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Home / DTC / B0075 — Second Row Right Seat Belt Pretensioner Deployment Control

B0075 — Second Row Right Seat Belt Pretensioner Deployment Control

Detailed page for trouble code B0075.

34,397codes
59brands
11,906generic
22,491specific
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Code

B0075

Generic B — Body

Second Row Right Seat Belt Pretensioner Deployment Control

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

Causes

  • Open circuit (broken wire or unplugged connector) in the pretensioner squib circuit
  • Short to ground or short to battery on the pretensioner wiring
  • High resistance in connector or wiring (corrosion, bent pins, water intrusion)
  • Failed pretensioner squib (internal break or short)
  • SRS (airbag) control module fault or poor ground at module
  • Previous deployment not replaced or improper repair after crash

Symptoms

  • SRS / airbag warning lamp illuminated on dash
  • Diagnostic trouble code B0075 stored in SRS control module
  • Seat belt pretensioner for second row right may not deploy in a crash
  • Possible disabled SRS functions or related restraint faults

What to check

  • Read and record all SRS codes and freeze frame using a capable scan tool
  • Check for deployment history/airbag deployment flag in module (previous crash)
  • Visual inspection of the second-row right seat connectors, harness, and seat anchorage for damage, corrosion, or disconnected plugs
  • Measure continuity/resistance of the pretensioner squib circuit at the squib connector and at the module connector
  • Inspect and verify proper grounds for the SRS module and seat circuits
  • Wiggle test wiring with connector connected while watching live data / resistance (carefully) for intermittent faults

Signal parameters

  • Expected pretensioner squib resistance (intact): typically about 0.5–3.0 ohms (manufacturer-specific).
  • Open circuit: very high / infinite ohms (no continuity).
  • Short to ground / short to battery: near 0 ohms or significantly lower than spec.
  • No sustained normal voltage should appear on the squib circuit except during deployment; module uses a high-current discharge during deployment — do not attempt to apply voltage.
  • SRS module monitors circuit continuity and resistance thresholds; refer to OEM spec for exact ohm target and tolerance.

Diagnostic algorithm

  1. Read codes: Connect an SRS-capable scan tool, record B0075 and any related codes, and note freeze frame/deployment flags.
  2. Check history: Verify whether vehicle has prior airbag deployment or repair. If previous deployment occurred, confirm pretensioner replacement and proper airbag system repairs.
  3. Safety prep: Disable SRS power—disconnect battery negative and wait at least 2–3 minutes (follow vehicle manufacturer specified wait time) before touching airbag/pretensioner connectors.
  4. Inspect connectors: Locate the second-row right seat pretensioner connector (under seat or at base), disconnect, and inspect pins for corrosion, bent pins, or push-out.
  5. Measure squib resistance: With battery disconnected, measure resistance across the pretensioner squib terminals at the connector. Compare to manufacturer spec (typical 0.5–3.0 Ω). If open or out of spec, replace pretensioner.
  6. Check harness continuity: Measure continuity from the pretensioner connector back to the SRS module connector. Repair any opens, shorts, or high-resistance sections; pay attention to areas that flex (seat tracks, movable harness).
  7. Inspect for shorts: Check for short to ground or battery by measuring resistance to chassis ground and to battery positive (with battery disconnected).
  8. Repair/replace: Replace damaged wiring, connectors, or the pretensioner squib as required. If module wiring is damaged, repair per good wiring practice and OEM SRS guidelines.
  9. Reconnect and reset: Reconnect battery, clear codes with scan tool, and run SRS self-tests. Confirm the SRS lamp extinguishes and no new B0075 reappears.
  10. Final verification: If available, command a system lamp test or run live data diagnostics per OEM procedures. If fault persists after repairs, evaluate SRS control module for proper operation (replacement only per OEM procedures).
  11. Note: Always follow manufacturer SRS safety procedures when handling pretensioners; do not attempt to fire or bench-test squibs with external voltage.

