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VOLVO
SRS-0019
SRS-001A
SRS-001B

SRS-0019, SRS-001A, SRS-001B Volvo – SRS Side Airbag & Seat Belt Pretensioner Diagnostic Guide

Diagnostic Priority: High
Complexity Level: Advanced

Technical diagnostic guide for Volvo P1 S40 / V50 / C30 covering DTCs SRS-0019, SRS-001A, SRS-001B. Factory measurement tolerances and 1:1 Cloning solutions.

Vehicle

VOLVO

Codes

3 units

Analysis Type

Technical Expert

Status

Analyzed

Technical Analysis

REF: #812AB7

The fault code combination SRS-0019, SRS-001A, SRS-001B on Volvo P1 S40 / V50 / C30 points to a validated mechanical or sensor failure requiring systematic diagnostic verification.

Expected Symptoms

Red SRS/Airbag warning lamp illuminated permanently, causing MOT/inspection failure (DTCs: SRS-0019, SRS-001A, SRS-001B)
Instrument cluster warning "SRS Airbag Service Urgent"
Seatbelt reminder chime triggers erroneously for an unoccupied passenger seat

System Impact

Drivetrain
Engine Control
Emission Control

Potential Fault Sources

01Stored crash event lockup data in SRS module memory following airbag or pretensioner deployment (affecting circuit for SRS-0019, SRS-001A, SRS-001B)
02Open circuit or high contact resistance in steering wheel clock spring spiral cassette
03Defective passenger seat occupancy weight sensor mat in seat cushion (logged fault: SRS-0019)

Workflow / Methodology

01

Verify supply voltage and reference ground for SRS-0019, SRS-001A, SRS-001B with multimeter at key ON.

02

Measure firing circuit loop resistance at harness: normal 2.0–2.8 Ω (NEVER probe airbag inflator directly with multimeter).

03

Inspect seat wiring harness connectors under front seats for pin fretting or looseness.

04

OBD Tuning offers 1:1 Crash Data Reset and Complete Bench Cloning of SRS Airbag modules.

Live Data & Mätvärdestoleranser (Är/Bör-värden)

Fabriksgodkända referensvärden vid diagnos och live-avläsning

Mätvärdesblock
Parameter / SignalTestvillkorBör-värde (Normalt)Avvikelse / Varning
Bältessträckare Resistans20°C2.1 – 2.6 Ω> 3.8 Ω
Tändkretsresistans KrockkuddeTändning av / Ledningsmatta2.0 – 2.8 Ω> 4.2 Ω (Avbrott i rulle)
SRS SystemspänningTändning på12.2 – 14.4 V< 10.8 V

Assessment & Action Proposal

Technical Recommendation

Reparation av kablage under förarstol or 1:1 SRS-modulreset at OBD Tuning.

Need a deeper analysis? Use our advanced fault code analyzer to find likely connections and in-depth guidance.

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Vanliga frågor om dessa felkoder

Vad är den primära orsaken till felkoderna?

The fault code combination SRS-0019, SRS-001A, SRS-001B on Volvo P1 S40 / V50 / C30 points to a validated mechanical or sensor failure requiring systematic diagnostic verification.

Kan man köra vidare med tänd motorlampa / varningslampa?

Körning med aktiva felkoder kan leda till strypt motoreffekt (nödläge / Limp Home), blockerad partikelfilterregenerering eller följdskador på mekaniska komponenter. Felsökning bör genomföras omgående.

Hur åtgärdas kombinationen på säkrast sätt?

Reparation av kablage under förarstol or 1:1 SRS-modulreset at OBD Tuning.