Fault Family
System: Powertrain (P-Codes)
2 SAE Codes
Fuel Injector Control Module Circuit
Diagnostic & Technical Explanation
Code P0611 (Fuel Injector Control Module Performance) sets when the ECM detects a performance fault or relay-control problem with a standalone fuel injector control module (a separate high-current driver box used on some diesel/GDI platforms), distinct from an internal ECM injector-drive channel. Causes are a failed driver module, a bad power relay for the module, or damaged wiring/connector at the module.
These 2 diagnostic trouble codes share one
detection mechanism and one repair path, which is why MechanicDB groups them into a single
authored fault family rather than repeating the same explanation 2 times.
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)