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Home / DTC / B1613 — PS preten.active circuit short

B1613 — PS preten.active circuit short

Detailed page for trouble code B1613.

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Code

B1613

MITSUBISHI B — Body

PS preten.active circuit short

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

Causes

  • Damaged or chafed wiring harness to passenger pretensioner
  • Corroded, loose, or bent connector pins at pretensioner or SRS module
  • Internal short in the pretensioner squib (degraded coil)
  • Short to ground or battery voltage in harness (pinched wire, contact with body)
  • Faulty SRS (airbag) control module or internal driver circuit
  • Aftermarket seat replacement or incorrect re‑installation of seat connectors

Symptoms

  • SRS / airbag warning lamp illuminated or flashing
  • Passenger pretensioner disabled or not armed
  • Possible inability to clear DTCs or repeated return of code after reset
  • Vehicle may fail SRS self-test or safety inspection
  • No noticeable change to engine/driving, but airbag system compromise

What to check

  • Read stored SRS codes and freeze frame with a compatible scan tool; record any additional SRS or network codes
  • Perform a visual inspection of seat area wiring and connectors for damage, corrosion, loose pins, or aftermarket modifications
  • Inspect connector at the pretensioner (under seat) and at the SRS control module for bent pins or water presence
  • Measure pretensioner squib resistance with a multimeter (power disconnected) and compare to manufacturer spec
  • Check continuity of harness to SRS module and for short to ground or battery with ignition off and battery disconnected
  • Verify vehicle grounding points and battery condition

Signal parameters

  • Nominal squib (pretensioner) resistance typically low — often in the range of ~0.7–3.0 Ω depending on model (consult Mitsubishi spec)
  • Open-circuit = very high/OL ohms (indicates broken wiring or disconnected squib)
  • Short-to-ground/short-to-battery indicated by near-zero ohms or abnormal voltage on squib circuit while powered
  • SRS system supply voltage ~12 V; driver outputs are pulsed high-current during deployment (do not attempt to energize)

Diagnostic algorithm

  1. Safety first: disable battery negative terminal and wait the manufacturer-specified interval (usually several minutes) before working on SRS circuits. Use insulated tools and SRS-safe procedures.
  2. Use an OEM-capable scan tool to read B1613 and any related SRS codes; note freeze-frame data and any module comms errors.
  3. Visually inspect passenger seat area, seatbelt pretensioner connector, under-seat wiring looms, and seat slides for chafing, pinched wires, or corrosion.
  4. With battery disconnected, measure resistance of the pretensioner squib at the connector. Compare to factory specification. An open or very high value indicates broken/disconnected circuit; a near-zero value may indicate short.
  5. Perform continuity checks from squib connector pins back to the SRS control module pins to identify wiring opens or shorts to chassis/battery. Isolate sections by disconnecting intermediate connectors.
  6. If a short is suspected, disconnect the pretensioner connector and re-check resistance/short to determine if the fault is in the harness or the pretensioner itself.
  7. Inspect and repair any damaged wiring, corrosion, or connector terminals. Replace the pretensioner assembly if internal short or deployment damage is confirmed.
  8. If wiring and pretensioner test OK, test or substitute the SRS control module (only with proper diagnostic equipment and procedures) as module driver failure is less common.
  9. After repairs, clear codes with scan tool and perform SRS system self-test. Re-scan to ensure B1613 does not return and verify no other SRS faults are present.
  10. If uncertain or any deployment repairs are required, refer to Mitsubishi service manual and consider qualified SRS technician for repair.

