No CCD/J1850 Messages From TCM
1998-2003 Dodge Durango 4.7L V8
Description
The PCM is not receiving communication messages from the Transmission Control Module over the CCD or J1850 data bus. This loss of communication prevents the PCM and TCM from coordinating engine and transmission operation.
Symptoms
- Check Engine Light
- Transmission stuck in limp mode (2nd gear)
- Harsh or no shifting
- Speedometer may not work
- Cruise control inoperative
Common Causes
- Faulty TCM
- Data bus wiring open or shorted
- Corroded data bus connector
- TCM power or ground loss
- Faulty PCM data bus driver
Diagnostic Steps
- Check for TCM power and ground
- Inspect data bus wiring between PCM and TCM
- Test data bus communication with scan tool
- Check data bus termination resistance
- Scan TCM for stored codes if communication can be established
Repair Notes
Repair data bus wiring between the PCM and TCM; replace the TCM if it has lost power or failed internally.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1698 on Other Vehicles
Common Questions
What does code P1698 mean on a 1998-2003 Dodge Durango?
P1698 stands for "No CCD/J1850 Messages From TCM". The PCM is not receiving communication messages from the Transmission Control Module over the CCD or J1850 data bus. This loss of communication prevents the PCM and TCM from coordinating engine and transmission operation.
What are the symptoms of P1698 on a Dodge Durango?
Common symptoms of P1698 include: Check Engine Light, Transmission stuck in limp mode (2nd gear), Harsh or no shifting, Speedometer may not work, Cruise control inoperative.
What causes P1698 on a 1998-2003 Dodge Durango?
Common causes of P1698 include: Faulty TCM, Data bus wiring open or shorted, Corroded data bus connector, TCM power or ground loss, Faulty PCM data bus driver.