B1054 – Driver airbag module (Nissan)

B1054 means the airbag system has a problem related to the driver airbag module on your Nissan Qashqai. In real life, that usually turns the SRS (airbag) warning light on and can disable the driver airbag until you fix the cause. This is a Nissan manufacturer-specific code, so the exact logic can vary by platform. According to Nissan factory diagnostic data, this code indicates a fault area associated with the driver airbag module. Treat it as a safety-critical issue. Follow OEM SRS depowering steps before touching any related connector, and use a scan tool that can access Nissan SRS data.

B1054 Quick Answer

B1054 on Nissan points to the driver airbag module circuit/system as the suspected trouble area. The SRS light often stays on, and the driver airbag may not deploy until you confirm and repair the underlying wiring, connection, or component issue.

What Does B1054 Mean?

Official definition: “Driver airbag module.” On Nissan vehicles, B1054 sets when the SRS control unit flags a fault associated with the driver airbag module circuit. In practice, the SRS system stops trusting the driver airbag path, so it commands the warning lamp and may inhibit deployment for safety.

What the module checks: The SRS control unit continuously monitors the driver airbag module’s circuit integrity through the harness and connectors. It looks for an electrical condition that does not match expected resistance and continuity. Why it matters: The DTC message does not prove the airbag module itself failed. It points you to a test area. You must confirm the fault with OEM-approved SRS test methods before replacing parts.

Theory of Operation

Under normal operation, the Nissan SRS control unit supplies a monitored, low-energy diagnostic signal through the driver airbag module circuits. The control unit expects a stable electrical signature through the clockspring, connectors, and harness. If a crash event occurs, the control unit drives the inflator with a separate deployment command path.

B1054 sets when that monitored circuit signature goes out of range or becomes unstable. High resistance from a loose connector, an intermittent clockspring, or harness damage can trigger it. Poor terminal tension and corrosion also change the circuit’s electrical behavior. Because this is an SRS circuit, you must depower the system and avoid standard probes. Use only OEM-approved adapters and procedures.

Symptoms

These symptoms commonly show up on a Nissan Qashqai when B1054 sets.

• SRS warning lamp stays on or comes on intermittently
• Airbag status indicates a fault and may disable the driver airbag function
• Stored DTC B1054 returns immediately after a proper repair attempt
• Intermittent fault appears after steering wheel movement or tilt adjustment
• Scan tool data shows driver airbag module circuit fault status changing with harness movement
• No other symptoms occur during driving because SRS faults rarely affect engine operation
• Post-service issue appears after steering wheel, column, or trim work near SRS wiring

Common Causes

• High resistance at the driver airbag (squib) connector: Loose terminal tension or light corrosion changes circuit resistance and triggers the Nissan SRS monitor to flag the driver airbag module circuit as faulty.
• Open circuit in the driver airbag module harness: A broken conductor in the steering wheel/column harness interrupts current flow, so the SRS control unit cannot verify the driver airbag module circuit.
• Short to ground or short to power in the airbag circuit: Chafed insulation or pinched wiring can pull the circuit low or high and the SRS module sets B1054 to isolate the suspected circuit path.
• Clock spring (spiral cable) internal fault: The spiral cable flexes with steering input, and an internal open or intermittent connection often shows up as a driver airbag module DTC on Nissan platforms.
• Improperly seated connectors after steering wheel or column work: A partially latched SRS connector or a backed-out terminal can create intermittent opens that return immediately at key-on self-test.
• Previous deployment, damage, or incorrect component fitment: A deployed or physically damaged driver airbag module, or non-matching parts, can change the electrical characteristics the Nissan SRS system expects to see.
• Harness damage near the steering column or tilt/tele adjustment points: Repeated movement or trim interference can rub through wiring and create an intermittent fault that sets during column movement.
• Low system voltage during SRS self-check: Weak battery voltage or unstable power distribution can cause the SRS module to fail its initialization checks and log a driver airbag circuit-related fault.

Diagnosis Steps

You need a scan tool with full Nissan SRS access, service information for connector IDs and pinouts, and a quality DMM. Use OEM-approved SRS test methods only. Do not probe airbag connectors with standard meter leads. Depower the SRS system using Nissan procedures before you disconnect any SRS connector on the Qashqai.

