Difference between revisions of "Data Link Connector"
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|Fused B(+) | |Fused B(+) | ||
| | | | ||
| + | |} | ||
| + | |||
| + | === Adapter pinouts === | ||
| + | |||
| + | ==== OBD2 8-pin adapter ==== | ||
| + | [[File:OBD2 plug with 8 pins to solder on.png|none|thumb|OBD to 8-pin adapter]] | ||
| + | Can be bought on Ali Express | ||
| + | {| class="wikitable" | ||
| + | |+ | ||
| + | !Pin | ||
| + | !OBD-2 pin | ||
| + | !Name | ||
| + | |- | ||
| + | |1 (square) | ||
| + | |10 | ||
| + | |J1850 Bus - | ||
| + | |- | ||
| + | |2 | ||
| + | |2 | ||
| + | |J1850 Bus + | ||
| + | |- | ||
| + | |3 | ||
| + | |7 | ||
| + | |ISO 9141-2 K-Line | ||
| + | |- | ||
| + | |4 | ||
| + | |15 | ||
| + | |ISO 9141-2 L-Line | ||
| + | |- | ||
| + | |5 | ||
| + | |16 | ||
| + | |Battery Power | ||
| + | |- | ||
| + | |6 | ||
| + | |4 + 5 | ||
| + | |Chassis and Signal Ground | ||
| + | |- | ||
| + | |7 | ||
| + | |14 | ||
| + | |CAN (J-2234) Low | ||
| + | |- | ||
| + | |8 | ||
| + | |6 | ||
| + | |CAN (J-2234) High | ||
|} | |} | ||
Revision as of 10:30, 21 January 2024
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 | OBD2 Name | 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 | J1850 Bus + | - | - | - |
| 3 | 20DG/YL | "SCI Receive" | "SCI Receive" from Powertrain Control Module (PCM / ECU / ECM) | |
| 4 | Chassis Ground | 18BR | "Ground" | - |
| 5 | Signal Ground | 20BR/YL | "Sensor Ground" | "Sensor Ground" from Fuel Tank Pressure Sensor
"Sensor Ground" from Powertrain Control Module |
| 6 | CAN (J-2234) High | - | - | - |
| 7 | ISO 9141-2 K-Line | 22BL | "SCI Transmit" | "SCI Transmit" from Powertrain Control Module (PCM / ECU / ECM) |
| 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 | J1850 Bus - | - | - | - |
| 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 | CAN (J-2234) Low | - | - | - |
| 15 | ISO 9141-2 L-Line | 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 | Battery Power | 18RD/DG | Fused B(+) |
Adapter pinouts
OBD2 8-pin adapter
Can be bought on Ali Express
| Pin | OBD-2 pin | Name |
|---|---|---|
| 1 (square) | 10 | J1850 Bus - |
| 2 | 2 | J1850 Bus + |
| 3 | 7 | ISO 9141-2 K-Line |
| 4 | 15 | ISO 9141-2 L-Line |
| 5 | 16 | Battery Power |
| 6 | 4 + 5 | Chassis and Signal Ground |
| 7 | 14 | CAN (J-2234) Low |
| 8 | 6 | CAN (J-2234) High |