Engine Error
P0319
Rough Road Sensor B Signal Circuit
Severity
Low
Symptoms
PCM fails to suspend misfire monitoring on bumpy roads, false codes
Common Causes
- Defective rough road sensor B
- Open circuit in sensor B wiring
- Water intrusion in connector
- ABS/EBCM fault
How to Fix
- 1 Test and replace sensor B
- 2 Repair wiring harness
- 3 Dry connector and apply dielectric grease
- 4 Scan ABS module for faults
Estimated Repair Cost
USD
$80
–
$250
Sensor replacement: 100 - 250