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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 403 (Automatic Transmission - ALLISON (Introduction, Service & Replacement)) >> Component Locator >> Automatic Transmission Electronic Component Views
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Automatic Transmission Electronic Component Views

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Transmission Control Module (M74)
GM769662Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Transmission Control Module Connectors
2 Transmission Control Module
3 Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel)
Fig 2: Engine Harness to Transmission-Allison
GM1458146Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Automatic Transmission Input Shaft Speed (ISS) Sensor
2 Turbine Sensor Harness Connector
3 Power Take-Off (PTO) Connector
4 Output Speed Sensor Harness Connector
5 Transfer Case Selector Shift Control Switch
6 Transmission Connector Harness
7 Park/Neutral Position (PNP) Switch
8 Allison Transmission
9 Engine Harness
Fig 3: Tow/Haul Switch Location
GM1327928Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Tow/Haul Switch
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