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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 687 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - I THROUGH L)COMPONENT CONNECTOR END VIEWS - I THROUGH LINSTRUMENT PANEL MODULE (IPM) X3
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Instrument Panel Module (IPM) X3

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Instrument Panel Module (IPM) X3
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: Instrument Panel Module (IPM) X3
GM1468163Courtesy of GENERAL MOTORS CORP.
Instrument Panel Module (IPM) X3

Pin Wire Circuit Function
1 0.35 RD/WH 1140 Battery Positive Voltage
2 0.35 RD/WH 3340 Battery Positive Voltage
3 0.35 BK/WH 151 Signal Ground
4 0.35 TN 2501 High Speed GMLAN Serial Data (-) (1)
5 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
6 0.35 D-GN 44 Instrument Panel Lamp Dimmer Switch Signal
7 0.35 PK 5076 Current Sensor Supply Voltage
8 0.35 WH 5075 Current Sensor Signal
9 0.35 BN 5077 Low Reference
10 0.35 BK/WH 451 Signal Ground
11 0.35 L-BU 187 Rear Fog Lamp Switch Signal (T4F with T94 or TB8)
12 0.35 OG 192 Front Fog Lamp Switch Signal
13 0.35 L-BU/WH 1414 Left Front Turn Signal Switch Signal
14 0.35 TN/WH 99 Windshield Washer Fluid Level Sensor Signal
15 0.35 TN 2501 High Speed GMLAN Serial Data (-) (1)
16 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+) (1)
17 0.35 BN 5360 Low Reference
18 0.35 D-BU 1796 Steering Column Radio Control Signal
19 0.35 L-BU/BK 1688 5-Volt Reference
20 0.35 GY 1884 Cruise Control Set/Coast/Resume/Accelerate Switch Signal
21 0.35 D-GN 5060 Low Speed GMLAN Serial Data
22 0.35 D-GN 5060 Low Speed GMLAN Serial Data
23 - - Not Used
24 0.35 L-BU 1485 Flash To Pass Switch Supply Voltage
25 0.35 D-BU/WH 1415 Right Front Turn Signal Switch Signal
26 0.35 BN/WH 1571 Traction Control Switch Signal (2)
27 0.35 WH 5359 Brake Apply Sensor Supply Voltage
28 0.35 YE 5361 Brake Apply Sensor Signal
29 0.35 L-GN/WH 5723 Ignition Mode Switch Mode Voltage
30 - - Not Used
Connector Part Information 
  • Harness: Instrument Panel
  • OEM: 1318758-1
  • Service: 88988291
  • Description: 30-Way F 025/090 Series (WH)
Terminal Part Information 
  • Pins: 1, 10
  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)
  • Pins: 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29
  • Terminal/Tray: 1123343-2/7
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: J-38125-24/J-35616-64B (L-BU)
RENDER: 1.0x

NO RELATED

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