GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 HHR 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T45-E 🢒 Automatic Transmission Electronic Component Views
Figure 1:

Electronic Components
Object Number: 849832 Size: LF
(13)TFP Manual Valve Position Switch Assembly
(46)Input Speed Sensor
(62)Output Speed Sensor
(305)1-2 and 2-3 Shift Solenoid Valves
(305)1-2 and 2-3 Shift Solenoid Valves
(312)Pressure Control Solenoid
(335)TCC Control PWM Solenoid
Figure 2:

Transmission Control Module (TCM)
Object Number: 1748304 Size: MF
(1)Transmission Control Module (TCM)