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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2357 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - M THROUGH R)COMPONENT CONNECTOR END VIEWS - M THROUGH RPOWER STEERING CONTROL MODULE (PSCM) X3 (JL7)
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Power Steering Control Module (PSCM) X3 (JL7)

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Power Steering Control Module (PSCM) X3 (JL7)
WARNING: This page is about a different car, the 2010 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power Steering Control Module (PSCM) X3 (JL7)
GM1664488Courtesy of GENERAL MOTORS CORP.
Power Steering Control Module (PSCM) X3 (JL7)

Pin Wire Circuit Function
1 0.35 PK 1339 Ignition 1 Voltage
2 - - Not Used
3 0.35 BK/WH 351 Ground
4 - - Not Used
5 0.35 TN/WH 6433 CAN Bus High Serial Data
6 0.35 L-GN/BK 6432 CAN Bus Low Serial Data
7 0.35 TN/BK 2500 High Speed GMLAN Serial Data +
8 0.35 TN 2501 High Speed GMLAN Serial Data -
9 - - Not Used
10 0.35 YE 5727 High Speed GMLAN Serial Data Wakeup
11-12 - - Not Used
13 0.35 TN/WH 6433 CAN Bus High Serial Data
14 0.35 L-GN/BK 6432 CAN Bus Low Serial Data
15 0.35 TN/BK 2500 High Speed GMLAN Serial Data +
16 0.35 TN 2501 High Speed GMLAN Serial Data -
Connector Part Information 
  • Harness: Instrument Panel
  • OEM: 7283-9078-80
  • Service: 15136074
  • Description: 16-Way F Kaizen 64 Series (BN)
Terminal Part Information 
  • Terminal/Tray: SAIT-A03T-M064/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

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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.