GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
1999
🢒
Catera
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L30-E
🢒 Automatic Transmission Controls Schematics
Figure
1:
Cell 39: Power and A/T Control Indicator
Automatic Transmission Components
Electronic Component Description
Cell 39: Automatic Transmission Range Switch
Power Distribution Schematics
Ground Distribution Schematics
Cell 117 Instrument Cluster, Heater and A/C Control, and Cigarette Lighter
Cell 10 Power Distribution Fuse Block
Cell 39: Automatic Transmission Range Switch
Cell 39: Adapter Case, Winter and Sport Mode Switches
Cell 39: Automatic Transmission Range Switch
Cell 39: Automatic Transmission Range Switch
OBD II Symbol Description Notice
Figure
2:
Cell 39: Automatic Transmission Range Switch
Automatic Transmission Components
Electronic Component Description
Cell 39: 1st Design Sport Mode Indicator, DLC and CAN Interface
Cell 39: Power and A/T Control Indicator
Cell 39: Power and A/T Control Indicator
Cell 39: Power and A/T Control Indicator
Cell 39: Power and A/T Control Indicator
Cell 39: Power and A/T Control Indicator
OBD II Symbol Description Notice
Figure
3:
Cell 39: 1st Design Sport Mode Indicator, DLC and CAN Interface
Automatic Transmission Components
Electronic Component Description
Cell 50 Sun Roof Actuator, TCM, ECM, and Instrument Cluster
Cell 81: Instrument Cluster Cruise, Airbag, MIL and A/T Malfunction Indicators
Cell 39: 2nd Design Sport Mode Indicator, DLC and CAN Interface
Cell 39: Automatic Transmission Range Switch
OBD II Symbol Description Notice
Figure
4:
Cell 39: 2nd Design Sport Mode Indicator, DLC and CAN Interface
Automatic Transmission Components
Electronic Component Description
Cell 39: 1st Design Sport Mode Indicator, DLC and CAN Interface
Cell 39: Automatic Transmission Range Switch
Cell 81: Instrument Cluster Cruise, Airbag, MIL and A/T Malfunction Indicators
Cell 50 Sun Roof Actuator, TCM, ECM, and Instrument Cluster
OBD II Symbol Description Notice
Figure
5:
Cell 39: Main Case, VSS and TCM Ground
Automatic Transmission Components
Electronic Component Description
Cell 39: Adapter Case, Winter and Sport Mode Switches
Cell 39: 2nd Design Sport Mode Indicator, DLC and CAN Interface
OBD II Symbol Description Notice
Cell 39: Adapter Case, Winter and Sport Mode Switches
Cell 14 Transmission Control Module, Multifunction Relay, and WSW Motor
Figure
6:
Cell 39: Adapter Case, Winter and Sport Mode Switches
Automatic Transmission Components
Electronic Component Description
Cell 39: Main Case, VSS and TCM Ground
OBD II Symbol Description Notice
Cell 39: Main Case, VSS and TCM Ground
Cell 39: Power and A/T Control Indicator
Cell 14 Heater Relays, Theft Deterrent Module, and Heater Switches