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Home / DTC / B1A35 — airbag control right implementation - short circuit ride of ignition

B1A35 — airbag control right implementation - short circuit ride of ignition

Detailed page for trouble code B1A35.

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22,461specific
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Code

B1A35

LAND ROVER B — Body

airbag control right implementation - short circuit ride of ignition

Brand: LAND ROVER
Type: B — Body
Views: UK: 18 EN: 34 RU: 19
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Damaged/chafed wiring in right-side airbag circuit causing contact with ignition-switched power
  • Corroded or loose connector pins at right-side airbag, sensor, or module connector
  • Short to ignition feed caused by incorrect or damaged aftermarket wiring or accessories
  • Failed right-side airbag module, squib, or pretensioner with internal short to ignition
  • Poor repair or previous collision repair wiring error (incorrect splice or routing)
  • Water ingress or contamination at connectors causing short

Symptoms

  • SRS/Airbag warning lamp illuminated or flashing on instrument cluster
  • Supplemental restraint system showing right-side airbag unavailable or disabled
  • Possible multiple SRS related DTCs stored (related to right-side implementation)
  • Intermittent warning lamp that changes with seat position or door movement
  • Vehicle may refuse stability of SRS until fault cleared (no deployment assurance)

What to check

  • Read and record all SRS codes and freeze-frame data with a capable SRS diagnostic scanner
  • Note when 12V ignition is present and if fault appears only with ignition ON
  • Visual inspection of right-side airbag wiring harness, connectors, seat harness, B‑pillar and door hinge grommets for chafing, damage or corrosion
  • Inspect for aftermarket wiring or recent repairs in the passenger/seat area
  • Check connector security and pin condition at right-side impact sensor, right-side squib/pretensioner and SRS control module
  • Measure resistance of squib/pretensioner circuit with safe procedures (see manufacturer spec) and check for unexpected continuity to battery + (ignition)

Signal parameters

  • Expected squib resistance (approximate): 0.5–5 ohms for inflator/squib circuits (consult vehicle-specific spec)
  • Open circuit: very high resistance/infinite (disconnected squib)
  • Short to battery/ignition: continuity between squib circuit and +12V with ignition OFF or presence of +12V on squib feed when it should be unpowered
  • Control module communication: CAN/SRS bus should be normal (no bus errors) — use scan tool to confirm

Diagnostic algorithm

  1. Safety first: follow manufacturer SRS safety procedures. Disconnect battery negative and wait required time before probing SRS circuits.
  2. Connect a manufacturer-capable SRS scan tool. Read and record all DTCs and freeze-frame data. Note any related codes.
  3. With ignition OFF and battery disconnected per safety procedure, visually inspect right-side harness routing (seat base, B‑pillar, door hinge area, under carpet). Look for chafing, pinching, broken insulation or exposed conductors.
  4. Inspect and unplug connectors for right-side impact sensor, right-seat wiring and SRS module. Check pins for corrosion, bent pins or signs of arcing.
  5. With battery reconnected only when allowed by safety steps and using proper backprobe technique, confirm presence/absence of ignition-switched +12V at the suspect circuit. Verify whether +12V is present when it should not be (indicating a short to ignition).
  6. Measure continuity/resistance of the right-side airbag squib/pretensioner circuit from module connector to component. Compare to manufacturer resistance spec. If resistance is very low to +12V or to ground unexpectedly, isolate by disconnecting sections until short disappears.
  7. If short is isolated to harness/connector, repair wiring or replace connector/sensor as needed. Replace damaged sections using correct SRS cable and crimping/labelling practices.
  8. If short remains at component (airbag inflator or pretensioner), replace the faulty component per manufacturer procedures.
  9. If wiring and components test OK but fault persists, evaluate SRS control module for internal fault; consider module programming/replacement only after all wiring/components verified.
  10. After repair, clear codes with scan tool, cycle ignition and verify no DTCs return. Perform any required SRS system tests or self-checks per manufacturer.
  11. Reconnect battery and perform final verification. Do not attempt deployment tests; rely on diagnostic tool and function checks.

