2006 Pontiac Solstice AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Control Module (ECM) C1

Fig 1: ECM C1 Connector View
GM1590948Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) Connector End Views

Connector Part Information 
  • OEM: 12582680
  • Service: See Catalog
  • Description: 56-Way F (GY)
Terminal Part Information 
  • Pins:
  • Terminal: TBD
  • Core/Insulation Crimp: TBD
  • Release Tool/Test Probe: TBD
Engine Control Module (ECM) C1

Pin Wire Color Circuit No. Function
1-5 - - Not Used
6 BN/WH 379 Cruise Control Clutch Pedal Position Switch Signal (LE5 w/MA5)
7 L-BU 20 Stop Lamp Supply Voltage
8 - - Not Used
9 TN 2759 Fuel Tank Pressure Sensor Low Reference (LE5)
10-11 - - Not Used
12 BN/WH 419 Check Engine Indicator Control (LE5)
13 D-GN/WH 465 Fuel Pump Primary Relay Control (LE5)
14-17 - - Not Used
18 BN 4 Accessory Voltage (LE5)
19 PK 1039 Run/Crank Ignition 1 Voltage (LE5)
20 RD/WH 840 Battery Positive Voltage (LE5)
21-32 - - Not Used
33 WH/BK 1164 Accelerator Pedal Position 5-Volt Reference (1) (LE5)
34 GY 2709 Fuel Tank Pressure Sensor 5-Volt Reference (LE5)
35 TN 1274 Accelerator Pedal Position 5-Volt Reference (2) (LE5)
36 BN 1271 Accelerator Pedal Position Low Reference (1) (LE5)
37 PU 1272 Accelerator Pedal Position Low Reference (2) (LE5)
38-39 - - Not Used
40 BN 5069 Engine Main Relay Coil Control (LE5)
41-43 - - Not Used
44 PU 1589 Primary Fuel Level Sensor Signal (LE5)
45-46 - - Not Used
47 D-BU 1161 Accelerator Pedal Position Signal (1) (LE5)
48 D-GN 890 Fuel Tank Pressure Sensor Signal (LE5)
49 L-BU 1162 Accelerator Pedal Position Signal (2) (LE5)
50-52 - - Not Used
53 D-GN/WH 459 A/C Compressor Clutch Relay Control (C60 w/LE5)
54 D-BU 473 High Speed Cooling Fan Relay Control
55 WH 1310 EVAP Canister Vent Solenoid Control (LE5)
56 YE 447 Starter Relay Coil Control (LE5)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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