Likely causes

  • Open or corroded connector at the second-row right seat pretensioner
  • Damaged wiring in the seat harness where it flexes or is routed
  • Failed pretensioner squib (requires replacement)
  • Previous crash/repair left pretensioner disconnected or not replaced

Fault status

⚠️ Status
SRS control module detected abnormal condition in Second Row Right seat belt pretensioner deployment control circuit (open/short/high resistance or prior deployment).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2 hours

Similar codes

B0076 B0070 B0051 B0010 B0090
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Code

B0075

HUMMER B — Body

Supplemental Deployment Loop #1 Short to Ground/Voltage Out of Range

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

Causes

  • Open circuit (broken wire or unplugged connector) in the pretensioner squib circuit
  • Short to ground or short to battery on the pretensioner wiring
  • High resistance in connector or wiring (corrosion, bent pins, water intrusion)
  • Failed pretensioner squib (internal break or short)
  • SRS (airbag) control module fault or poor ground at module
  • Previous deployment not replaced or improper repair after crash

Symptoms

  • SRS / airbag warning lamp illuminated on dash
  • Diagnostic trouble code B0075 stored in SRS control module
  • Seat belt pretensioner for second row right may not deploy in a crash
  • Possible disabled SRS functions or related restraint faults

What to check

  • Read and record all SRS codes and freeze frame using a capable scan tool
  • Check for deployment history/airbag deployment flag in module (previous crash)
  • Visual inspection of the second-row right seat connectors, harness, and seat anchorage for damage, corrosion, or disconnected plugs
  • Measure continuity/resistance of the pretensioner squib circuit at the squib connector and at the module connector
  • Inspect and verify proper grounds for the SRS module and seat circuits
  • Wiggle test wiring with connector connected while watching live data / resistance (carefully) for intermittent faults

Signal parameters

  • Expected pretensioner squib resistance (intact): typically about 0.5–3.0 ohms (manufacturer-specific).
  • Open circuit: very high / infinite ohms (no continuity).
  • Short to ground / short to battery: near 0 ohms or significantly lower than spec.
  • No sustained normal voltage should appear on the squib circuit except during deployment; module uses a high-current discharge during deployment — do not attempt to apply voltage.
  • SRS module monitors circuit continuity and resistance thresholds; refer to OEM spec for exact ohm target and tolerance.

Diagnostic algorithm

  1. Read codes: Connect an SRS-capable scan tool, record B0075 and any related codes, and note freeze frame/deployment flags.
  2. Check history: Verify whether vehicle has prior airbag deployment or repair. If previous deployment occurred, confirm pretensioner replacement and proper airbag system repairs.
  3. Safety prep: Disable SRS power—disconnect battery negative and wait at least 2–3 minutes (follow vehicle manufacturer specified wait time) before touching airbag/pretensioner connectors.
  4. Inspect connectors: Locate the second-row right seat pretensioner connector (under seat or at base), disconnect, and inspect pins for corrosion, bent pins, or push-out.
  5. Measure squib resistance: With battery disconnected, measure resistance across the pretensioner squib terminals at the connector. Compare to manufacturer spec (typical 0.5–3.0 Ω). If open or out of spec, replace pretensioner.
  6. Check harness continuity: Measure continuity from the pretensioner connector back to the SRS module connector. Repair any opens, shorts, or high-resistance sections; pay attention to areas that flex (seat tracks, movable harness).
  7. Inspect for shorts: Check for short to ground or battery by measuring resistance to chassis ground and to battery positive (with battery disconnected).
  8. Repair/replace: Replace damaged wiring, connectors, or the pretensioner squib as required. If module wiring is damaged, repair per good wiring practice and OEM SRS guidelines.
  9. Reconnect and reset: Reconnect battery, clear codes with scan tool, and run SRS self-tests. Confirm the SRS lamp extinguishes and no new B0075 reappears.
  10. Final verification: If available, command a system lamp test or run live data diagnostics per OEM procedures. If fault persists after repairs, evaluate SRS control module for proper operation (replacement only per OEM procedures).
  11. Note: Always follow manufacturer SRS safety procedures when handling pretensioners; do not attempt to fire or bench-test squibs with external voltage.

