SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC2009CANYON 4D PICKUP, 2.9 9REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS)COMPONENT CONNECTOR END VIEWSENGINE CONTROL MODULE (ECM) X1
2009 GMC Canyon 4D Pickup, 2.9 9

Engine Control Module (ECM) X1

2009 GMC Canyon 4D Pickup, 2.9 9SECTION Engine Control Module (ECM) X1
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Engine Control Module (ECM) X1 Connector End View
GM1590948Courtesy of GENERAL MOTORS CORP.
Engine Control Module (ECM) X1

Pin Wire Circuit Function
1 - - Not Used
2 0.35 PU 420 Cruise Control Release Signal (K34)
3 - - Not Used
4 0.35 D-GN/WH 1559 4WD Low Signal (4WD)
5-6 - - Not Used
7 0.8 L-BU 20 Stop Lamp Control
8 - - Not Used
9 0.35 BK 2759 Low Reference
10-11 - - Not Used
12 0.35 BN/WH 419 MIL Control
13 0.35 D-GN/WH 465 Fuel Pump Relay Control
14 - - Not Used
15 0.35 PU 1807 Class 2 Serial Data
16 0.35 PU 1807 Class 2 Serial Data
17 - - Not Used
18 0.5 BN 4 Ignition Voltage
19 0.35 PK 639 Ignition Voltage
20 0.35 OG 440 Battery Positive Voltage
21 0.35 YE/BK 1827 Vehicle Speed Signal
22-25 - - Not Used
26 0.35 YE/BK 625 Starter Enable Relay Control
27-28 - - Not Used
29 0.35 GY 1884 Cruise Control Switch Signal (K34)
30-32 - - Not Used
33 0.35 WH/BK 1164 5-Volt Reference
34 0.35 GY 2709 5-Volt Reference
35 0.35 TN 1274 5-Volt Reference
36 0.35 BN 1271 Low Reference
37 0.35 PU 1272 Low Reference
38-39 - - Not Used
40 0.35 YE 5991 Powertrain Relay Control
41-43 - - Not Used
44 0.35 PU 1589 Fuel Level Sensor Signal
45-46 - - Not Used
47 0.35 D-BU 1161 APP Sensor 1 Signal
48 0.35 D-GN 890 Fuel Tank Pressure Sensor Signal
49 0.35 L-BU 1162 APP Sensor 2 Signal
50 - - Not Used
51 0.35 PU 421 AIR Solenoid Relay Control (K18)
52 - - Not Used
53 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control
54 - - Not Used
55 0.5 WH 1310 EVAP Canister Vent Solenoid Control
56-73 - - Not Used
Connector Part Information 
  • OEM: 13599443
  • Service: See Catalog
  • Description: 56-Way F MX123 Series, Sealed (BU)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: Terminal Repair Kit
  • Release Tool/Test Probe: Terminal Repair Kit
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.