GM Service Manual Online
For 1990-2009 cars only

Automatic Transmission Electronic Component Views External

Lower Front of Engine


Object Number: 478821  Size: LF
(1)Crankshaft Position (CKP) Sensor (24X) Connector
(2)Knock Sensor (KS)
(3)Engine Oil Pressure Indicator Switch
(4)Starter Motor/Starter Solenoid
(5)Ground G117
(6)In-Line Connector C111, Engine Harness to Automatic Transaxle Harness
(7)Transaxle Range Switch Connector C2
(8)Transaxle Range Switch Connector C1
(9)Grounds G111 and G113
(10)Fusible Link A and Link Z
(11)Battery Cable
(12)Engine Harness Connector to A/C Compressor Clutch Coil

Internal Electronic Component Locations


Object Number: 330222  Size: LF
(10)Vehicle Speed Sensor (VSS) Assembly
(315a)1-2, 3-4 Shift Solenoid (SS) Valve Assembly
(315b)2-3 Shift Solenoid (SS) Valve Assembly
(322)Pressure Control (PC) Solenoid Valve Assembly
(334)Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly
(391)Transmission Fluid Temperature (TFT) Sensor
(395)Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly
(440)Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly
(811)Lever Assembly-Manual Shaft Detent with Shift Position Switch [Internal Mode Switch (IMS)] (Some Models)

Automatic Transmission Electronic Component Views Internal

Electronic Components


Object Number: 53828  Size: LF
(10)Vehicle Speed Sensor (VSS) Assembly
(315a)1-2, 3-4 Shift Solenoid (SS) Valve Assembly
(315b)2-3 Shift Solenoid (SS) Valve Assembly
(322)Pressure Control (PC) Solenoid Valve Assembly
(334)Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly
(391)Transmission Fluid Temperature (TFT) Sensor
(395)Transmission Fluid Pressure (TFP) Manual Valve Position Switch Assembly
(440)Automatic Transmission Input Shaft Speed (A/T ISS) Sensor Assembly