Lost Communication with Leveling Control Module
2003-2003 Mazda MX-5 Miata 1.8L I4
The 2003 Mazda MX-5 Miata is equipped with a 1.8L inline-4 engine. Below you'll find detailed u0136 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Cannot communicate with the automatic leveling or load-leveling suspension module.
Symptoms
- Headlight auto-leveling disabled
- Vehicle sitting unevenly
- Leveling warning message
Common Causes
- Leveling module failure
- CAN bus wiring
- Module power loss
- Height sensor issue
Diagnostic Steps
- Check leveling module fuse
- Test power and ground
- Check CAN wiring
- Test height sensors
- Inspect leveling actuators
Repair Notes
Check fuses and height sensor operation. Common issue after suspension work.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0136 on Other Vehicles
Common Questions
What does code U0136 mean on a 2003-2003 Mazda MX-5 Miata?
U0136 stands for "Lost Communication with Leveling Control Module". Cannot communicate with the automatic leveling or load-leveling suspension module.
What are the symptoms of U0136 on a Mazda MX-5 Miata?
Common symptoms of U0136 include: Headlight auto-leveling disabled, Vehicle sitting unevenly, Leveling warning message.
What causes U0136 on a 2003-2003 Mazda MX-5 Miata?
Common causes of U0136 include: Leveling module failure, CAN bus wiring, Module power loss, Height sensor issue.
Last updated: March 2026