System: Powertrain (P-Code)
SAE Standard (Generic)
Family: Restraint Deployment Signal Circuit
Code P05BA: Restraint Deployment Signal Circuit High
Diagnostic & Technical Explanation
Code P05BA (Restraint Deployment Signal Circuit High) sets when the ECM's restraint-deployment input circuit from the airbag control module reports an open, shorted, or active-deployment condition, used to trigger fuel shutoff and hazard-lamp activation after a crash. Causes are a corroded connector in the interface harness, chafed wiring between the airbag module and ECM, or an actual prior deployment event that has not been serviced/reset.
First-listed procedure
Rank #1
Inspect restraint interface connector at the ECM
Professional Required
This is the first procedure in the authored
consideration order, not a measured cause likelihood. Execute it only when its prerequisites
and diagnostic findings support it. Its cost and labor estimates (where known), the step-by-step procedure and the
remaining 2 procedure(s) are in the licensed dataset. Ordering context.
Full family: Restraint Deployment Signal Circuit
What this page does not show
This page publishes the fault mechanism and the code index. The licensed dataset adds, for
every one of the 15,886 codes, the full authored repair set (56,729 procedures in total)
with the fields deliberately withheld here:
- Procedures 2..n after the first-listed procedure
- Aftermarket parts cost ranges in USD (
est_parts_cost_min/max_usd)
- Professional labor-hour estimates (
est_labor_hours)
- Step-by-step diagnostic and repair instructions
- Replacement-part mappings and catalog lookups
- 6,637 manufacturer-specific OEM codes across 32 makes ($149 tier)