Code
B1430
MITSUBISHI
B — Body
FL side ABG squib short
Views:
UK: 10
EN: 12
RU: 16
AI status
Completed
Completed
100%
Causes
- Short to ground or battery positive on the FL airbag squib wiring
- Damaged or chafed wiring harness (pinched, rubbed, or cut)
- Corroded or contaminated airbag connector terminals
- Faulty or internally shorted FL airbag module/squib (inflator connector)
- Defective clock spring (if FL squib routed through steering column)
- Poor previous repair or incorrect connector reassembly
Symptoms
- Airbag/SRS warning light illuminated on instrument panel
- Related SRS functions (airbag deployment, seatbelt pretensioners) may be disabled
- Stored DTC B1430 in SRS memory
- Possible additional SRS-related codes or faults
- Vehicle may fail safety inspection due to illuminated SRS light
What to check
- Read and record all SRS-related codes and freeze-frame data with an OEM-capable scan tool
- Visually inspect the FL airbag connector and wiring harness for damage, corrosion, or contamination
- Inspect routing through the steering column, seat, B-pillar, and floor for chafing or pinching
- Check for signs of previous repairs or aftermarket accessories that may have disturbed the circuit
- Confirm battery voltage and ground integrity before performing electrical checks
- Follow OEM procedures for safe SRS component handling (battery disconnect and wait time) before disconnecting/repairing
Signal parameters
- Squib circuit resistance (ohms) — compare to OEM specification (typical low single-digit ohms)
- Continuity between squib terminals (should be within spec; no short to ground or battery)
- Voltage at squib connector with key ON and SRS system awake (use service manual guidance)
- Live fault flags and status bits from SRS control module via diagnostic tool
Diagnostic algorithm
- Use an OEM-compatible scan tool to read all SRS codes and freeze-frame data. Note any additional codes.
- Follow the manufacturer's SRS safety procedure: disable the SRS system by disconnecting the battery and waiting the specified time before touching airbag connectors or wiring.
- Perform a careful visual inspection of the FL airbag connector, harness, and routing. Look for corrosion, bent pins, broken wires, or signs of water entry.
- With SRS power disabled, measure resistance of the FL squib between its two terminals and compare to the service manual specification. Also check for unintended continuity between each squib terminal and chassis ground or battery positive (indicates a short).
- Wiggle test wiring and connectors while monitoring resistance or using the scan tool (with safety procedures) to locate intermittent shorts. Pay attention to harness sections that move (steering column, seat, or door areas).
- If connector or wiring faults are found, repair with OEM-grade parts and techniques (replace damaged wiring, pins, or connector housings). Replace the FL airbag module only if bench resistance tests and inspection indicate internal short; follow replacement and disposal rules for airbags.
- If wiring and airbag module test good but the fault persists, inspect/replace the clock spring (if applicable) and recheck.
- If all circuit components test within specification and fault remains, consider SRS control module fault and refer to module bench test/reprogramming procedures in the service manual.
- After repairs, reconnect battery, clear codes with the scan tool, and verify the SRS lamp extinguishes and the B1430 code does not return. Perform full system self-test per OEM procedure.
Likely causes
- Damaged wiring or connector between squib and SRS control module (short to ground or power)
- Contaminated/corroded connector terminals at the FL airbag
- Internal short in the FL airbag squib or inflator assembly
- Clock spring failure (if circuit passes through steering column)
- Intermittent harness damage from steering column movement or seat/door movement
Fault status
Status
SRS control module reports short circuit on front-left (FL) airbag squib circuit — low resistance/short detected; SRS fault present.
Repair difficulty: Hard
Diagnostic time: 1.0-3.0 hours
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