Likely causes

  • Open or corroded connector at the second-row right seat pretensioner
  • Damaged wiring in the seat harness where it flexes or is routed
  • Failed pretensioner squib (requires replacement)
  • Previous crash/repair left pretensioner disconnected or not replaced

Fault status

⚠️ Status
SRS control module detected abnormal condition in Second Row Right seat belt pretensioner deployment control circuit (open/short/high resistance or prior deployment).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2 hours

Similar codes

B0076 B0070 B0051 B0010 B0090
Repair manuals

Manual library for HUMMER

138

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HUMMER

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Code

B0075

LAND ROVER B — Body

second row, right seat belt pre-tensioner deployment control

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

Causes

  • Open circuit (broken wire or unplugged connector) in the pretensioner squib circuit
  • Short to ground or short to battery on the pretensioner wiring
  • High resistance in connector or wiring (corrosion, bent pins, water intrusion)
  • Failed pretensioner squib (internal break or short)
  • SRS (airbag) control module fault or poor ground at module
  • Previous deployment not replaced or improper repair after crash

Symptoms

  • SRS / airbag warning lamp illuminated on dash
  • Diagnostic trouble code B0075 stored in SRS control module
  • Seat belt pretensioner for second row right may not deploy in a crash
  • Possible disabled SRS functions or related restraint faults

What to check

  • Read and record all SRS codes and freeze frame using a capable scan tool
  • Check for deployment history/airbag deployment flag in module (previous crash)
  • Visual inspection of the second-row right seat connectors, harness, and seat anchorage for damage, corrosion, or disconnected plugs
  • Measure continuity/resistance of the pretensioner squib circuit at the squib connector and at the module connector
  • Inspect and verify proper grounds for the SRS module and seat circuits
  • Wiggle test wiring with connector connected while watching live data / resistance (carefully) for intermittent faults

Signal parameters

  • Expected pretensioner squib resistance (intact): typically about 0.5–3.0 ohms (manufacturer-specific).
  • Open circuit: very high / infinite ohms (no continuity).
  • Short to ground / short to battery: near 0 ohms or significantly lower than spec.
  • No sustained normal voltage should appear on the squib circuit except during deployment; module uses a high-current discharge during deployment — do not attempt to apply voltage.
  • SRS module monitors circuit continuity and resistance thresholds; refer to OEM spec for exact ohm target and tolerance.

Diagnostic algorithm

  1. Read codes: Connect an SRS-capable scan tool, record B0075 and any related codes, and note freeze frame/deployment flags.
  2. Check history: Verify whether vehicle has prior airbag deployment or repair. If previous deployment occurred, confirm pretensioner replacement and proper airbag system repairs.
  3. Safety prep: Disable SRS power—disconnect battery negative and wait at least 2–3 minutes (follow vehicle manufacturer specified wait time) before touching airbag/pretensioner connectors.
  4. Inspect connectors: Locate the second-row right seat pretensioner connector (under seat or at base), disconnect, and inspect pins for corrosion, bent pins, or push-out.
  5. Measure squib resistance: With battery disconnected, measure resistance across the pretensioner squib terminals at the connector. Compare to manufacturer spec (typical 0.5–3.0 Ω). If open or out of spec, replace pretensioner.
  6. Check harness continuity: Measure continuity from the pretensioner connector back to the SRS module connector. Repair any opens, shorts, or high-resistance sections; pay attention to areas that flex (seat tracks, movable harness).
  7. Inspect for shorts: Check for short to ground or battery by measuring resistance to chassis ground and to battery positive (with battery disconnected).
  8. Repair/replace: Replace damaged wiring, connectors, or the pretensioner squib as required. If module wiring is damaged, repair per good wiring practice and OEM SRS guidelines.
  9. Reconnect and reset: Reconnect battery, clear codes with scan tool, and run SRS self-tests. Confirm the SRS lamp extinguishes and no new B0075 reappears.
  10. Final verification: If available, command a system lamp test or run live data diagnostics per OEM procedures. If fault persists after repairs, evaluate SRS control module for proper operation (replacement only per OEM procedures).
  11. Note: Always follow manufacturer SRS safety procedures when handling pretensioners; do not attempt to fire or bench-test squibs with external voltage.

Likely causes

  • Open or corroded connector at the second-row right seat pretensioner
  • Damaged wiring in the seat harness where it flexes or is routed
  • Failed pretensioner squib (requires replacement)
  • Previous crash/repair left pretensioner disconnected or not replaced

Fault status

⚠️ Status
SRS control module detected abnormal condition in Second Row Right seat belt pretensioner deployment control circuit (open/short/high resistance or prior deployment).
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2 hours

Similar codes

B0076 B0070 B0051 B0010 B0090
320

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

LAND ROVER

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+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

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