| 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
|
Pin | Wire | Circuit | Function |
|---|---|---|---|
1-6 | -- | -- | Not Used |
7 | WH | 17 | Brake Pedal Feed |
8 | -- | -- | Not Used |
9 | BK | 452 | Low Reference |
10-11 | -- | -- | Not Used |
12 | BN/WH | 419 | Malfunction Indicator Lamp |
13 | D-GN/WH | 465 | Fuel Pump Relay |
14-17 | -- | -- | Not Used |
18 | YE/BK | 5278 | ECM/TCM Serial Data Wake-Up |
19 | PK | 239 | Ignition Voltage |
20 | RD/WH | 1440 | Battery Positive Voltage |
21-32 | -- | -- | Not Used |
33 | WH/BK | 1164 | 5-Volt Feed |
34 | GY | 596 | 5-Volt Feed |
35 | TN | 1274 | 5-Volt Feed |
36 | BN | 1271 | Low Reference |
37 | PU | 1272 | Low Reference |
38 | -- | -- | Not Used |
39 | BN | 818 | Vehicle Speed Signal |
40 | BN | 5069 | Engine Relay |
41-43 | -- | -- | Not Used |
44 | D-BU | 1936 | Fuel Tank Oil Level Sensor 1 |
45 | L-BU | 1937 | Fuel Tank Oil Level Sensor 2 |
46 | -- | -- | Not Used |
47 | D-BU | 1161 | APP Sensor 1 |
48 | D-GN | 890 | Fuel Tank Pressure Signal |
49 | L-BU | 1162 | APP Sensor 2 |
50-52 | -- | -- | Not Used |
53 | D-GN/WH | 459 | A/C Clutch Control |
54 | D-BU | 473 | Fan Control 2 |
55 | WH | 1310 | Fuel Tank Emission |
56 | YE | 447 | Active Control |
Engine Control Module (ECM) C2
Connector Part Information
|
Pin | Wire | Circuit | Function |
|---|---|---|---|
1 | PU | 2121 | Ignition Coil 1 |
2 | TN/WH | 3111 | Oxygen Sensor A Low |
3 | PU/WH | 3110 | Oxygen Sensor A High |
4 | PU | 3120 | Oxygen Sensor C High |
5 | TN | 3121 | Oxygen Sensor C Low |
6 | L-BU | 1876 | Knock Sensor Bank 2 |
7 | GY | 2303 | KS Low Reference Bank 2 |
8 | D-BU | 496 | Knock Sensor Bank 1 |
9 | GY | 1716 | KS Low Reference Bank 1 |
10 | -- | -- | Not Used |
11 | YE | 581 | Throttle Motor Positive Rotate |
12 | BN | 582 | Throttle Motor Negative Rotate |
13 | PK/BK | 5290 | Engine Relay Control |
14 | PK/BK | 6395 | Camshaft Phasing Control 2 |
15 | TN/BK | 6397 | Camshaft Phasing Control 4 |
16 | D-BU/WH | 878 | Fuel Injector 8 Control |
17 | OG/WH | 2122 | Ignition Coil 2 |
18 | L-BU/WH | 2126 | Ignition Coil 6 |
19 | BN/WH | 2130 | Low Reference 2 |
20 | PU | 6267 | Low Reference |
21 | TN | 6268 | Low Reference |
22 | WH | 6269 | Low Reference |
23 | BN | 6266 | Low Reference |
24 | BK | 2755 | Low Reference |
25-26 | -- | -- | Not Used |
27 | GY/BK | 6272 | Low Reference |
28 | PK/BK | 5290 | Engine Relay Control |
29 | TN | 2752 | Low Reference |
30 | BN/WH | 6754 | Camshaft Position Phasing Control 3 Low Reference |
31 | BU/WH | 6756 | Camshaft Phasing Control 1 Low Reference |
32 | L-BU/BK | 1746 | Fuel Injector 3 Control |
33 | OG | 2127 | Ignition Coil 7 |
34 | D-GN | 2125 | Ignition Coil 5 |
35 | BN | 2129 | Low Reference (1) |
36 | D-GN | 6457 | 5-Volt Feed |
37 | OG | 6260 | 5-Volt Feed |
38 | PK | 6261 | 5-Volt Feed |
39 | D-BU | 6259 | 5-Volt Feed |
40 | GY | 2705 | 5-Volt Feed |
