LIN Bus A (+) Open
2002-2005 Ford Explorer 4.6L V8
Description
The LIN bus A wire is open, preventing communication with LIN slave devices.
Symptoms
- LIN-connected devices inoperative
- Seat memory not working
- Rain sensor offline
- Interior lighting module offline
Common Causes
- Broken LIN bus wire
- Corroded LIN connector
- LIN module unplugged
- Wiring harness damage
Diagnostic Steps
- Check LIN bus wire continuity
- Inspect connectors
- Test for 12V pullup on LIN bus
- Check LIN master output
Repair Notes
Repair open LIN bus wire. Check connectors at all LIN slave devices.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
U0038 on Other Vehicles
Ford Bronco
2021-2024 2.3L I4 EcoBoost
Ford Bronco
2021-2024 2.7L V6 EcoBoost
Ford Bronco Raptor
2022-2024 3.0L V6 EcoBoost
Ford Bronco Sport
2021-2024 1.5L I3 EcoBoost
Ford Bronco Sport
2021-2024 2.0L I4 EcoBoost
Ford Crown Victoria
1998-2011 4.6L V8 Modular 2V
Ford E-150
1997-2014 4.6L V8 Triton
Ford E-150
1997-2014 5.4L V8 Triton
Common Questions
What does code U0038 mean on a 2002-2005 Ford Explorer?
U0038 stands for "LIN Bus A (+) Open". The LIN bus A wire is open, preventing communication with LIN slave devices.
What are the symptoms of U0038 on a Ford Explorer?
Common symptoms of U0038 include: LIN-connected devices inoperative, Seat memory not working, Rain sensor offline, Interior lighting module offline.
What causes U0038 on a 2002-2005 Ford Explorer?
Common causes of U0038 include: Broken LIN bus wire, Corroded LIN connector, LIN module unplugged, Wiring harness damage.