What does fault code U0136 mean?
Diagnostic trouble code U0136 is defined as Network Communication Bus Fault U0136. This standard OBD2 code is triggered when your car's powertrain or module sensor voltage deviates from calibrated safety tolerances.
Severity & Can I Drive With Code U0136?
Severity Rating: 4/5 (High Severity)
⚠️ Drivability Warning: Prolonged driving with this code is not recommended. Prompt repair is suggested to prevent secondary component damage.
Common Symptoms of U0136
- Multiple dashboard warning lights illuminated
- Gauge cluster erratic
Common Causes Ranked by Likelihood
- CAN High or CAN Low bus voltage drop
- Unplugged module harness
- Weak 12V battery
DIY Repair & Troubleshooting Steps
- Check battery terminal voltage
- Inspect CAN bus fuses
Professional Shop Repair & Estimated Cost Range
- Trace CAN bus resistance with oscilloscope
- Replace faulty bus module
Estimated Repair Cost Range: $120 - $800
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