41 | -- | -- | Not Used |
42 | BK | 2760 | Low Reference |
43 | PU/WH | 6270 | 5-Volt Feed |
44 | GY | 2701 | Feed |
45 | -- | -- | Not Used |
46 | BN | 6753 | Camshaft Position Phasing Control 2 Low Reference |
47 | D-BU | 6755 | Camshaft Position Phasing Control 4 Low Reference |
48 | L-BN/BK | 1745 | Fuel injector 2 Control |
49 | TN/WH | 845 | Fuel injector 5 Control |
50 | WH/BK | 6396 | Camshaft Position Phasing Control 3 |
51 | GY/BK | 6394 | Camshaft Position Phasing Control 1 |
52 | L-BU/BK | 844 | Fuel Injector 4 Control |
53 | L-BU | 2123 | Ignition Coil 3 |
54 | D-GN/WH | 2124 | Ignition Coil 4 |
55 | PU/WH | 2128 | Ignition Coil 8 |
56 | D-GN/WH | 6264 | Camshaft Position Sensor X |
57 | OG/BK | 6263 | Camshaft Position Sensor Y |
58 | PK/BK | 6262 | Camshaft Position Sensor Z |
59 | D-BU/WH | 6265 | Camshaft Position Sensor W |
60 | TN/WH | 331 | Engine Oil Pressure Signal |
61 | -- | -- | Not Used |
62 | TN | 472 | IAT Signal |
63 | WH/BK | 6271 | Crankshaft Position Sensor |
64 | D-GN | 485 | Throttle Position Sensor |
65 | -- | -- | Not Used |
66 | PU | 486 | TP Sensor 2 |
67 | YE | 492 | Air Quality Signal |
68 | GY/WH | 3113 | Oxygen Sensor A Heat |
69 | BK/WH | 3122 | Oxygen Sensor C Heat |
70 | YE/BK | 846 | Fuel Injector 6 Control |
71 | OG/BK | 877 | Fuel Injector 7 Control |
72 | TN | 1744 | Fuel Injector 1 Control |
73 | BK/WH | 1551 | Ground |
Engine Control Module (ECM) C3
Connector Part Information
|
Pin | Wire | Circuit | Function |
|---|---|---|---|
1-2 | -- | -- | Not Used |
3 | TN/WH | 3211 | Oxygen Sensor B Low |
4 | PU/WH | 3210 | Oxygen Sensor B High |
5 | PU | 3220 | Oxygen Sensor D High |
6 | TN | 3221 | Oxygen Sensor D High |
7 | OG | 225 | Alternator Output-Regulator Reference Voltage |
8-14 | -- | -- | Not Used |
15 | L-GN | 3212 | Oxygen Sensor B Heat |
16-20 | -- | -- | Not Used |
21 | BK/WH | 452 | Low Reference |
22 | -- | -- | Not Used |
23 | OG/BK | 469 | Low Reference |
24-28 | -- | -- | Not Used |
29 | GY | 23 | Alternator Field Duty Cycle Signal |
30-32 | -- | -- | Not Used |
33 | TN | 2501 | Low Speed GMLAN Serial Data (1) (T43) |
34 | -- | -- | Not Used |
35 | TN | 2761 | Low Reference |
36 | -- | -- | Not Used |
37 | GY | 596 | Feed |
38 | -- | -- | Not Used |
39 | GY | 2704 | Feed |
40-45 | -- | -- | Not Used |
46 | OG/BK | 1786 | Clutch Activate |
47 | -- | -- | Not Used |
48 | D-GN/WH | 428 | Evaporative Emission Canister Purge Solenoid Valve |
49 | D-GN | 335 | Fan Control (1) |
50 | OG/WH | 3223 | Oxygen Sensor D Heat |
51-52 | -- | -- | Not Used |
53 | TN/BK | 2500 | High Speed GMLAN Serial Data (1) (T43) |
54 | -- | -- | Not Used |
55 | YE | 410 | ECT Signal |
56 | -- | -- | Not Used |
57 | OG/BK | 380 | A/C Pressure Sensor |
58 | -- | -- | Not Used |
59 | L-GN | 432 | Intake Manifold Pressure Sensor |
60-72 | -- | -- | Not Used |
73 | BK/WH | 1551 | Ground |
