Ford Explorer
P0138
The P0138 code indicates a high voltage signal from the oxygen sensor located in Bank 1, Sensor 2 of a Ford Explorer Fifth Generation (2011-2019). This issue typically suggests a problem with the oxygen sensor or its circuit.
2 SolutionsP-CodePowertrain
P
Error Code Type
Powertrain
Components
2 affected
Exhaust SystemOxygen Sensor Circuit
Symptoms
10 common
- •Check engine light illuminated
- •Poor fuel economy
- •Rough engine idle
- +7 more
Most Affected Generations
2 generations
U502
1
U625
1
Top Affected Components
2 components
Exhaust System
1
Oxygen Sensor Circuit
1
Severity Levels
1 level
medium
2
Quick Facts
2
Total Solutions
2
Affected Components
10
Common Symptoms
2
Generations
All Solutions
Showing 2 of 2 solutions for error code P0138 across all generations.