Jeep Wagoneer (incl. Grand) Fault Codes
You can find common Jeep Wagoneer (incl. Grand) fault codes on this page that when clicked take you to a detailed description.
You can also type in the fault code you are getting below to find a more detailed description.
Jump To:
Search Jeep Wagoneer (incl. Grand) Codes
Jeep Wagoneer (incl. Grand) Recall Notices
Common Jeep Wagoneer (incl. Grand) Codes
Search Jeep Wagoneer (incl. Grand) Codes
Do you know the fault code already? Enter it in the box below and hit "Search Codes".
Jeep Wagoneer (incl. Grand) Recalls
When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.
You can check to see if your Jeep Wagoneer (incl. Grand) has any recall notices on our sister site AutoRecalls.co, sorted by model year.
View Jeep Wagoneer (incl. Grand) Recalls ยป
Common Wagoneer (incl. Grand) Fault Codes
These are the most common Wagoneer (incl. Grand) fault codes that people are searching for.
4/10
P0128
Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)
Learn More Fixes
8/10
P0106
Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem
Learn More Fixes
- Manufacturer: Jeep
About the Wagoneer (incl. Grand)
The Wagoneer has had quite a confusing history since its release. The nameplate first emerged in 1963 as its first generation.
It remained on the market until its discontinuation in 1991. It was then reused with the release of the Grand Wagoneer in 1993 for only a single year, essentially representing the third generation of the model.
The model was retired thereafter until its reintroduction for the modern versions of both the Wagoneer and Grand Wagoneer in 2022.
Competition for the latest model has included the likes of the Mercedes-Benz GLS, Lincoln Navigator, and Cadillac Escalade.
One of the most common issues that the latest version has faced is P0123. This code indicates that the throttle pedal position sensor is suffering from a high input voltage.
This code is typically the result of an electrical issue in the TPS sensor circuit. This can include open or short circuits. It is also possible that the TPS sensor is faulty and needs to be replaced.
Another position sensor fault code that is fairly common is P0340. This code indicates that the camshaft position sensor is malfunctioning. This code should never be ignored as it can hide some serious camshaft timing issues.
Similar to the previous code, this can typically be caused by a faulty camshaft position sensor or electrical faults in its circuit.
Fault code P0171 is another problem that owners have had to deal with. This code indicates that the first bank of the engine is running too lean.
This code is very often caused by a leak in the intake manifold or a vacuum leak. However, it can be very frustrating to pinpoint the cause of this general code.
