U0418moderate severityNetwork
Invalid Data Received from Parking Brake Control Module
on 1997 Jeep Wrangler 4.0L I6 · 4WD
What this code means
Data from the electronic parking brake module is invalid or out of range.
Symptoms
- Parking brake warning light
- EPB status unknown
- Hill hold not working
- Service parking brake message
Common causes
- EPB module calibration lost
- CAN bus noise
- Module partial failure
- EPB sensor fault
Diagnostic steps
- Check EPB module for codes
- Test EPB actuator position sensors
- Check CAN bus signal quality
- Recalibrate EPB module
Repair notes
Recalibrate electronic parking brake. Check actuator position sensors.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus