U0130 – Lost Communication With Steering Effort Control Module

System: Network | Standard: ISO/SAE Controlled | Fault type: General

Definition source: SAE J2012/J2012DA (industry standard)

DTC U0130 indicates a network communication problem: one or more modules are reporting a lost communication condition with the Steering Effort Control Module. This is not a “bad part” verdict by itself; it means the expected messages from that module were not received within the time window the network monitor requires. The exact modules involved, the message set being monitored, and how quickly the fault sets can vary by vehicle, so confirm network topology, connector locations, and diagnostic routines in the correct service information. Because steering assist may be managed or influenced by the affected module, treat this code as potentially safety-relevant until you verify actual steering assist behavior and confirm whether the fault is current or only stored.

What Does U0130 Mean?

U0130 – Lost Communication With Steering Effort Control Module means the vehicle’s network has detected that communication with the Steering Effort Control Module has been lost. Per SAE J2012, the DTC structure identifies this as a network (U-family) diagnostic entry, and the definition specifies that the fault is the absence of expected network communication rather than a direct sensor or actuator circuit measurement. In practice, another controller (or multiple controllers) may set U0130 when it can’t receive required data from the Steering Effort Control Module, or when a gateway reports the module is no longer present on the bus. Confirm whether U0130 is active, history, or intermittent using a capable scan tool.

Quick Reference

• Subsystem: Vehicle communication network messaging related to the Steering Effort Control Module.
• Common triggers: Module offline on the network, intermittent bus disruption, power/ground interruption to the module, or connector/wiring faults affecting network circuits.
• Likely root-cause buckets: Wiring/connector issues, power/ground feed problems, network circuit faults, module internal fault, or configuration/software issues (varies by vehicle).
• Severity: Potentially moderate to high; may impact steering assist strategy, steering feel, warning indicators, and driver assistance features depending on design.
• First checks: Verify if the module communicates, check related network DTCs, inspect module power/ground and connectors, and confirm the fault is current.
• Common mistakes: Replacing steering components or the module before confirming network integrity, power/ground quality, and whether another module or gateway is the true source of the communication loss.

Theory of Operation

Modern vehicles use a shared communication network so controllers can exchange data. The Steering Effort Control Module typically publishes periodic messages that other modules use to coordinate steering assist, steering feel, stability functions, or driver information. Other controllers and/or a central gateway continuously monitor whether expected messages are arriving and whether the sender remains present on the network.

U0130 sets when that monitoring detects missing communication with the Steering Effort Control Module for longer than the allowed timeout. Causes are often electrical or network-related: the module may lose power or ground, network wiring may be open/shorted, connectors may have poor terminal fit, or bus traffic may be disrupted. Because this is a communication-loss fault, diagnosis focuses on verifying module presence on the network, confirming stable power/ground, and validating network circuit integrity under load and during vibration.

Symptoms

• Warning lights: Steering-related warning indicator and/or general warning messages may illuminate.
• Steering feel: Reduced assist, increased effort, or inconsistent steering effort may be noticed (varies by vehicle).
• Intermittent operation: Symptoms may come and go, often related to bumps, temperature changes, or harness movement.
• Feature limitations: Driver assistance or stability-related features that depend on steering data may be limited or disabled.
• Communication loss: The Steering Effort Control Module may be unreachable with a scan tool or may drop offline intermittently.
• Stored codes: Additional U-codes in other modules may appear, indicating broader network issues or a common power/ground problem.

Common Causes

• Open, shorted, chafed, or high-resistance wiring in the network communication circuits between modules
• Poor connector pin fit, backed-out terminals, corrosion, or water intrusion at the steering effort control module connector or network splice points
• Loss of power feed(s) to the steering effort control module (blown fuse, faulty relay, damaged feed wire)
• Loss of ground to the steering effort control module (loose ground fastener, corroded ground eyelet, damaged ground wire)
• Intermittent connection caused by harness movement, vibration, or strain near the module, steering column/rack area, or firewall pass-through (varies by vehicle)
• Network backbone or junction fault affecting multiple modules (damaged main harness segment, splice pack issues, connector damage at a gateway location)
• Module internal fault preventing communication (steering effort control module hardware failure)
• Module configuration/software issue after replacement, programming, or low-voltage events (varies by vehicle and platform)

Diagnosis Steps

Tools typically needed: a capable scan tool that can read network DTCs and module status, a digital multimeter, and access to vehicle-specific wiring diagrams and connector views. A battery charger or maintainer is recommended to keep system voltage stable during testing. If available, a breakout lead set and back-probing pins help reduce terminal damage during measurements.