1. Connect a capable scan tool and run an SRS self-diagnosis. Record B1054 as stored, pending, or current. Save freeze frame or fault-record data if the tool provides it. For this circuit-type SRS code, focus on battery voltage, ignition state, and any companion SRS DTCs that set with it.
2. Perform a quick visual inspection before any measurements. Check battery terminals for looseness and inspect main power distribution connections you can see. Verify related fuses and fusible links that supply the SRS system using the vehicle’s fuse map. Do not access the SRS control unit connectors yet.
3. Verify charging and base electrical health. Confirm the battery holds stable voltage during key-on and cranking. Unstable system voltage can corrupt the SRS self-check and mimic a circuit fault. Correct low voltage issues before you chase the airbag circuit.
4. Key on and re-check SRS codes. Note whether B1054 returns immediately at key-on. A hard fault usually returns right away on the SRS self-test. An intermittent fault may set only after steering movement or a bump. Use this behavior to plan your next checks.
5. Depower the SRS system following Nissan procedures. Wait the specified time for backup power to discharge. Then disable the system so you can safely disconnect connectors. Treat every yellow SRS connector as live until you complete depowering.
6. Inspect the driver airbag module connector and steering wheel harness routing. Look for poor terminal engagement, bent pins, moisture tracks, or fretting. Confirm the connector locks fully seat. Do not apply contact grease unless Nissan specifies it for that connector.
7. Inspect the spiral cable (clock spring) and its connectors at the steering column. Look for signs of over-rotation, damaged centering, or harness stretch. If the steering wheel recently came off, confirm the spiral cable stayed centered during reassembly. A mis-centered spiral cable can fail quickly and create an open.
8. Check SRS control unit power and grounds with voltage-drop testing under load. Backprobe only at approved points and only per Nissan methods. Turn ignition on and command any available SRS output tests if supported. Measure ground voltage drop while the circuit carries load. Keep ground drop under 0.1 V. Do not rely on continuity checks alone.
9. Perform circuit integrity tests using the OEM-approved method for squib circuits. Many Nissan procedures call for a dedicated airbag simulator or specified adapter harness. Follow that guidance exactly. Your goal is to verify the harness path from the SRS control unit to the steering wheel side without risking deployment. Do not use an ohmmeter directly across an airbag inflator.
10. Wiggle-test the harness and steering column area while monitoring SRS data or code status. Use a scan tool snapshot for intermittent faults. Freeze frame shows conditions when B1054 set. A snapshot captures the exact moment the fault reappears during your manipulation. Pay attention to steering angle movement and column tilt changes.
11. If testing points to a specific segment, isolate it. For example, confirm whether the fault follows the spiral cable by testing on each side of the spiral cable connectors with the approved adapter. Do not swap parts as a test until the circuit results justify it.
12. After repairs, reassemble all connectors with correct locking steps, then restore SRS power per Nissan procedure. Clear SRS codes only after the repair. Cycle ignition and verify the SRS warning lamp proves out normally. Re-scan to confirm B1054 stays cleared and no related SRS codes return.

Professional tip: On Qashqai steering column work, most repeat comebacks come from connector seating and terminal tension, not the airbag module itself. Use your scan tool to confirm whether the fault returns immediately at key-on. That pattern usually points to a hard open/short. An intermittent that appears with steering movement strongly implicates the spiral cable or a rubbed harness.

Possible Fixes

• Restore connector integrity at the driver airbag module: Correct terminal fit, clean light corrosion per Nissan guidance, and fully seat and lock the connector after SRS depowering.
• Repair the steering wheel/column harness damage: Fix chafed, pinched, or broken wiring using OEM-acceptable repair methods and routing to prevent repeat rub-through.
• Replace the spiral cable (clock spring) after verification: Replace only after tests isolate an internal open or intermittent in the spiral cable circuit path and confirm correct centering on installation.
• Correct SRS power/ground or low-voltage problems: Repair poor grounds, loose battery connections, or power distribution faults confirmed by voltage-drop testing under load.
• Replace the driver airbag module only after circuit proof: Consider replacement only when the harness and spiral cable test good using approved SRS methods and the fault persists with proper power and grounds.

Can I Still Drive With B1054?

You can usually drive a Nissan Qashqai with B1054, but you should treat the SRS as compromised. This code points to a fault in the driver airbag module circuit area, so the airbag warning lamp often stays on. When that lamp stays on, Nissan typically disables some or all airbag deployment logic as a safety strategy. The vehicle will still steer, brake, and accelerate normally. However, your crash protection may not work as designed. Do not attempt DIY testing at the steering wheel. Follow Nissan SRS depowering procedures before touching any yellow connector, and use only OEM-approved test methods. Schedule diagnosis with a scan tool that fully supports Nissan SRS functions.

How Serious Is This Code?

B1054 rates as high severity for safety, even when the car “drives fine.” The fault does not usually create a drivability complaint. It does change risk in a collision. Nissan sets this manufacturer-specific code when the SRS control unit sees an out-of-range condition tied to the driver airbag module. That can mean excess resistance, an intermittent connection, a short, or a circuit integrity issue, depending on platform logic. Treat the system as potentially disabled until proven otherwise. Proper diagnosis requires SRS-capable scan equipment, Nissan wiring information, and technician training. Avoid probing SRS circuits with standard meter leads or test lights.

Common Misdiagnoses

Technicians often replace the driver airbag module because the description “Driver airbag module” sounds like a confirmed failed part. It is not. The DTC only identifies a suspected trouble area, per SAE J2012 diagnostic intent. Another common error involves checking resistance directly across the airbag or clockspring with an ohmmeter. That test can deploy an inflator on some designs, or it can damage the SRS controller. Shops also miss intermittent steering wheel harness issues because they do not perform a controlled wiggle test while watching SRS data. Finally, many generic scan tools show the code but cannot access Nissan SRS data or freeze-frame equivalents, which leads to guessing.

Most Likely Fix

The most frequently confirmed repair directions for B1054 on Nissan platforms involve restoring circuit integrity rather than replacing the airbag first. Start with a verified SRS depower, then inspect and secure the driver airbag module connectors and the steering wheel harness routing for pin fit, backed-out terminals, or damage from prior steering wheel work. Next, verify clockspring and related harness continuity using OEM-approved procedures and a breakout method specified by Nissan, not direct probing at the inflator. If tests show stable wiring and terminal tension, then consider a driver airbag module or clockspring fault, followed by required Nissan initialization and code verification with an SRS-capable scan tool.

Repair Costs

SRS/airbag repair costs vary significantly by component. Diagnosis must be performed by a qualified technician with SRS-capable equipment. Do not attempt airbag system repairs without proper training and safety procedures.

Last updated: April 3, 2026