| 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 | -- | -- | Not Used |
2 | PU | 420 | TCC Switch/Cruise Control Release Signal |
3-5 | -- | -- | Not Used |
6 | BN/WH | 379 | CPP Switch Signal |
7 | L-BU | 20 | Stop Lamp Supply Voltage |
8 | -- | -- | Not Used |
9 | BK | 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 | PU | 1807 | Class 2 Serial Data |
16 | PU | 1807 | Class 2 Serial Data |
17 | -- | -- | Not Used |
18 | BN | 4 | Accessory Voltage |
19 | YE | 1139 | Ignition 1 Voltage |
20 | OG | 480 | Battery Positive Voltage |
21-28 | -- | -- | Not Used |
29 | GY | 1884 | Cruise Control Set/Coast and Resume/Accelerate Signal |
30-32 | -- | -- | Not Used |
33 | WH/BK | 1164 | 5-Volt Reference |
34 | GY | 705 | 5-Volt Reference |
35 | PU | 1272 | 5-Volt Reference |
36 | BN | 1271 | Low Reference |
37 | TN | 1274 | Low Reference |
38-39 | -- | -- | Not Used |
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 | -- | -- | Not Used |
51 | PU | 421 | Air Solenoid Control (NU6) |
52 | -- | -- | Not Used |
53 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control (C60) |
54 | D-BU | 473 | High Speed Cooling Fan Relay Control |
55 | WH | 1310 | EVAP Canister Vent Solenoid Control |
56 | YE | 447 | Starter Relay Coil 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/WH | 1668 | HO2S High Signal (Sensor 2) |
5 | TN/WH | 1669 | HO2S Low Signal (Sensor 2) |
6-7 | -- | -- | Not Used |
8 | D-BU | 496 | Knock Sensor Signal |
9 | GY | 1716 | Knock Sensor Signal |
10 | -- | -- | Not Used |
11 | YE | 581 | TAC Motor Control 1 |
12 | BN | 582 | TAC Motor Control 2 |
13 | PK/BK | 5290 | Ignition 1 Voltage |
14-16 | -- | -- | Not Used |
17 | L-BU | 2123 | IC 3 Control |
18-22 | -- | -- | Not Used |
23 | TN | 5301 | Low Reference |
24-26 | -- | -- | Not Used |
27 | PU | 574 | Low Reference |
28 | -- | -- | Not Used |
29 | BK | 2752 | Low Reference |
30-31 | -- | -- | Not Used |
32 | L-GN/BK | 1745 | Fuel Injector 2 Control |
33 | D-GN/WH | 2124 | IC 4 Control |
34 | -- | -- | Not Used |
35 | BN | 2129 | Low Reference |
36-38 | -- | -- | Not Used |
39 | D-BU | 5300 | 5-Volt Reference |
40-41 | -- | -- | Not Used |
42 | BK | 2760 | Low Reference |
43 | L-GN | 2867 | 5-Volt Reference |
44 | GY | 2701 | 5-Volt Reference |
45-47 | -- | -- | Not Used |
48 | PK/BK | 1746 | Fuel Injector 3 Control |
49-52 | -- | -- | Not Used |
53 | RD/WH | 2122 | IC 2 Control |
54-58 | -- | -- | Not Used |
59 | OG | 5275 | CMP Sensor Signal |
60-61 | -- | -- | Not Used |
62 | TN | 472 | IAT Sensor Signal |
63 | YE | 573 | 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 | BK/WH | 3113 | HO2S Heater Low Control (Sensor 1) |
69 | BK/WH | 3122 | HO2S Heater Low Control (Sensor 2) |
70 | -- | -- | Not Used |
71 | L-BU/BK | 844 | Fuel Injector 4 Control |
72 | BK | 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 | RD | 225 | Generator Turn On Signal |
8 | -- | -- | Not Used |
9 | BN | 436 | Air Pump Relay Control (NU6) |
10-20 | -- | -- | Not Used |
21 | BK | 2751 | Low Reference |
22 | -- | -- | Not Used |
23 | OG/BK | 469 | Low Reference |
24-25 | -- | -- | Not Used |
26 | BK | 407 | Low Reference (NU6) |
27-28 | -- | -- | Not Used |
29 | GY | 23 | Generator Field Duty Cycle Signal |
30-32 | -- | -- | Not Used |
33 | TN | 2501 | High Speed GMLAN Serial Data Bus - |
34 | -- | -- | Not Used |
35 | BK | 2761 | Low Reference |
36 | -- | -- | Not Used |
37 | GY | 2700 | 5-Volt Reference (C60) |
38 | -- | -- | Not Used |
39 | GY | 2704 | 5-Volt Reference |
40-41 | -- | -- | Not Used |
42 | GY | 474 | 5-Volt Reference 2 (NU6) |
43-46 | -- | -- | Not Used |
47 | D-GN | 1433 | PNP/Clutch Start Switch Signal |
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/WH | 2500 | High Speed GMLAN Serial Data Bus + |
54 | -- | -- | Not Used |
55 | YE | 410 | ECT Sensor Signal |
56 | -- | -- | Not Used |
57 | RD/BK | 380 | A/C Refrigerant Pressure Sensor Signal (C60) |
58 | -- | -- | Not Used |
59 | L-GN | 432 | MAP Sensor Signal |
60-61 | -- | -- | Not Used |
62 | WT | 5268 | Air Pressure Sensor Signal (NU6) |
63-64 | -- | -- | Not Used |
65 | TN/BK | 231 | Oil Pressure Sensor Signal |
66 | YE | 400 | VSS Signal High (M86) |
67 | PU | 401 | VSS Signal Low (M86) |
68-73 | -- | -- | Not Used |
