SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2700 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - 5 OF 5)STABILITY CONTROL MODULE X3 (JL7)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Stability Control Module X3 (JL7)

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Stability Control Module X3 (JL7)
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Stability Control Module X3 (JL7) Connector End View
GM1590596Courtesy of GENERAL MOTORS CORP.
Stability Control Module X3 (JL7)

Pin Wire Circuit Function
1-32 - - Not Used
33 0.35 TN 2501 High Speed GMLAN Serial Data -
34-46 - - Not Used
47 0.35 L-GN/WH 6432 CAN Bus Low Serial Data
48-50 - - Not Used
51 0.35 L-GN/WH 6432 CAN Bus Low Serial Data
52 0.35 L-GN/WH 6432 CAN Bus Low Serial Data
53 0.35 TN/BK 2500 High Speed GMLAN Serial Data +
54-69 - - Not Used
70 0.35 TN/WH 6433 CAN Bus High Serial Data
71 0.35 TN/WH 6433 CAN Bus High Serial Data
72 0.35 TN/WH 6433 CAN Bus High Serial Data
73 1 BK 850 Ground
Connector Part Information 
  • OEM: 34566-0203
  • Service: See Catalog
  • Description: 73-Way F MX123 34566 Series (BK)
Terminal Part Information 
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See 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.