Felkodsregister · high
P1799
CAN TCM / ABS (DSCCM) network malfunction
CAN TCM / ABS (DSCCM) network malfunction
Documented for: 2.0L gasoline; 2.5L/3.0L gasoline · System(s): TRANS EOBD, TRANS OBD II · Factory MIL flag: 2
Common causes
- CAN open circuit fault – TCM to ABS (DSCCM) CAN short circuit fault ABSCM (DSCCM) failure TCM failure
- CAN open circuit fault – TCM to ABS/TC (DSCCM) CAN short circuit fault ABS/TC (DSCCM) failure TCM failure
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code
- Generic OBD often cannot read ABS — may need SDD/JLR tool for full module codes
- Check module power/grounds and bus wiring before condemning a module