GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2001
🢒
GMC C Sierra - 2WD
🢒
HVAC
🢒
HVAC Systems - Manual
🢒 Automatic Transmission Electronic Component Views
Figure
1:
LF Radiator Support (w/Allision Transmission)
(1)
Transmission Control Module Connectors
(2)
Transmission Control Module
(3)
Powertrain Control Module (PCM)
Figure
2:
Automatic Transmission (Allison)
(1)
Automatic Transmission Turbine Speed Sensor Connector
(2)
Power Take-Off (PTO) Connector
(3)
Output Speed Sensor Connector
(4)
Transfer Case Selector Shift Control Switch
(5)
C175
(6)
Park/Neutral Position (PNP) Switch Connectors
(7)
Allison Transmission
(8)
Engine Harness
(9)
Automatic Transmission Input Shaft Speed (AT ISS) Sensor Connector
Figure
1:
Transmission Control Module (M74)
(1)
Transmission Control Module Connectors
(2)
Transmission Control Module
(3)
Powertrain Control Module (PCM) (Gas) / Engine Control Module (ECM) (Diesel)
Figure
2:
Engine Harness to Transmission-Allison
(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