Operation CHARM: Car repair manuals for everyone.
Home >> Mazda >> 1994 >> MX-3 V6-1844cc 1.8L DOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Data Link Connector >> Description and Operation
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Data Link Connector: Description and Operation

PURPOSE
The data link connector (DLC) provides a means of interfacing with several vehicle systems for trouble shooting purposes and/or facilitating certain system adjustments.


Special Service Tools (SST):





OPERATION
The DLC facilitates the following functions through a combination of terminal connections and/or the use of special service tools (SST).
- FEN terminal: self test output (for SST buzzer)
- TEN terminal: self test input (self-diagnosis)
- F/P terminal: fuel pump test terminal
- MEN terminal: self test output (for SST lamp, oxygen sensor and switch function monitor)
- IG terminal: tachometer signal
- +B terminal: supplies battery power (for SSTs)
- GND terminal: supplies ground (for circuit jumpers and SSTs)


View: Data Link Connector:




View: Data Link Connector:





CONSTRUCTION
The DLC is a concentrated group of 25 pin terminals that stem from various systems.
pro multis · About Operation CHARM