13 distinct codes across 9 real Jeep diagnostics.
13 distinct codes across 9 real diagnostics on Jeep, including the Jeep-specific ones no generic code list can decode.
Jeep-specific codes
These are manufacturer-specific, which means the same code on another marque is a different fault. That is exactly why they have no page of their own and no entry in any generic code list. Scoped to Jeep and ranked by how often we have actually seen them, they are a claim we can stand behind.
- P1593, seen in 1 Jeep diagnostic
- P3449, seen in 1 Jeep diagnostic
Standard codes we see most on Jeep
These are standardised, so they mean the same thing on every vehicle. The counts are what we see on Jeep specifically.
- U0102, Lost communication with transfer case control module
- P0238, Turbocharger boost sensor A circuit high
- P0336, Crankshaft position sensor A circuit range/performance
- P062B, not individually documented
- P0A7D, not individually documented
- U0401, Invalid data received from ECM/PCM A
- U0403, Invalid data received from transfer case control module
What tends to go wrong on Jeep
By share of the codes we have seen on this marque. A description of our own caseload, not a reliability ranking.
- Bus communication, 5 code sightings
- Powertrain, manufacturer-specific, 2 code sightings
- Hybrid and EV propulsion, 2 code sightings
- ECU internal and software, 2 code sightings
- Misfire, 1 code sighting
- Turbo and boost control, 1 code sighting