B1056critical severityBody
Side Air Bag Module (Driver Side) Circuit Malfunction
on 2003 Infiniti FX45 4.5L V8 · AWD
What this code means
The SRS unit detects a fault in the driver side airbag module circuit. No direct OBD P-code equivalent exists for this manufacturer-specific code.
Symptoms
- Airbag warning light on
- Driver side airbag disabled
- Fault stored in SRS memory
Common causes
- Open or shorted side airbag wiring
- Loose seat connector
- Faulty side airbag squib
- Corroded connector pins
Diagnostic steps
- Scan SRS for B1056
- Inspect driver seat airbag connector
- Measure squib circuit resistance
- Repair wiring or replace side airbag
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
SHOP FAVORITEShop-grade tablet~$300
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open
B0012
Driver Side Airbag Deployment Circuit Short to Ground
B0013
Driver Side Airbag Deployment Circuit Short to Battery