U0130

Lost Communication With Steering Effort Control Module

Network / Communication Network/Communication CAN Bus Communication Fault 🟡 Moderate — Fix within a week ⚠️ Drive with Care
💬

What This Actually Means

In plain language — no jargon

Your vehicle's main computer has lost its connection to the steering effort control module, like a phone losing signal to a tower. This prevents the system from adjusting power steering assistance properly.

⚡

Symptoms You May Notice

3 known symptoms for this code
Power steering feels stiff or unresponsive
Check Engine Light illuminated on dashboard
Steering wheel becomes hard to turn at low speeds
🔬

How Your ECU Detects This

Technical sensor logic and voltage thresholds

The ECM communicates with the steering effort control module via CAN bus to monitor steering input and adjust hydraulic/electric assist levels. It expects periodic status messages and data within normal electrical parameters. If communication timeouts or signal integrity fails, the fault is triggered.

Voltage & Parameter Thresholds

ParameterNormal RangeFault Condition
CAN Bus Message Timeout Message received every 10-100ms No message received for >500ms
Module Voltage Supply 11.5V to 14.5V Below 10V or above 16V
🔧

Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex
1
Battery terminals and connections
Clean corrosion from battery posts and tighten all terminals to ensure solid ground and power supply.
2
CAN bus wiring harness connectors
Inspect and reseat all connectors along the steering control module's CAN bus lines for loose or corroded pins.
3
Steering effort control module
Replace the module if communication cannot be restored after checking wiring and power supply.
⚠️

When to See a Professional Mechanic

Not all fault codes are safe to DIY

Code U0130 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.

Safety note: OBD-II codes identify the system or circuit where a fault was detected — they do not always identify the exact failed component. A professional mechanic using live sensor data will diagnose the root cause more accurately than replacing parts based on the code alone.
🔄

How to Clear Code U0130

What happens after you fix the fault

Once the fault is repaired, U0130 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.

The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.

✅ Safe to Clear When
  • Fault has been diagnosed and repaired
  • You want to confirm the repair worked
  • Code appeared after a sensor was cleaned
⚠️ Do Not Clear When
  • Preparing for an emissions/PUC test
  • Root cause is still undiagnosed
  • Check engine light is flashing
Emissions test note: Clearing codes resets OBD readiness monitors. Most vehicles need 50–100 km of mixed driving before monitors complete. Do not clear codes immediately before an emissions or PUC inspection.