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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 210 (ENGINE CONTROL SYSTEM - 3.9L - INTRODUCTION (2 OF 2))COMPONENT LOCATORENGINE CONTROL MODULE (ECM) CONNECTORSENGINE CONTROL MODULE (ECM) C1
2006 Buick Terraza CXL, 3.5 L, AWD

Engine Control Module (ECM) C1

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Engine Control Module (ECM) C1
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Connector End Views
GM1673474Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) Connector End Views

Connector Part Information 
  • OEM: 15492335
  • Service: See Catalog
  • Description: 56-Way F (BK w/BU Center)
Terminal Part Information 
  • Pins: 7, 20
  • Terminal/Tray: 33467-0005/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
  • Pins: 9, 12, 13, 18, 19, 26, 31, 32, 33, 34, 35, 36, 37, 40, 44, 46, 47, 48, 49, 53, 54, 55
  • Terminal/Tray: 33467-0003/23
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: J-38125-213/J-35616-64A (L-BU)
Engine Control Module (ECM) C1

Pin Wire Color Circuit No. Function
1-6 - - Not Used
7 WH 17 Stop Lamp Switch Signal
8 - - Not Used
9 TN 2759 Low Reference
10-11 - - Not Used
12 BN/WH 419 MIL Control
13 D-GN/WH 465 Fuel Pump Relay Control [- Primary]
14-17 - - Not Used
18 D-BU 5985 Accessory Wake Up Serial Data
19 PK 439 Ignition 1 Voltage
20 RD/WH 540 Battery Positive Voltage
21-25 - - Not Used
26 YE 447 Starter Relay Coil Control
27-32 - - Not Used
33 WH/BK 1164 5-Volt Reference
34 GY 2709 5-Volt Reference
35 TN 1274 5-Volt Reference
36 BN 1271 Low Reference
37 PU 1272 Low Reference
38-39 - - Not Used
40 BN 5069 Main Relay Control
41-43 - - Not Used
44 PU 30 Fuel Level Sensor Signal
45-46 - - Not Used
47 D-BU 1161 APP Sensor 1 Signal
48 D-GN 890 Fuel Tank Pressure Sensor Signal
49 L-BU 1162 APP Sensor 2 Signal
50-52 - - Not Used
53 D-GN/WH 459 A/C Compressor Clutch Relay Control
54 D-BU 473 High Speed Cooling Fan Relay Control
55 WH 1310 EVAP Canister Vent Solenoid Control
56 - - Not Used
RENDER: 1.0x

NO RELATED

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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.