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Home / DTC / B0080 — Driver Seat Belt Load Limiter Deployment Control

B0080 — Driver Seat Belt Load Limiter Deployment Control

Detailed page for trouble code B0080.

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22,491specific
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Code

B0080

Generic B — Body

Driver Seat Belt Load Limiter Deployment Control

Brand: Generic
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Seat belt load limiter (pretensioner) has deployed or is shorted/open
  • Damaged wiring or poor connector contact in the pretensioner circuit
  • Faulty occupant restraint control module (SRS/airbag module)
  • Corroded or loose ground or power supply to the restraint module
  • Previous crash/fault not properly repaired or not cleared
  • Intermittent CAN/bus communication fault between modules

Symptoms

  • Airbag/SRS warning lamp illuminated on instrument cluster
  • Seat belt pretensioner may not function during a crash
  • DTC B0080 stored (may be accompanied by other airbag/seat belt codes)
  • Possible vehicle crash data present in SRS module memory
  • Occasional communication errors with restraint module reported by scan tool

What to check

  • Retrieve all SRS/airbag DTCs and freeze frame/fault data with a capable scan tool
  • Visual inspection of driver seatbelt pretensioner, connector, and wiring harness for damage or corrosion
  • Verify vehicle battery voltage and engine/ignition power to restraint module
  • Check ground integrity at module and seat grounding points
  • Confirm whether vehicle has prior crash repairs or undealt deployment flags

Signal parameters

  • Module supply voltage: ~12 V (with ignition on) — verify stable power
  • CAN/diagnostic bus idle voltage: ~2.5 V (if applicable) — controller communication present
  • Pretensioner/seat belt load limiter squib resistance (typical intact range): low ohms (commonly ~1–3 Ω) — consult OEM spec
  • After deployment: squib circuit typically reads open/infinite resistance
  • Module input signals: deployment command is a switched high-current driver; expect near-battery voltage when commanded (use caution)

Diagnostic algorithm

  1. Use a compatible scan tool to read DTCs, note freeze frame data, and check for related codes (airbag, pretensioner, module communications).
  2. Follow manufacturer SRS safety procedures: disable battery negative terminal and wait the OEM-specified time for capacitor discharge before touching restraint components.
  3. Visually inspect the driver seatbelt pretensioner, airbag connectors, and wiring harness for damage, chafing, corrosion, or loose pins.
  4. With power safely removed, measure resistance of the pretensioner squib at the connector. Compare to OEM specification — a very high/OL reading suggests an open (deployed) circuit; a near-zero reading suggests a short.
  5. Check continuity between pretensioner connector and SRS module squib terminals. Repair any open or shorted wiring and secure connectors.
  6. Reconnect battery and verify proper power and ground at the SRS module with ignition on (use diagnostic precautions). Verify module communication on the bus.
  7. If wiring and pretensioner are within spec, follow OEM procedure to test or replace the restraint control module if it reports driver pretensioner driver faults.
  8. After repairs, clear codes and perform the recommended SRS system checks/self-tests with the scan tool. Confirm no additional codes and that the SRS light extinguishes.
  9. If the pretensioner was deployed in a collision, replace the pretensioner, seatbelt assembly, and any required SRS module per OEM crash-related repair procedures.

Likely causes

  • Open or high resistance in pretensioner squib (deployment or broken conductor)
  • Short to ground or short to battery in pretensioner wiring or connector
  • Corroded connector at the seat belt pretensioner
  • Faulty SRS control module or internal driver for the pretensioner circuit
  • Stored crash data requiring module replacement or reset

Fault status

⚠️ Status
The SRS control module has logged a fault or deployment event for the driver seat belt load limiter/pretensioner circuit. The airbag/SRS warning lamp may be illuminated. Repairs should follow restraint-system safety procedures; replacement of the pretensioner, wiring repair, or module service may be required.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-3 hours

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Code

B0080

HUMMER B — Body

Discard Left Front/Driver SIS

Brand: HUMMER
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Seat belt load limiter (pretensioner) has deployed or is shorted/open
  • Damaged wiring or poor connector contact in the pretensioner circuit
  • Faulty occupant restraint control module (SRS/airbag module)
  • Corroded or loose ground or power supply to the restraint module
  • Previous crash/fault not properly repaired or not cleared
  • Intermittent CAN/bus communication fault between modules

Symptoms

  • Airbag/SRS warning lamp illuminated on instrument cluster
  • Seat belt pretensioner may not function during a crash
  • DTC B0080 stored (may be accompanied by other airbag/seat belt codes)
  • Possible vehicle crash data present in SRS module memory
  • Occasional communication errors with restraint module reported by scan tool

What to check

  • Retrieve all SRS/airbag DTCs and freeze frame/fault data with a capable scan tool
  • Visual inspection of driver seatbelt pretensioner, connector, and wiring harness for damage or corrosion
  • Verify vehicle battery voltage and engine/ignition power to restraint module
  • Check ground integrity at module and seat grounding points
  • Confirm whether vehicle has prior crash repairs or undealt deployment flags

Signal parameters

  • Module supply voltage: ~12 V (with ignition on) — verify stable power
  • CAN/diagnostic bus idle voltage: ~2.5 V (if applicable) — controller communication present
  • Pretensioner/seat belt load limiter squib resistance (typical intact range): low ohms (commonly ~1–3 Ω) — consult OEM spec
  • After deployment: squib circuit typically reads open/infinite resistance
  • Module input signals: deployment command is a switched high-current driver; expect near-battery voltage when commanded (use caution)