Likely causes

  • Wire insulation worn where harness passes under seat causing short to chassis
  • Connector terminal corrosion from water ingress or contaminants
  • Pretensioner has been partially deployed or internally failed, reducing coil resistance
  • Connector mis-mated after seat removal or service
  • SRS module output driver fault

Fault status

⚠️ Status
Passenger seat belt pretensioner circuit short detected — SRS control unit reports abnormal electrical condition; system may disable pretensioner and illuminate SRS warning lamp.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

Similar codes

B1601 B1610 B1614 B1620 B1651
406

Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MITSUBISHI

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Code

B1613

Other B — Body

Wiper Rear Mode Select Switch Circuit Short To Battery

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

Causes

  • Damaged or chafed wiring harness to passenger pretensioner
  • Corroded, loose, or bent connector pins at pretensioner or SRS module
  • Internal short in the pretensioner squib (degraded coil)
  • Short to ground or battery voltage in harness (pinched wire, contact with body)
  • Faulty SRS (airbag) control module or internal driver circuit
  • Aftermarket seat replacement or incorrect re‑installation of seat connectors

Symptoms

  • SRS / airbag warning lamp illuminated or flashing
  • Passenger pretensioner disabled or not armed
  • Possible inability to clear DTCs or repeated return of code after reset
  • Vehicle may fail SRS self-test or safety inspection
  • No noticeable change to engine/driving, but airbag system compromise

What to check

  • Read stored SRS codes and freeze frame with a compatible scan tool; record any additional SRS or network codes
  • Perform a visual inspection of seat area wiring and connectors for damage, corrosion, loose pins, or aftermarket modifications
  • Inspect connector at the pretensioner (under seat) and at the SRS control module for bent pins or water presence
  • Measure pretensioner squib resistance with a multimeter (power disconnected) and compare to manufacturer spec
  • Check continuity of harness to SRS module and for short to ground or battery with ignition off and battery disconnected
  • Verify vehicle grounding points and battery condition

Signal parameters

  • Nominal squib (pretensioner) resistance typically low — often in the range of ~0.7–3.0 Ω depending on model (consult Mitsubishi spec)
  • Open-circuit = very high/OL ohms (indicates broken wiring or disconnected squib)
  • Short-to-ground/short-to-battery indicated by near-zero ohms or abnormal voltage on squib circuit while powered
  • SRS system supply voltage ~12 V; driver outputs are pulsed high-current during deployment (do not attempt to energize)

Diagnostic algorithm

  1. Safety first: disable battery negative terminal and wait the manufacturer-specified interval (usually several minutes) before working on SRS circuits. Use insulated tools and SRS-safe procedures.
  2. Use an OEM-capable scan tool to read B1613 and any related SRS codes; note freeze-frame data and any module comms errors.
  3. Visually inspect passenger seat area, seatbelt pretensioner connector, under-seat wiring looms, and seat slides for chafing, pinched wires, or corrosion.
  4. With battery disconnected, measure resistance of the pretensioner squib at the connector. Compare to factory specification. An open or very high value indicates broken/disconnected circuit; a near-zero value may indicate short.
  5. Perform continuity checks from squib connector pins back to the SRS control module pins to identify wiring opens or shorts to chassis/battery. Isolate sections by disconnecting intermediate connectors.
  6. If a short is suspected, disconnect the pretensioner connector and re-check resistance/short to determine if the fault is in the harness or the pretensioner itself.
  7. Inspect and repair any damaged wiring, corrosion, or connector terminals. Replace the pretensioner assembly if internal short or deployment damage is confirmed.
  8. If wiring and pretensioner test OK, test or substitute the SRS control module (only with proper diagnostic equipment and procedures) as module driver failure is less common.
  9. After repairs, clear codes with scan tool and perform SRS system self-test. Re-scan to ensure B1613 does not return and verify no other SRS faults are present.
  10. If uncertain or any deployment repairs are required, refer to Mitsubishi service manual and consider qualified SRS technician for repair.

Likely causes

  • Wire insulation worn where harness passes under seat causing short to chassis
  • Connector terminal corrosion from water ingress or contaminants
  • Pretensioner has been partially deployed or internally failed, reducing coil resistance
  • Connector mis-mated after seat removal or service
  • SRS module output driver fault

Fault status

⚠️ Status
Passenger seat belt pretensioner circuit short detected — SRS control unit reports abnormal electrical condition; system may disable pretensioner and illuminate SRS warning lamp.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 3.0 hours

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B1601 B1610 B1614 B1620 B1651
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