |
21 | BK/WH | 2751 | Low Reference |
22 | -- | -- | Not Used |
23 | OG/BK | 469 | Low Reference |
24-28 | -- | -- | Not Used |
29 | GY | 23 | Generator Field Duty Cycle Signal |
30-31 | -- | -- | Not Used |
32 | OG | 6392 | IMT Valve Control |
33 | TN | 2501 | High Speed GMLAN Serial Data Bus (-) |
34 | -- | -- | Not Used |
35 | TN | 2761 | Low Reference |
36 | -- | -- | Not Used |
37 | GY | 2700 | 5-Volt Reference |
38 | -- | -- | Not Used |
39 | GY | 2704 | 5-Volt Reference |
40-45 | -- | -- | Not Used |
46 | D-GN | 6307 | Park/Neutral Signal |
47 | -- | -- | Not Used |
48 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
49 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
50-52 | -- | -- | Not Used |
53 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus (+) |
54 | -- | -- | Not Used |
55 | YE | 410 | ECT Sensor Signal |
56 | -- | -- | Not Used |
57 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
58 | -- | -- | Not Used |
59 | L-GN | 432 | MAP Sensor Signal |
60-63 | -- | -- | Not Used |
64 | YE/BK | 6806 | IMT Valve Signal |
65 | -- | -- | Not Used |
66 | BN/WH | 6354 | Output Speed High (Replicated TOSS) Input Signal |
67-73 | -- | -- | Not Used |