Diagnostic algorithm

  1. Use a compatible scan tool to read DTCs, note freeze frame data, and check for related codes (airbag, pretensioner, module communications).
  2. Follow manufacturer SRS safety procedures: disable battery negative terminal and wait the OEM-specified time for capacitor discharge before touching restraint components.
  3. Visually inspect the driver seatbelt pretensioner, airbag connectors, and wiring harness for damage, chafing, corrosion, or loose pins.
  4. With power safely removed, measure resistance of the pretensioner squib at the connector. Compare to OEM specification — a very high/OL reading suggests an open (deployed) circuit; a near-zero reading suggests a short.
  5. Check continuity between pretensioner connector and SRS module squib terminals. Repair any open or shorted wiring and secure connectors.
  6. Reconnect battery and verify proper power and ground at the SRS module with ignition on (use diagnostic precautions). Verify module communication on the bus.
  7. If wiring and pretensioner are within spec, follow OEM procedure to test or replace the restraint control module if it reports driver pretensioner driver faults.
  8. After repairs, clear codes and perform the recommended SRS system checks/self-tests with the scan tool. Confirm no additional codes and that the SRS light extinguishes.
  9. If the pretensioner was deployed in a collision, replace the pretensioner, seatbelt assembly, and any required SRS module per OEM crash-related repair procedures.

Likely causes

  • Open or high resistance in pretensioner squib (deployment or broken conductor)
  • Short to ground or short to battery in pretensioner wiring or connector
  • Corroded connector at the seat belt pretensioner
  • Faulty SRS control module or internal driver for the pretensioner circuit
  • Stored crash data requiring module replacement or reset

Fault status

⚠️ Status
The SRS control module has logged a fault or deployment event for the driver seat belt load limiter/pretensioner circuit. The airbag/SRS warning lamp may be illuminated. Repairs should follow restraint-system safety procedures; replacement of the pretensioner, wiring repair, or module service may be required.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-3 hours

Similar codes

B0081 B0051 B0020 B0100 B0421
Repair manuals

Manual library for HUMMER

138

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Code

B0080

LAND ROVER B — Body

control pilot for installation seat belt load limiter

Brand: LAND ROVER
Type: B — Body
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Seat belt load limiter (pretensioner) has deployed or is shorted/open
  • Damaged wiring or poor connector contact in the pretensioner circuit
  • Faulty occupant restraint control module (SRS/airbag module)
  • Corroded or loose ground or power supply to the restraint module
  • Previous crash/fault not properly repaired or not cleared
  • Intermittent CAN/bus communication fault between modules

Symptoms

  • Airbag/SRS warning lamp illuminated on instrument cluster
  • Seat belt pretensioner may not function during a crash
  • DTC B0080 stored (may be accompanied by other airbag/seat belt codes)
  • Possible vehicle crash data present in SRS module memory
  • Occasional communication errors with restraint module reported by scan tool

What to check

  • Retrieve all SRS/airbag DTCs and freeze frame/fault data with a capable scan tool
  • Visual inspection of driver seatbelt pretensioner, connector, and wiring harness for damage or corrosion
  • Verify vehicle battery voltage and engine/ignition power to restraint module
  • Check ground integrity at module and seat grounding points
  • Confirm whether vehicle has prior crash repairs or undealt deployment flags

Signal parameters

  • Module supply voltage: ~12 V (with ignition on) — verify stable power
  • CAN/diagnostic bus idle voltage: ~2.5 V (if applicable) — controller communication present
  • Pretensioner/seat belt load limiter squib resistance (typical intact range): low ohms (commonly ~1–3 Ω) — consult OEM spec
  • After deployment: squib circuit typically reads open/infinite resistance
  • Module input signals: deployment command is a switched high-current driver; expect near-battery voltage when commanded (use caution)

Diagnostic algorithm

  1. Use a compatible scan tool to read DTCs, note freeze frame data, and check for related codes (airbag, pretensioner, module communications).
  2. Follow manufacturer SRS safety procedures: disable battery negative terminal and wait the OEM-specified time for capacitor discharge before touching restraint components.
  3. Visually inspect the driver seatbelt pretensioner, airbag connectors, and wiring harness for damage, chafing, corrosion, or loose pins.
  4. With power safely removed, measure resistance of the pretensioner squib at the connector. Compare to OEM specification — a very high/OL reading suggests an open (deployed) circuit; a near-zero reading suggests a short.
  5. Check continuity between pretensioner connector and SRS module squib terminals. Repair any open or shorted wiring and secure connectors.
  6. Reconnect battery and verify proper power and ground at the SRS module with ignition on (use diagnostic precautions). Verify module communication on the bus.
  7. If wiring and pretensioner are within spec, follow OEM procedure to test or replace the restraint control module if it reports driver pretensioner driver faults.
  8. After repairs, clear codes and perform the recommended SRS system checks/self-tests with the scan tool. Confirm no additional codes and that the SRS light extinguishes.
  9. If the pretensioner was deployed in a collision, replace the pretensioner, seatbelt assembly, and any required SRS module per OEM crash-related repair procedures.

Likely causes

  • Open or high resistance in pretensioner squib (deployment or broken conductor)
  • Short to ground or short to battery in pretensioner wiring or connector
  • Corroded connector at the seat belt pretensioner
  • Faulty SRS control module or internal driver for the pretensioner circuit
  • Stored crash data requiring module replacement or reset

Fault status

⚠️ Status
The SRS control module has logged a fault or deployment event for the driver seat belt load limiter/pretensioner circuit. The airbag/SRS warning lamp may be illuminated. Repairs should follow restraint-system safety procedures; replacement of the pretensioner, wiring repair, or module service may be required.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-3 hours

Similar codes

B0081 B0051 B0020 B0100 B0421
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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+100 karma for a short comment :)
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