| Table 1: | Engine Control Module (ECM) - C1 |
| Table 2: | Engine Control Module (ECM) - C2 |
| Table 3: | Engine Control Module (ECM) - C3 |
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|---|---|---|---|---|---|---|---|---|---|
Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||||
1 | TN/BK | 2500 | High Speed GMLAN Serial Data Bus (+) | ||||||
2 | TN | 2501 | High Speed GMLAN Serial Data Bus (-) | ||||||
3-4 | -- | -- | Not Used | ||||||
5 | TN | 1274 | 5-Volt Reference | ||||||
6 | -- | -- | Not Used | ||||||
7 | WH/BK | 1164 | 5-Volt Reference | ||||||
8-9 | -- | -- | Not Used | ||||||
10 | WH | 1310 | EVAP Canister Vent Solenoid Control | ||||||
11 | OG/BK | 380 | A/C Refrigerant Pressure Sensor Signal | ||||||
12 | -- | -- | Not Used | ||||||
13 | WH | 17 | Stop Lamp Switch Signal | ||||||
14 | YE/BK | 625 | Starter Enable Relay Control | ||||||
15-16 | -- | -- | Not Used | ||||||
17 | PK | 439 | Ignition 1 Voltage | ||||||
18 | PK | 1439 | Ignition 1 Voltage | ||||||
19 | PK | 1439 | Ignition 1 Voltage | ||||||
20 | RD/WH | 2440 | Battery Positive Voltage | ||||||
21 | L-BU | 1162 | APP Sensor 2 Signal | ||||||
22 | -- | -- | Not Used | ||||||
23 | D-GN/WH | 465 | Fuel Pump Relay Control | ||||||
24 | BN/WH | 419 | MIL Control | ||||||
25 | D-GN/WH | 459 | A/C Compressor Clutch Relay Control | ||||||
26 | WH | 121 | Engine Speed Signal | ||||||
27 | D-BU | 1161 | APP Sensor 1 Signal | ||||||
28 | D-GN/WH | 817 | Vehicle Speed Signal | ||||||
29 | YE | 492 | MAF Sensor Signal | ||||||
30 | -- | -- | Not Used | ||||||
31 | TN | 2760 | Low Reference | ||||||
32 | BK/WH | 2751 | Low Reference | ||||||
33 | OG/BK | 812 | 12-Volt Reference | ||||||
34 | -- | -- | Not Used | ||||||
35 | GY | 2700 | 5-Volt Reference | ||||||
36 | BN | 1271 | Low Reference | ||||||
37 | PU | 1272 | Low Reference | ||||||
38-42 | -- | -- | Not Used | ||||||
43 | WH/BK | 448 | Powertrain Diagnostic Enable | ||||||
44-45 | -- | -- | Not Used | ||||||
46 | YE | 43 | Accessory Voltage | ||||||
47 | -- | -- | Not Used | ||||||
48 | BN | 5546 | Fuel Pump Speed Control Feedback Signal | ||||||
49-50 | -- | -- | Not Used | ||||||
51 | TN/BK | 472 | IAT Sensor Signal | ||||||
52-54 | -- | -- | Not Used | ||||||
55 | D-GN | 335 | Low Speed Cooling Fan Relay Control | ||||||
56 | -- | -- | Not Used | ||||||
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|---|---|---|---|---|---|---|---|---|---|
Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||||
1-2 | -- | -- | Not Used | ||||||
3 | D-GN | 485 | TP Sensor 1 Signal | ||||||
4 | PU | 486 | TP Sensor 2 Signal | ||||||
5-7 | -- | -- | Not Used | ||||||
8 | L-GN | 432 | MAP Sensor Signal | ||||||
9 | -- | -- | Not Used | ||||||
10 | YE | 573 | CKP Sensor 1 Signal | ||||||
11 | L-BU | 1876 | Knock Sensor 2 Signal | ||||||
12 | GY | 23 | Generator Field Duty Cycle Signal | ||||||
13 | GY | 1716 | Low Reference | ||||||
14 | L-GN | 5282 | CMP Actuator Solenoid Control Bank 1 Exhaust | ||||||
15-16 | -- | -- | Not Used | ||||||
17 | TN | 1744 | Fuel Injector 1 Control | ||||||
18 | L-GN/BK | 1745 | Fuel Injector 2 Control | ||||||
19 | D-BU | 496 | Knock Sensor 1 Signal | ||||||
20 | PK/BK | 1746 | Fuel Injector 3 Control | ||||||
21 | OG/BK | 877 | Fuel Injector 7 Control | ||||||
22 | TN/WH | 845 | Fuel Injector 5 Control | ||||||
23 | YE/BK | 846 | Fuel Injector 6 Control | ||||||
24 | D-BU/WH | 878 | Fuel Injector 8 Control | ||||||
25 | D-GN | 5273 | CMP Sensor Signal Bank 1 Exhaust | ||||||
26 | -- | -- | Not Used | ||||||
27 | BN/WH | 5303 | Low Reference | ||||||
28 | GY | 2303 | Low Reference | ||||||
29 | PU | 5284 | CMP Actuator Solenoid Control Bank 1 Intake | ||||||
30 | L-BU/BK | 844 | Fuel Injector 4 Control | ||||||
31 | OG/BK | 5272 | CMP Actuator Solenoid Control Bank 2 Intake | ||||||
