| 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 | D-BU | 1161 | APP Sensor 1 Signal |
2 | -- | -- | Not Used |
3 | BN | 4 | Accessory Voltage |
4 | PU | 420 | TCC Brake Switch/Cruise Control Release Signal |
5 | D-GN | 335 | Low Speed Cooling Fan Relay Control |
6 | L-GN/WH | 465 | Fuel Pump Relay Control (- Primary) |
7-12 | -- | -- | Not Used |
13 | BN | 5069 | Powertrain Relay Control |
14-17 | -- | -- | Not Used |
18 | L-BU | 1162 | APP Sensor 2 Signal |
19 | PK/BK | 1039 | Ignition 1 Voltage |
20 | RD/WH | 840 | Battery Positive Voltage |
21 | PU | 1272 | Low Reference |
22-23 | -- | -- | Not Used |
24 | TN | 2759 | Low Reference |
25 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal |
26 | -- | -- | Not Used |
27 | BN/WH | 419 | MIL Control |
28-29 | -- | -- | Not Used |
30 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control |
31 | YE | 447 | Starter Relay Coil Control |
32-33 | -- | -- | Not Used |
34 | PU/WH | 6356 | VSS Signal Low |
35 | -- | -- | Not Used |
36 | BN/WH | 379 | Cruise Control Clutch Pedal Position Switch Signal (M86) |
37 | YE | 492 | Mass Air Flow Sensor Signal |
38 | -- | -- | Not Used |
39 | PU | 1589 | Fuel Level Sensor Signal (+ Primary) |
40 | -- | -- | Not Used |
41 | BN | 1271 | Low Reference |
42 | D-GN | 890 | Fuel Tank Pressure Sensor Signal |
43 | TN/BK | 2500 | High Speed GMLAN Serial Data (+) (1) |
44 | TN | 2501 | High Speed GMLAN Serial Data (-) (1) |
45-46 | -- | -- | Not Used |
47 | WH/BK | 1164 | 5-Volt Reference |
48-53 | -- | -- | Not Used |
54 | BN/WH | 6354 | VSS Signal High |
55 | L-BU | 20 | Stop Lamp Supply Voltage |
56 | D-GN | 1433 | PNP/Clutch Start Switch Signal (M86) |
57 | -- | -- | Not Used |
58 | TN | 472 | Intake Air Temperature Sensor Signal |
59-65 | -- | -- | Not Used |
66 | GY | 2709 | 5-Volt Reference |
67 | TN | 1274 | 5-Volt Reference |
68-69 | -- | -- | Not Used |
70 | WH | 1310 | EVAP Canister Vent Solenoid Control |
71-72 | -- | -- | Not Used |
73 | PK/BK | 5290 | Ignition 1 Voltage |
Engine Control Module (ECM) C2
Connector Part Information
|
Terminal Part Information
|
Pin | Wire Color | Circuit No. | Function |
|---|---|---|---|
1-3 | -- | -- | Not Used |
4 | TN | 2761 | Low Reference |
5 | PU | 574 | Low Reference |
6 | TN | 1744 | Fuel Injector (1) Control |
7 | PK/BK | 1746 | Fuel Injector (3) Control |
8 | L-BU/BK | 844 | Fuel Injector (4) Control |
9 | BN | 2129 | Low Reference |
10 | L-GN/BK | 1745 | Fuel Injector (2) Control |
11-12 | -- | -- | Not Used |
13 | GY/BK | 2704 | 5-Volt Reference |
14-15 | -- | -- | Not Used |
16 | YE | 581 | TAC Motor Control (1) |
17-19 | -- | -- | Not Used |
20 | TN | 5301 | Low Reference |
21 | -- | -- | Not Used |
22 | PU | 2121 | Ignition Control (1) |
23 | L-BU | 2123 | Ignition Control (3) |
24 | D-GN/WH | 2124 | Ignition Control (4) |
25 | -- | -- | Not Used |
26 | OG/WH | 2122 | Ignition Control (2) |
27-29 | -- | -- | Not Used |
30 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control |
31 | OG | 225 | Generator Turn On Signal |
32 | BN | 582 | TAC Motor Control (2) |
33 | D-BU | 5300 | 5-Volt Reference |
34 | -- | -- | Not Used |
35 | GY | 6255 | 5-Volt Reference |
36 | -- | -- | Not Used |
37 | PU/WH | 3110 | Heated Oxygen Sensor High Signal Sensor 1 |
38 | PU/WH | 1668 | Heated Oxygen Sensor High Signal Sensor 2 |
39 | L-GN | 432 | Manifold Absolute Pressure Sensor Signal |
40 | TN | 2752 | Low Reference |
41 | PU/WH | 6256 | Low Reference |
42 | TN | 2760 | Low Reference |
43 | GY/WH | 23 | Generator Field Duty Cycle Signal |
44 | -- | -- | Not Used |
45 | YE | 573 | Crankshaft Position Sensor Signal |
46 | OG | 5275 | CMP Sensor Signal |
47 | -- | -- | Not Used |
48 | TN/WH | 3111 | Heated Oxygen Sensor Low Signal Sensor 1 |
49 | OG/BK | 469 | Low Reference |
50 | GY | 1716 | Knock Sensor Signal |
51 | D-BU | 496 | Knock Sensor Signal |
52 | -- | -- | Not Used |
53 | GY | 2701 | 5-Volt Reference |
54 | L-GN | 2867 | 5-Volt Reference |
55-56 | -- | -- | Not Used |
57 | D-GN | 485 | Throttle Position Sensor (1) Signal |
58 | YE | 410 | Engine Coolant Temperature Sensor Signal |
59 | PU | 486 | Throttle Position Sensor (2) Signal |
60-64 | -- | -- | Not Used |
65 | GY/WH | 3113 | Heated Oxygen Sensor Heater Low Control Sensor 1 |
66 | GY/WH | 1423 | Heated Oxygen Sensor Heater Low Control Sensor 2 |
67 | TN/BK | 231 | Oil Pressure Switch Signal |
68 | TN/WH | 1669 | Heated Oxygen Sensor Low Signal Sensor 2 |
69-72 | -- | -- | Not Used |
73 | BK/WH | 451 | Signal Ground |
