Difference between revisions of "Data Link Connector"

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The Data Link Connector is the connector that you use to read the Diagnostic Trouble Codes (DTCs) from the car, using a tester such as Bosch ESI[tronic], Mercedes Benz StarDiag, or DRB III. Its plug is the same as an OBD2 connector.
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The Data Link Connector is the connector that you use to read the Diagnostic Trouble Codes (DTCs) from the car, using a tester such as Bosch ESI[tronic], Mercedes Benz StarDiag, or DRB III. Its plug is the same as an OBD2 / J1962 connector.
  
 
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Revision as of 10:57, 30 August 2021

The Data Link Connector is the connector that you use to read the Diagnostic Trouble Codes (DTCs) from the car, using a tester such as Bosch ESI[tronic], Mercedes Benz StarDiag, or DRB III. Its plug is the same as an OBD2 / J1962 connector.


Pinout

Below is the pinout of the Data Link Connector. The naming is taken from the Service Manual (SRT6).

OBD2 Pin Circuit Connector Pin Name Attached Module
1 20BK/WT "SCI Transmit" "SCI Transmit" from Body Control Module (BCM)

"SCI Transmit" from Sentry Key Remote Entry Module (SKREEM)

2 - - -
3 20DG/YL "SCI Receive" "SCI Receive" from Powertrain Control Module (PCM / ECU / ECM)
4 18BR "Ground" -
5 20BR/YL "Sensor Ground" "Sensor Ground" from Fuel Tank Pressure Sensor

"Sensor Ground" from Powertrain Control Module

6 - - -
7 22BL "SCI Transmit" "SCI Transmit" from Powertrain Control Module
8 20RD/WT "Fused Ignition Switch Output" "Fused Ignition Switch Output" from Relay Control Module
9 22RD/YL "SCI Transmit" "SCI Transmit" from Controller Antilock Brake (ESP / BAS)

"SCI Transmit" from Shift Lever Assembly (SLA)

10 - - -
11 22DG "SCI Transmit" "SCI Transmit" from Transmission Control Module (TCM / TCU)
12 20BK/YL (ZH27) "SCI Transmit" "SCI Transmit" from Power Top Control Module (PTCM)
13 20YL "SCI Transmit" "SCI Transmit" from Occupant Restraint Controller (ORC)
14 - - -
15 22BK/BL "SCI Transmit" "SCI Transmit" from Instrument Cluster (IC)

"SCI Transmit" from Universal Garage Door Opener / Tire Pressure Monitor

"SCI Transmit" from A/C Heater Control Module

16 18RD/DG Fused B(+)