32 | OG | 5275 | CMP Sensor Signal Bank 1 Intake | ||||||
33 | D-BU | 5300 | 12-Volt Reference | ||||||
34 | WH/BK | 5283 | CMP Actuator Solenoid Control Bank 2 Exhaust | ||||||
35 | TN | 5301 | Low Reference | ||||||
36 | OG/BK | 469 | Low Reference | ||||||
37 | TN | 2752 | Low Reference | ||||||
38 | TN | 2761 | Low Reference | ||||||
39 | BN/WH | 2130 | Low Reference | ||||||
40 | L-BU | 5302 | 12-Volt Reference | ||||||
41 | PU | 574 | Low Reference | ||||||
42 | BN | 2129 | Low Reference | ||||||
43 | PU | 5274 | CMP Sensor Signal Bank 2 Exhaust | ||||||
44 | BN | 582 | TAC Motor Control - 2 | ||||||
45 | GY | 5296 | Low Reference | ||||||
46 | L-GN | 5298 | 12-Volt Reference | ||||||
47 | BN | 5299 | Low Reference | ||||||
48 | YE | 581 | TAC Motor Control - 1 | ||||||
49 | YE | 5276 | CMP Sensor Signal Bank 2 Intake | ||||||
50 | L-GN | 1867 | 12-Volt Reference | ||||||
51 | GY | 2701 | 5-Volt Reference | ||||||
52-53 | -- | -- | Not Used | ||||||
54 | YE | 410 | ECT Sensor Signal | ||||||
55 | D-GN/WH | 428 | EVAP Canister Purge Solenoid Control | ||||||
56-57 | -- | -- | Not Used | ||||||
58 | PU | 2121 | IC 1 Control | ||||||
59 | OG/WH | 2122 | IC 2 Control | ||||||
60 | OG | 2127 | IC 7 Control | ||||||
61 | L-BU | 2123 | IC 3 Control | ||||||
62 | D-GN/WH | 2124 | IC 4 Control | ||||||
63 | PU/WH | 2128 | IC 8 Control | ||||||
64 | D-GN | 2125 | IC 5 Control | ||||||
65 | GY | 2704 | 5-Volt Reference | ||||||
66-67 | -- | -- | Not Used | ||||||
68 | OG | 225 | Generator Turn On Signal | ||||||
69 | L-BU/WH | 2126 | IC 6 Control | ||||||
70 | -- | -- | Not Used | ||||||
71 | YE/BK | 5297 | 12-Volt Reference | ||||||
72 | -- | -- | Not Used | ||||||
73 | BK/WH | 451 | Ground | ||||||
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|---|---|---|---|---|---|---|---|---|---|
Connector Part Information |
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Pin | Wire Color | Circuit No. | Function | ||||||
1 | PU | 3110 | HO2S Reference Voltage Bank 1 Sensor 1 | ||||||
2 | TN/WH | 3111 | HO2S Low Reference Bank 1 Sensor 1 | ||||||
3 | PU/WH | 5281 | HO2S Output Pump Current Bank 1 Sensor 1 | ||||||
4-11 | -- | -- | Not Used | ||||||
12 | D-BU | 1936 | Fuel Level Sensor Signal - Primary | ||||||
13 | GY/WH | 3122 | HO2S Heater Low Control Bank 1 Sensor 2 | ||||||
14-15 | -- | -- | Not Used | ||||||
16 | OG/BK | 3223 | HO2S Heater Low Control Bank 2 Sensor 2 | ||||||
17 | -- | -- | Not Used | ||||||
18 | OG/BK | 1786 | Park/Neutral Signal | ||||||
19 | TN/WH | 3121 | HO2S Low Signal Bank 1 Sensor 2 | ||||||
20 | PU | 3220 | HO2S High Signal Bank 2 Sensor 2 | ||||||
21 | TN | 3221 | HO2S Low Signal Bank 2 Sensor 2 | ||||||
22 | OG | 5280 | HO2S Input Pump Current Bank 1 Sensor 1 | ||||||
23 | BN | 1174 | Oil Level Switch Signal | ||||||
24 | L-BU | 1937 | Fuel Level Sensor Signal - Secondary | ||||||
25 | TN/WH | 331 | Oil Pressure Sensor Signal | ||||||
26-36 | -- | -- | Not Used | ||||||
37 | TN | 808 | Low Reference | ||||||
38 | BK | 2755 | Low Reference | ||||||
39 | -- | -- | Not Used | ||||||
40 | GY/WH | 3113 | HO2S Heater Low Control Bank 1 Sensor 1 | ||||||
41 | L-GN | 3212 | HO2S Heater Low Control Bank 2 Sensor 1 | ||||||
42 | GY | 2709 | 5-Volt Reference | ||||||
43 | PU | 3120 | HO2S High Signal Bank 1 Sensor 2 | ||||||
44 | D-GN | 890 | Fuel Tank Pressure Sensor Signal | ||||||
45 | PU/WH | 3210 | HO2S Reference Voltage Bank 2 Sensor 1 | ||||||
46 | TN/WH | 3211 | HO2S Low Reference Bank 2 Sensor 1 | ||||||
47 | -- | -- | Not Used | ||||||
48 | WH | 5279 | HO2S Output Pump Current Bank 2 Sensor 1 | ||||||
49 | L-GN | 5278 | HO2S Input Pump Current Bank 2 Sensor 1 | ||||||
50 | -- | -- | Not Used | ||||||
51 | GY | 2705 | 5-Volt Reference | ||||||
52-56 | -- | -- | Not Used | ||||||
