Automatic Transmission Electronic Component Views

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded Views Of Electronic Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
36	Vehicle Speed Sensor (VSS)
66	Torque Converter Clutch (TCC) Solenoid Valve
69	Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
250	Input Speed Sensor (ISS) Assembly
367a	1-2 Shift Solenoid (SS) Valve
367b	2-3 Shift Solenoid (SS) Valve
377	Pressure Control (PC) Solenoid Valve
394	3-2 Shift Solenoid (SS) Valve Assembly
396	Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve

Fig 2: Identifying Park Neutral Position (PNP) Switch

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Automatic Transmission 4L60-E/4L65-E/4L70-E
2	Park/Neutral Position (PNP) Switch

Fig 3: Identifying Connector C175

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Automatic Transmission
2	C175

Fig 4: Identifying Vehicle Speed Sensor (VSS)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	VSS Sensor
2	Transfer Case

Fig 5: Identifying Transmission Control Module (TCM)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transmission Control Module (TCM)