Automatic Transmission Electronic Component Views. GMC Truck GMC C Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Automatic Transmission Electronic Component Views

Figure 1:

Transmission Control Module (M74)


(1)	Transmission Control Module Connectors
(2)	Transmission Control Module
(3)	Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel)

Figure 2:

Engine Harness to Transmission-Allison


(1)	Turbine Sensor Harness Connector
(2)	Power Take-Off (PTO) Connector
(3)	Output Speed Sensor Harness Connector
(4)	Transfer Case Selector Shift Control Switch
(5)	Transmission Connector Harness
(6)	Park/Neutral Position (PNP) Switch Connectors
(7)	Allison Transmission
(8)	Engine Harness
(9)	Automatic Transmission Input Shaft Speed (ISS) Sensor

Figure 1:

Transmission Control Module (M74)


(1)	Transmission Control Module Connectors
(2)	Transmission Control Module
(3)	Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel)

Figure 2:

Engine Harness to Transmission-Allison


(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

Figure 3:

Tow/Haul Switch Location


(1)	Tow/Haul Switch