Likely causes

  • Wire abrasion at seat base, B‑pillar, door hinge area or under carpet where harness flexes
  • Connector to right-side impact sensor or seat occupant detection harness corroded or pins pushed/bridged
  • Aftermarket seat heaters, amplifiers or other accessories tied into ignition-switched feed and contacting airbag wiring
  • Damaged connector boot allowing moisture and creating intermittent short

Fault status

⚠️ Status
SRS control module detected short circuit to ignition on right-side implementation circuit; right-side airbag/related device flagged and disabled until repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

B1A34 B1A36 B1A30 B1A3B B1A3C
160

Browse 160 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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Code

B1A35

MITSUBISHI B — Body

Transponder read error

Brand: MITSUBISHI
Type: B — Body
Views: UK: 22 EN: 35 RU: 31
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Damaged/chafed wiring in right-side airbag circuit causing contact with ignition-switched power
  • Corroded or loose connector pins at right-side airbag, sensor, or module connector
  • Short to ignition feed caused by incorrect or damaged aftermarket wiring or accessories
  • Failed right-side airbag module, squib, or pretensioner with internal short to ignition
  • Poor repair or previous collision repair wiring error (incorrect splice or routing)
  • Water ingress or contamination at connectors causing short

Symptoms

  • SRS/Airbag warning lamp illuminated or flashing on instrument cluster
  • Supplemental restraint system showing right-side airbag unavailable or disabled
  • Possible multiple SRS related DTCs stored (related to right-side implementation)
  • Intermittent warning lamp that changes with seat position or door movement
  • Vehicle may refuse stability of SRS until fault cleared (no deployment assurance)

What to check

  • Read and record all SRS codes and freeze-frame data with a capable SRS diagnostic scanner
  • Note when 12V ignition is present and if fault appears only with ignition ON
  • Visual inspection of right-side airbag wiring harness, connectors, seat harness, B‑pillar and door hinge grommets for chafing, damage or corrosion
  • Inspect for aftermarket wiring or recent repairs in the passenger/seat area
  • Check connector security and pin condition at right-side impact sensor, right-side squib/pretensioner and SRS control module
  • Measure resistance of squib/pretensioner circuit with safe procedures (see manufacturer spec) and check for unexpected continuity to battery + (ignition)

Signal parameters

  • Expected squib resistance (approximate): 0.5–5 ohms for inflator/squib circuits (consult vehicle-specific spec)
  • Open circuit: very high resistance/infinite (disconnected squib)
  • Short to battery/ignition: continuity between squib circuit and +12V with ignition OFF or presence of +12V on squib feed when it should be unpowered
  • Control module communication: CAN/SRS bus should be normal (no bus errors) — use scan tool to confirm

Diagnostic algorithm

  1. Safety first: follow manufacturer SRS safety procedures. Disconnect battery negative and wait required time before probing SRS circuits.
  2. Connect a manufacturer-capable SRS scan tool. Read and record all DTCs and freeze-frame data. Note any related codes.
  3. With ignition OFF and battery disconnected per safety procedure, visually inspect right-side harness routing (seat base, B‑pillar, door hinge area, under carpet). Look for chafing, pinching, broken insulation or exposed conductors.
  4. Inspect and unplug connectors for right-side impact sensor, right-seat wiring and SRS module. Check pins for corrosion, bent pins or signs of arcing.
  5. With battery reconnected only when allowed by safety steps and using proper backprobe technique, confirm presence/absence of ignition-switched +12V at the suspect circuit. Verify whether +12V is present when it should not be (indicating a short to ignition).
  6. Measure continuity/resistance of the right-side airbag squib/pretensioner circuit from module connector to component. Compare to manufacturer resistance spec. If resistance is very low to +12V or to ground unexpectedly, isolate by disconnecting sections until short disappears.
  7. If short is isolated to harness/connector, repair wiring or replace connector/sensor as needed. Replace damaged sections using correct SRS cable and crimping/labelling practices.
  8. If short remains at component (airbag inflator or pretensioner), replace the faulty component per manufacturer procedures.
  9. If wiring and components test OK but fault persists, evaluate SRS control module for internal fault; consider module programming/replacement only after all wiring/components verified.
  10. After repair, clear codes with scan tool, cycle ignition and verify no DTCs return. Perform any required SRS system tests or self-checks per manufacturer.
  11. Reconnect battery and perform final verification. Do not attempt deployment tests; rely on diagnostic tool and function checks.

Likely causes

  • Wire abrasion at seat base, B‑pillar, door hinge area or under carpet where harness flexes
  • Connector to right-side impact sensor or seat occupant detection harness corroded or pins pushed/bridged
  • Aftermarket seat heaters, amplifiers or other accessories tied into ignition-switched feed and contacting airbag wiring
  • Damaged connector boot allowing moisture and creating intermittent short

Fault status

⚠️ Status
SRS control module detected short circuit to ignition on right-side implementation circuit; right-side airbag/related device flagged and disabled until repaired.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

B1A34 B1A36 B1A30 B1A3B B1A3C
203

Browse 203 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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

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