Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / B1C2B — Right side ABG squib low

B1C2B — Right side ABG squib low

Detailed page for trouble code B1C2B.

33,912codes
59brands
11,451generic
22,461specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

B1C2B

MITSUBISHI B — Body

Right side ABG squib low

Brand: MITSUBISHI
Type: B — Body
Views: UK: 19 EN: 29 RU: 25
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Short to ground in the right-side squib wiring or connector
  • Damaged or shorted squib (airbag inflator or seatbelt pretensioner) on the right side
  • Corroded or poorly connected squib connector
  • Wiring harness damage (pinch, chafe, or broken insulation) — common at door hinge, seat base, or B-pillar
  • Improper previous repairs or aftermarket accessories tied into the airbag circuit
  • Faulty airbag control module or internal wiring fault

Symptoms

  • SRS/AIRBAG warning lamp illuminated on the instrument panel
  • Possible disablement of right-side airbag or seatbelt pretensioner functions
  • Diagnostic trouble code B1C2B stored in the airbag/SRS module
  • Intermittent or permanent SRS warning depending on fault nature

What to check

  • Retrieve and record all SRS codes and freeze-frame data with a capable scan tool
  • Visually inspect right-side airbag/pretensioner connectors and wiring for damage, corrosion, or loose terminals (seat, B-pillar, door hinge areas as applicable)
  • Confirm battery voltage is stable before tests; follow proper SRS powerdown/disconnect procedure
  • With SRS connector(s) disconnected per manual, measure squib circuit resistance at the airbag module connector and at the squib connector
  • Check for continuity to ground from the squib circuit to identify short-to-ground
  • Check for related crash data or previous deployment history in module

Signal parameters

  • Squib circuit continuity: low resistance expected (refer to factory specification — typically a few ohms)
  • Short-to-ground: near 0 Ω between squib circuit and chassis ground indicates short
  • Open circuit: infinite resistance indicates broken wiring or disconnected squib
  • No sustained battery voltage should be present on the squib circuit during normal diagnostics — follow manufacturer test procedures

Diagnostic algorithm

  1. Read and record all SRS/airbag codes and vehicle history with a proper scan tool.
  2. Follow manufacturer battery disconnect procedure for SRS work (disconnect negative terminal and wait specified time) before touching connectors.
  3. Perform a careful visual inspection of right-side airbag/pretensioner harness, connectors, and routing (seat base, belt retractors, door hinge, B-pillar). Look for chafing, corrosion, or repair splices.
  4. With the harness disconnected from the module (per service manual), measure resistance of the right-side squib circuit at the module connector and at the squib connector. Compare readings to factory specification.
  5. Check for short-to-ground by measuring resistance between squib circuit and chassis ground. If near zero ohms, trace and repair short in harness.
  6. If wiring and connectors are good, replace the squib/pretensioner assembly and re-test. Always use manufacturer-approved parts.
  7. If replacement of squib does not clear the fault, test/inspect the airbag control module connector and consider module testing or replacement according to manufacturer guidance.
  8. After repairs, clear codes and perform a full SRS system verification with a scan tool, then road-test as required. Re-scan to confirm no reoccurrence.
  9. Document repairs and ensure all safety/airbag handling procedures were observed.

Likely causes

  • Wiring short to ground in right-side squib circuit (most common)
  • Failed squib/pretensioner on the right side
  • Corroded or loose connector at the squib or airbag control module
  • Damage from a prior impact or service work affecting the harness

Fault status

⚠️ Status
Right-side ABG (airbag/pretensioner) squib circuit low — SRS module detected abnormally low squib circuit condition; SRS warning lamp illuminated.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

B1C2A B1C1B B1C3B B1800 B1010
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

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .