RP1226 14 Pin 14pin One Male to Dual Female Splitter Y Cable
RP1226 14 Pin 14pin One Male to Dual Female Splitter Y Cable
Specification
| RP1226 male connector | equivalent of Aptiv 54201416 |
| RP1226 female connector | equivalent of Aptiv 54201412 |
| OBD2 female connector | Standard |
| Wire | 20AWG, pure copper |
| Material of RP1226 male connector | PA66 + glass fiber |
| Material of OBD2 female connector | PA66 + glass fiber |
| Pinout (wiring diagram) | customized |
| Cable length | 33cm (13 inches) or customized |
| Pins or terminals | copper with nickel plating or gold plating |
| Contact Resistance | 3 ohm max. |
| Insulation Resistance | 5M ohm min. |
| Working Temperature | −30℃ ~ +100℃ |
| Testing | 100% open, short and miss-wire testing |
| Warranty | 1 year |
Pinout (wiring diagram)
Generally speaking, the pinout (wiring diagram) can be as below.
The cable arm between the RP1226 male connector and the RP1226 female connector are fully wired. There are 14 wires of 20AWG in this cable arm.
4 pins of the OBD2 female connector are wired. are fully wired. There are 4 wires of 20AWG in the cable arm between the RP1226 male connector and the OBD2 female connector.
| RP1226 male | RP1226 female | Signal | OBD2 female |
| 8 | 8 | Ground | 4 or 5 |
| 1 | 1 | Battery power | 16 |
| 2 | 2 | J1939, S-CAN high | 6 |
| 9 | 9 | J1939, S-CAN low | 14 |
| 3 | 3 | ||
| 4 | 4 | ||
| 5 | 5 | ||
| 6 | 6 | ||
| 7 | 7 | ||
| 10 | 10 | ||
| 11 | 11 | ||
| 12 | 12 | ||
| 13 | 13 | ||
| 14 | 14 |
Sometimes, the pinout (wiring diagram) can also be as below.
The cable arm between the RP1226 male connector and the RP1226 female connector are fully wired. There are 14 wires of 20AWG in this cable arm.
6 pins of the OBD2 female connector are wired. are fully wired. There are 6 wires of 20AWG in the cable arm between the RP1226 male connector and the OBD2 female connector.
| RP1226 male | RP1226 female | Signal | OBD2 female |
| 8 | 8 | Ground | 4 or 5 |
| 1 | 1 | Battery | 16 |
| 2 | 2 | J1939, S-CAN high | 6 |
| 9 | 9 | J1939, S-CAN low | 14 |
| 6 | 6 | J1708, CAN high | 12 |
| 13 | 13 | J1708, CAN low | 13 |
| 3 | 3 | ||
| 4 | 4 | ||
| 5 | 5 | ||
| 7 | 7 | ||
| 10 | 10 | ||
| 11 | 11 | ||
| 12 | 12 | ||
| 14 | 14 |
The pinout (wiring diagram) can also be customized according to customers' needs.
Application
According to TMC (the ATA's Technology and Maintenance Council) Recommended Practice RP1226 Messaging Standardization, some 2019 and newer heavy trucks such as Kenworth, Peterbilt, Volvo, Mack and Freightliner in North America are equipped with an Accessory Connector in the cab on the driver’s side behind dash, near the fuse panel. The truck owner can check the Body Builder Manual for more information.
ELD (Electronic Logging Devices), telematics devices or other aftermarket devices that require data from J1939, CAN or J1708 should be connected to this RP1226 Accessory Connector. Otherwise, the connections may not be warrantable.
If you have an device with an OBD2 16-pin port and you would like to connect it to a truck equipped with 14-pin RP1226 Accessory Connector, this cable is needed.
There is only one RP1226 Accessory Connector in the truck. If you would like to keep the RP1226 Accessory Connector available after the OBD2 device is connected, this splitter Y cable is a good choice.
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