Data Link Communications Operation P42
Voltage is applied at all times to the Data Link Connector (DLC) through the ENG-BAT fuse to terminal 16 of the DLC. The following components provide ground:
| • | Terminal 4 to ground G200 |
| • | Terminal 5 to ground G108 |
Establishing communication allows the system operations to monitor for diagnostic purposes. Terminal 2, CKT 1807 (PPL), allows communication with Serial Data Class 2 information from the Electronic Brake Control Module (EBCM), the Vehicle Control Module (VCM) for gasoline engines and the Powertrain Control Module (PCM) for electronic diesel engines. Diagnostic data can be accessed for the Transmission Control Module (TCM) for mechanical diesel engines with automatic transmissions through terminal 6, CKT 448 (WHT/BLK), and terminal 9, CKT 800 (TAN) and for the EBCM, for all engines, through terminal 12, CKT 799.
Data Link Communications Operation P32
Voltage is applied at all times to the Data Link Connector (DLC) through the ENG-BAT fuse to terminal 16 of the DLC. The following components provide ground:
| • | Terminal 4 to ground G200 |
| • | Terminal 5 to ground G108 |
Establishing communication allows the system operations to monitor for diagnostic purposes. Terminal 2, CKT 1807 (PPL), allows communication with Serial Data Class 2 information from the Electronic Brake Control Module (EBCM) for all engines, the Vehicle Control Module (VCM) for gasoline engines, and the Powertrain Control Module (PCM) for diesel engines. Diagnostic data can be accessed for the EBCM, for all engines, through terminal 12, CKT 799.
