Code
B2441
LAND ROVER
B — Body
Driver side, side collision sensor mounting failure
Views:
UK: 6
EN: 9
RU: 10
AI status
Completed
Completed
100%
Causes
- Loose, missing, or damaged sensor mounting bracket or fasteners
- Sensor dislodged or installed with incorrect orientation/angle
- Corroded or damaged sensor connector or wiring harness
- Faulty side collision sensor (internal failure)
- SRS/airbag control module software or calibration error
- Aftermarket repairs or bodywork that altered sensor position
Symptoms
- Airbag/SRS warning lamp illuminated on dash
- Possible SRS system warnings or service messages on scan tool
- Seatbelt pretensioner or related restraint systems may be disabled
- No obvious electrical faults other than SRS lamp
- Vehicle recent body/seat repair or collision history
What to check
- Read DTCs and freeze frame data with an OEM-capable scan tool; note status (current/stored/permanent)
- Visual inspection of driver-side side collision sensor mounting point, bracket, and fasteners
- Check connector engagement, condition of pins, locking tab, and evidence of corrosion or water ingress
- Inspect harness routing for chafing, breaks, or repairs; gently wiggle harness while monitoring live data/DTCs
- Verify sensor is the correct part number and installed with correct orientation per service manual
- Check for related SRS codes that may indicate module or other sensor issues
Signal parameters
- SRS control module should detect the sensor ID and report presence on CAN; no response = missing
- Sensor internal self-test/passed flag reported via SRS network during ignition cycle
- Supply voltage to sensor approx. battery voltage (9–16 V during cranking/normal); reference OEM values
- Accelerometer/trigger channel baseline and noise values reported as expected; sudden short tests produce spikes
- Circuit continuity/resistance to ground per service manual (measure with harness disconnected)
- No short to battery or ground on sensor power and signal lines
Diagnostic algorithm
- Connect OEM scan tool, record DTC(s), freeze frame, and live SRS sensor list/status. Note whether code is current, pending, or permanent.
- Visually inspect sensor, bracket, and adjacent structure for damage, correct fastener torque, and correct orientation. Compare to service manual photos/diagrams.
- Inspect and backprobe connector: verify locking tab intact, pins not pushed back, no corrosion. With ignition ON, verify sensor supply and ground voltages per manual.
- Monitor live sensor data on scan tool while gently tapping and moving harness/mount; observe for loss of communication or absence of sensor ID.
- If wiring suspect, perform continuity and resistance checks between sensor connector and SRS control module; repair any open/shorted circuits.
- If connector, wiring, and mount are good but sensor still faults, swap with known-good sensor (if available) or replace sensor and reuse original bracket only if undamaged and correctly aligned.
- After repair or replacement, clear codes with scan tool and run OEM SRS self-test and any required sensor alignment/calibration procedures. Verify no new codes and that SRS lamp extinguishes.
- If DTC persists after sensor/connector/harness checks, inspect/replace mounting bracket or body anchors and repeat calibration. If still present, consider SRS control module diagnosis per OEM procedures.
Likely causes
- Mounting bolt(s) loosened during seat removal or body repair
- Sensor bracket cracked or deformed after an impact or crash repair
- Connector not fully seated or retaining clip broken
- Sensor replaced with incorrect part or installed rotated
- Wire chafing or pin corrosion at sensor connector
Fault status
Status
SRS control module reports driver-side side collision sensor mounting fault — sensor missing/not within expected orientation or failing self-test. DTC may be stored as current or permanent until repair and OEM self-test/calibration are completed.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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Code
B2441
Other
B — Body
Driver Sid, Side crash sensor mount fault
Views:
UK: 19
EN: 29
RU: 24
AI status
Completed
Completed
100%
Causes
- Loose, missing, or damaged sensor mounting bracket or fasteners
- Sensor dislodged or installed with incorrect orientation/angle
- Corroded or damaged sensor connector or wiring harness
- Faulty side collision sensor (internal failure)
- SRS/airbag control module software or calibration error
- Aftermarket repairs or bodywork that altered sensor position
Symptoms
- Airbag/SRS warning lamp illuminated on dash
- Possible SRS system warnings or service messages on scan tool
- Seatbelt pretensioner or related restraint systems may be disabled
- No obvious electrical faults other than SRS lamp
- Vehicle recent body/seat repair or collision history
What to check
- Read DTCs and freeze frame data with an OEM-capable scan tool; note status (current/stored/permanent)
- Visual inspection of driver-side side collision sensor mounting point, bracket, and fasteners
- Check connector engagement, condition of pins, locking tab, and evidence of corrosion or water ingress
- Inspect harness routing for chafing, breaks, or repairs; gently wiggle harness while monitoring live data/DTCs
- Verify sensor is the correct part number and installed with correct orientation per service manual
- Check for related SRS codes that may indicate module or other sensor issues
Signal parameters
- SRS control module should detect the sensor ID and report presence on CAN; no response = missing
- Sensor internal self-test/passed flag reported via SRS network during ignition cycle
- Supply voltage to sensor approx. battery voltage (9–16 V during cranking/normal); reference OEM values
- Accelerometer/trigger channel baseline and noise values reported as expected; sudden short tests produce spikes
- Circuit continuity/resistance to ground per service manual (measure with harness disconnected)
- No short to battery or ground on sensor power and signal lines
Diagnostic algorithm
- Connect OEM scan tool, record DTC(s), freeze frame, and live SRS sensor list/status. Note whether code is current, pending, or permanent.
- Visually inspect sensor, bracket, and adjacent structure for damage, correct fastener torque, and correct orientation. Compare to service manual photos/diagrams.
- Inspect and backprobe connector: verify locking tab intact, pins not pushed back, no corrosion. With ignition ON, verify sensor supply and ground voltages per manual.
- Monitor live sensor data on scan tool while gently tapping and moving harness/mount; observe for loss of communication or absence of sensor ID.
- If wiring suspect, perform continuity and resistance checks between sensor connector and SRS control module; repair any open/shorted circuits.
- If connector, wiring, and mount are good but sensor still faults, swap with known-good sensor (if available) or replace sensor and reuse original bracket only if undamaged and correctly aligned.
- After repair or replacement, clear codes with scan tool and run OEM SRS self-test and any required sensor alignment/calibration procedures. Verify no new codes and that SRS lamp extinguishes.
- If DTC persists after sensor/connector/harness checks, inspect/replace mounting bracket or body anchors and repeat calibration. If still present, consider SRS control module diagnosis per OEM procedures.
Likely causes
- Mounting bolt(s) loosened during seat removal or body repair
- Sensor bracket cracked or deformed after an impact or crash repair
- Connector not fully seated or retaining clip broken
- Sensor replaced with incorrect part or installed rotated
- Wire chafing or pin corrosion at sensor connector
Fault status
Status
SRS control module reports driver-side side collision sensor mounting fault — sensor missing/not within expected orientation or failing self-test. DTC may be stored as current or permanent until repair and OEM self-test/calibration are completed.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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