Automatic Transmission Electronic Component Views. GMC Truck TopKick C-Series (Conventional) C4/C5 2004

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 Automatic Transmission Electronic Component Views

Figure 1:


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

Figure 2:


(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:


(1)	Automatic Transmission Input Shaft Speed (AT ISS) Sensor
(2)	Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector
(3)	Turbine Shaft Speed Sensor (TSS)
(4)	Turbine Shaft Speed Sensor (TSS) Connector
(5)	Vehicle Speed Sensor (VSS)
(6)	Vehicle Speed Sensor (VSS) Connector
(7)	Automatic Transmission (Allison®LCT)
(8)	Park Neutral Position Switch (PNP)

Figure 2:


(1)	Instrument Panel Cluster (IPC)
(2)	Radio
(3)	HVAC Control Assembly
(4)	Overdrive Defeat Switch (Allison® LCT)
(5)	Headlamp Switch

Figure 3:


(1)	Automatic Transmission Fluid Temperature (TFT) Sensor Connector
(2)	Automatic Transmission Fluid Temperature (TFT) Sensor (Allison® LCT/UTX)

Figure 4:


(1)	Engine Harness
(2)	Engine Control Module (ECM)
(3)	Engine Control Module (ECM) Connectors
(4)	Transmission Control Module (TCM) Connectors
(5)	Transmission Control Module (TCM)

Figure 5:


(1)	Engine Control Module (ECM)
(2)	Transmission Control Module (TCM)