1. Confirm the complaint and capture data. Perform a full vehicle scan and record all DTCs (current, pending, and history) plus freeze-frame or fault records. Note whether U0130 is current or stored and whether other network or power-related codes are present.
2. Check scan tool module presence. Use the network/module list to see if the steering effort control module is detected. If it is missing from the list, treat it as a strong indicator of a power/ground/network issue to that module. If it is present, prioritize intermittent communication or network quality concerns.
3. Evaluate related warnings and operating mode. Note any steering warning indicators, reduced assist messages, or changes in steering feel. This helps prioritize safety and guides whether the issue is continuous or intermittent.
4. Verify battery and charging system health. Inspect for loose battery terminals and obvious power supply issues. Low system voltage or unstable supply can cause modules to drop off the network; correct these issues before deep network diagnostics.
5. Inspect fuses, relays, and power feeds for the steering effort control module. Using service information, identify all module power supplies. Check the relevant fuses under load where possible, and verify relay operation if used. If a fuse is blown, do not replace it repeatedly without finding the underlying short or overload.
6. Confirm module grounds with voltage-drop testing. With the circuit loaded (key on, and module commanded on if possible), perform voltage-drop tests on the steering effort control module ground paths from the module ground pin(s) to the battery negative/known good ground. Excessive drop indicates resistance in the ground path that can prevent stable communication.
7. Check module power at the connector. Back-probe the module power and ground pins and verify the module receives proper supply and ground integrity per service information. If power or ground is missing or unstable, isolate the open/high resistance by working upstream through connectors, splices, and junctions.
8. Inspect the network wiring and connectors at the module and along the harness. Look for bent pins, pin push-out, corrosion, moisture, damaged seals, and harness chafing. Pay special attention to areas with movement or heat exposure (routing varies by vehicle). Repair terminal issues rather than forcing connectors to fit.
9. Perform a wiggle test while monitoring. With the scan tool connected, monitor module presence, communication status, and any relevant network PIDs while gently wiggling the harness and connectors at the module, splice points, and suspected rub-through areas. If communication drops in/out, focus on that section for intermittent opens or terminal fit problems.
10. Evaluate network integrity using service information test points. With the system powered down as specified by service procedures, check continuity and for shorts between the network circuits and to power/ground. If directed by service information, measure network resistance at the diagnostic connector or specified junction to identify opens, shorts, or termination issues (exact methods vary by vehicle).
11. Rule out a network-wide problem. If multiple modules report lost communication codes, diagnose the network backbone, gateway/junction connections, and shared power/ground distribution before condemning the steering effort control module.
12. Only after power/ground/network checks pass, assess the module itself. If the steering effort control module consistently has correct power and ground, the network circuits test good, and the module still will not communicate, follow service information for module reset, configuration verification, and replacement/programming steps where applicable.

Professional tip: Treat “lost communication” codes as a network or power/ground integrity problem until testing proves otherwise. A quick module swap is a common trap because a module that is offline due to a weak ground, pin-fit issue, or intermittent harness open will make a good replacement appear “dead” as well. Use scan-tool module presence plus loaded voltage-drop tests and a monitored wiggle test to catch intermittent faults.

Possible Fixes & Repair Costs

Repair cost for U0130 varies widely because the root cause can range from a simple connection issue to network wiring repairs or module-level faults. Labor time depends on access, required inspections, and whether additional network diagnostics are needed to confirm the failure.

• Restore power and ground to the steering effort control module by repairing the verified open/high-resistance feed, ground, or related fuse/relay circuit as applicable.
• Repair or replace damaged network wiring (for example, harness sections with abrasion, pinched conductors, or confirmed opens/shorts) and secure proper routing to prevent recurrence.
• Clean, repair, or replace affected connectors/terminals (corrosion, backed-out pins, poor pin fit) and confirm correct terminal tension after reassembly.
• Address verified network communication issues by correcting improper splices, aftermarket add-ons, or wiring repairs that disturb the bus circuit integrity.
• If diagnostics confirm the steering effort control module is not communicating despite correct power/ground and network integrity, replace the module as directed by service information.
• Perform required setup procedures after module replacement (coding/variant configuration/calibration), then clear codes and confirm U0130 does not return.

Can I Still Drive With U0130?

U0130 indicates lost communication with the steering effort control module, which can change steering assist behavior and may trigger warnings. If you notice heavy steering, inconsistent assist, multiple warning lights, or any safety-related messages, do not drive and have the vehicle inspected. If the only symptom is an intermittent warning with normal steering feel, a short, low-risk drive to a repair location may be possible, but use extra caution and avoid high-speed or congested conditions until the cause is confirmed.

What Happens If You Ignore U0130?

Ignoring U0130 can lead to intermittent or persistent loss of steering assist and recurring warnings, especially if the underlying issue is a worsening wiring/connector fault. Communication problems on the vehicle network can also spread symptoms to other systems, complicating diagnosis and potentially increasing repair scope if harness damage or terminal corrosion progresses.

Last updated: March 16, 2026

Vehicles Commonly Affected by U0130

• Vehicles equipped with electronically controlled steering assist that uses a dedicated steering effort control module
• Platforms where multiple chassis systems share a common communication network (networked steering, braking, stability control)
• Vehicles with high under-hood heat exposure that can accelerate harness and connector degradation
• Vehicles operating in wet, salty, or corrosive environments that can affect terminal contact quality
• Vehicles with prior collision repair or suspension/steering service where harness routing or connectors may have been disturbed
• Vehicles with prior wiring repairs or added electrical accessories that can interfere with network wiring integrity
• High-mileage vehicles where connector fretting and terminal tension loss is more likely
• Vehicles that frequently experience low-battery events, jump starts, or charging system issues affecting module operation