GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Automatic Transmission - Allison®LCT


Object Number: 826824  Size: LF
(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)
Figure 2:

Instrument Panel


Object Number: 1699704  Size: LF
(1)Trailer Park Brake Control (JE4)
(2)Park Brake Control (JE4)
(3)Gage Center
(4)Inflatable Restraint I/P Module (AK5)
(5)Auxiliary Power Outlets
(6)Air Brake Pressure Gage (JE4)
(7)Transfer Case Shift Control Switch (NP1)
(8)Traction Control Switch (NW9)
(9)Outside Heated Mirror Switch (DB6/DB8)
(10)Exhaust Brake Switch (K40)
(11)Rear Axle Driver Control Switch - Two Speed (HPZ/Automatic Transmission)
(12)Inflatable Restraint I/P Module Disable Switch (AK5 w/o AQR)
(13)Differential Lock Switch (HNB/HPL/HPN) or Inter-Axle Differential Lock Switch (Tandem Axle)
(14)Switch
(15)Air Suspension Dump Switch (G40/G45/GSJ)
(16)Diesel Particulate Filter (DPF) (Diesel Only)
(17)Marker Lamp Switch (RQ2 and U86 or RQ3)
(18)High Idle Switch (UF3)/Power Take-Off (PTO) Switch
(19)Air Cleaner Restriction Gage (UPM)
(20)Automatic Transmission Fluid Temperature (TFT) Gage (Allison® LCT/UXT)
(21)I/P Switchbank
(22)HVAC Control Assembly (C40/C60)
(23)Driver Information Center (DIC)
(24)Radio (w/o UL5)
(25)Inflatable Restraint Steering Wheel Module (AJ3/AK5)
(26)Headlamp Switch
(27)Turn Signal/Multifunction Switch
(28)Instrument Panel Cluster (IPC)
Figure 3:

Automatic Transmission Fluid Temperature (TFT) Sensor


Object Number: 826870  Size: LF
(1)Automatic Transmission Fluid Temperature (TFT) Sensor Connector
(2)Automatic Transmission Fluid Temperature (TFT) Sensor (Allison® LCT/UTX)
Figure 4:

Engine Compartment, Right Rear


Object Number: 1422659  Size: LF
(1)Engine Control Module (ECM)
(2)Transmission Control Module (TCM)