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Home / DTC / B1932 — battery circuit High resistance driver airbag circuit or open circuit

B1932 — battery circuit High resistance driver airbag circuit or open circuit

Detailed page for trouble code B1932.

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Code

B1932

LAND ROVER B — Body

battery circuit High resistance driver airbag circuit or open circuit

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

Causes

  • Corroded or loose battery/power or ground connections to the SRS system
  • Damaged wiring or chafed insulation in the driver airbag circuit
  • Faulty or intermittent clock spring (steering wheel spiral cable)
  • Poor connector contact at steering column, airbag module, or SRS unit
  • Open or high-resistance squib (airbag) or associated connector
  • Faulty airbag module or SRS control module

Symptoms

  • SRS/airbag warning lamp illuminated at startup
  • Driver airbag disabled or SRS warning active in instrument cluster
  • Stored DTC B1932 in SRS control module and possible related SRS codes
  • Possible intermittent airbag light if resistance is marginal
  • Vehicle may log related communication or sensor faults

What to check

  • Read and record all SRS codes and freeze-frame data with a capable diagnostic scanner
  • Verify battery voltage (12.4–12.8 V at rest); retest with engine running (>13 V) to rule out low supply issues
  • Visually inspect steering column, clock spring area, and driver airbag connector for corrosion, damage, or loose pins
  • Inspect wiring harness routing for chafing, pinched wires, or signs of repair near steering column and under dash
  • Check SRS unit grounds and battery feed connections for tightness and corrosion
  • Perform resistance/continuity checks of the driver airbag circuit with SRS power disabled per manufacturer procedure

Signal parameters

  • Battery/supply voltage at SRS module: ~12–14 V (engine running)
  • Driver airbag (squib) resistance: typically low (single-digit ohms). Expect continuity; a reading significantly above manufacturer spec or open/OL indicates high resistance/open
  • Open-circuit indication: infinite/OL on ohmmeter across squib terminals
  • Short-to-ground indication: near 0 Ω between circuit and chassis ground
  • Intermittent faults may show fluctuating resistance or intermittent DTC set/clear events

Diagnostic algorithm

  1. Safety first: follow Land Rover procedures to disable the SRS (disconnect battery and observe required wait time) before probing connectors or removing components
  2. Scan and record SRS codes. Note any additional codes and clear codes, then attempt to re-create and re-scan to confirm persistence.
  3. Verify battery and charging system voltage. Restore normal battery condition before diagnosing resistance issues.
  4. Perform visual inspection of driver airbag connector, steering column, clock spring area, and under-dash harness for damage, corrosion, or loose pins.
  5. With SRS power removed per manual, measure resistance/continuity across the driver airbag squib connector at the airbag module and at the steering wheel connector. Compare to manufacturer spec (expect low ohms).
  6. If resistance is high or open at steering wheel connector, remove and inspect clock spring; check continuity through clock spring. Replace clock spring if intermittent/high resistance.
  7. If high resistance is found in harness segments, trace and repair wiring (repair to OEM methods, replace damaged sections, crimp/solder and insulate as required).
  8. Inspect and clean all connectors including pin ends; repair corroded connectors or replace connectors/retainers as required.
  9. If squib itself shows out-of-spec resistance (open or much higher than spec) replace the driver airbag module.
  10. Check SRS control module power and ground circuits; repair poor grounds or power feeds.
  11. After repairs, clear codes, reconnect battery per procedure, and perform SRS system relearn/initialization if required by manufacturer. Verify that the SRS lamp extinguishes and no related codes return.
  12. Note: Always follow manufacturer safety procedures when working on SRS components; improper handling can cause injury or further faults.

Likely causes

  • Corroded/contaminated steering wheel connector or airbag connector causing increased resistance
  • Worn/faulty clock spring causing intermittent/ high-resistance contact to driver squib
  • Broken/chafed harness in steering column or under-dash causing an open or high resistance
  • Loose SRS unit ground or battery feed connection
  • Failed driver airbag squib (open or internally high resistance)

Fault status

⚠️ Status
SRS fault: driver airbag circuit high resistance or open detected (B1932). Airbag warning lamp illuminated; driver squib circuit requires inspection and repair.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

B1930 B1931 B1933 B1920 B1900
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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