| Connector 1: | Engine Control Module (ECM) C1 |
| Connector 2: | Engine Control Module (ECM) C2 |
Engine Control Module (ECM) C1
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1 | OG/BK | 1786 | Park/Neutral Signal |
2-8 | -- | -- | Not Available |
9 | WH | 17 | Stop Lamp Supply Voltage |
10 | PU | 3120 | HO2S High Signal (Bank 1 Sensor 2) |
11 | TN/WH | 3121 | HO2S Low Signal (Bank 1 Sensor 2) |
12 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
13 | TN | 5514 | Low Reference |
14-15 | -- | -- | Not Available |
16 | PU | 1589 | Fuel Level Sensor Signal |
17 | D-BU | 473 | High Speed Cooling Fan Relay Control |
18 | BN | 4 | Accessory Voltage |
19 | PK | 639 | Ignition 1 Voltage |
20 | RD/WH | 540 | Battery Positive Voltage |
21-22 | -- | -- | Not Available |
23 | PU | 1272 | Low Reference |
24 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
25-26 | -- | -- | Not Available |
27 | TN | 2501 | High Speed GMLAN Serial Data Bus + |
28 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus - |
29 | D-BU | 1161 | APP Sensor 1 Signal |
30 | BN | 1271 | Low Reference |
31 | OG/BK | 1057 | Low Reference |
32 | L-BU | 1162 | APP Sensor 2 Signal |
33 | GY | 705 | 5-Volt Reference 1 |
34 | GY | 2700 | 5-Volt Reference 1 |
35 | -- | -- | Not Available |
36 | TN | 1274 | 5-Volt Reference 1 |
37 | TN | 472 | IAT Sensor Signal |
38 | TN/BK | 2760 | Low Reference |
39-40 | -- | -- | Not Available |
41 | YE | 492 | MAF Sensor Signal |
42-44 | -- | -- | Not Available |
45 | YE/BK | 6806 | IMT Valve Signal |
46 | -- | -- | Not Available |
47 | PK/BK | 5290 | Ignition 1 Voltage |
48 | BN | 818 | Engine Speed Signal |
49 | TN | 3221 | HO2S Low Signal (Bank 2 Sensor 2) |
50 | D-GN/WH | 465 | Fuel Pump Relay Control |
51 | -- | -- | Not Available |
52 | PU/WH | 6386 | Starter Relay Coil Control |
53-55 | -- | -- | Not Available |
56 | WH/BK | 1164 | 5-Volt Reference 2 |
57 | -- | -- | Not Available |
58 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
59 | BN | 5069 | Powertrain Relay Control |
60 | TN | 2759 | Low Reference |
61 | WH | 1310 | EVAP Canister Vent Solenoid Control |
62 | OG | 6392 | IMT Valve Control |
63 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
64 | OG/WH | 3223 | HO2S Heater Low Control (Bank 2 Sensor 2) |
65 | GY/WH | 3122 | HO2S Heater Low Control (Bank 1 Sensor 2) |
66-67 | -- | -- | Not Available |
68 | BN/WH | 419 | MIL Control |
69 | PU | 3220 | HO2S High Signal (Bank 2 Sensor 2) |
70-72 | -- | -- | Not Used |
73 | BK/WH | 451 | Ground |
Engine Control Module (ECM) C2
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1 | -- | -- | Not Used |
2 | L-GN | 1867 | 5-Volt Reference 2 |
3 | GY | 2701 | 5-Volt Reference 2 |
4 | -- | -- | Not Used |
5 | BN | 582 | TAC Motor Control - 2 |
6 | YE | 581 | TAC Motor Control - 1 |
7 | -- | -- | Not Used |
8 | D-GN/WH | 482 | EVAP Canister Purge Solenoid Control |
9-11 | -- | -- | Not Used |
12 | GY/WH | 3113 | HO2S Heater Low Control (Bank 1 Sensor 1) |
13 | L-GN | 3212 | HO2S Heater Low Control (Bank 2 Sensor 1) |
14-15 | -- | -- | Not Used |
16 | BN | 2198 | Camshaft Position Actuator Solenoid High Control |
17 | L-GN/BK | 1745 | Fuel Injector 2 Control |
18 | YE/BK | 846 | Fuel Injector 6 Control |
19 | TN/WH | 845 | Fuel Injector 5 Control |
20 | TN | 1744 | Fuel Injector 1 Control |
21 | YE | 410 | ECT Sensor Signal |
22 | TN | 2761 | Low Reference |
23 | -- | -- | Not Used |
24 | OG/BK | 1175 | Low Reference |
25 | -- | -- | Not Used |
26 | D-BU | 496 | KS 1 Signal |
27 | GY | 1716 | KS 1 Signal |
28 | -- | -- | Not Used |
29 | L-BU | 1876 | KS 2 Signal |
30 | GY | 2303 | KS 2 Signal |
31 | -- | -- | Not Used |
32 | GY | 23 | Generator Field Duty Cycle Signal |
33 | BN | 1174 | Oil Level Switch Signal |
34 | BK | 2755 | Low Reference |
35 | TN | 2752 | Low Reference |
36 | -- | -- | Not Used |
37 | L-BU/BK | 844 | Fuel Injector 4 Control |
38-39 | -- | -- | Not Used |
40 | PK/BK | 1746 | Fuel Injector 3 Control |
41 | GY | 2705 | 5-Volt Reference 1 |
42 | -- | -- | Not Used |
43 | GY | 2704 | 5-Volt Reference 1 |
44 | OG/WH | 812 | 5-Volt Reference 1 |
45-49 | -- | -- | Not Used |
50 | TN/WH | 331 | Oil Pressure Sensor Signal |
51 | -- | -- | Not Used |
52 | TN | 2199 | Low Reference |
53-55 | -- | -- | Not Used |
56 | TN/WH | 3111 | HO2S Low Signal (Bank 1 Sensor 1) |
57 | PU/WH | 3110 | HO2S High Signal (Bank 1 Sensor 1) |
58 | L-GN | 432 | MAP Sensor Signal |
59 | PU/WH | 3210 | HO2S Reference Voltage (Bank 2 Sensor 1) |
60 | TN/WH | 3211 | HO2S Low Reference (Bank 2 Sensor 1) |
61 | OG | 225 | Generator Turn On Signal |
62 | -- | -- | Not Used |
63 | PU | 486 | TP Sensor 2 Signal |
64 | BN/WH | 633 | CMP Sensor Signal |
65 | D-GN | 485 | TP Sensor 1 Signal |
66-67 | -- | -- | Not Used |
68 | L-BU/BK | 647 | Medium Resolution Engine Speed Signal |
69 | PU | 574 | Low Reference |
70 | PU | 2121 | IC 1 Control |
71 | PU | 2122 | IC 2 Control |
72 | PU | 2123 | IC 3 Control |
73-77 | -- | -- | Not Used |
78 | YE | 2174 | Low Reference |
79-80 | -- | -- | Not Used |
