EV Diagnostics
Source-backed diagnostic reference

P1686 EV diagnostic code

A/T FI Signal B Low Input

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • ACURA: A/T FI Signal B Low Input Source
  • BUICK: Driver 5 Line 6 Source
  • CADILLAC: Driver 5 Line 6 Source
  • CHEVY: Driver 5 Line 6 Source
  • CHRYSLER: No SKIM Bus Message Received Source
  • DODGE: No SKIM Bus Message Received Source
  • GM: Driver 5 Line 6 Source
  • GMC: Driver 5 Line 6 Source
  • HONDA: A/T FI Signal B Low Input Source
  • INFINITI: A/T FI Signal B Low Input Source
  • JEEP: No SKIM Bus Message Received Source
  • MAZDA: Metering Oil Pump Stepping Motor Cont Circuit Source
  • OLDSMOBILE: Driver 5 Line 6 Source
  • OTHER: Metering Oil Pump Stepping Motor Circuit Malfunction Source
  • PLYMOUTH: No SKIM Bus Message Received Source
  • PONTIAC: No SKIM Bus Message Received Source
  • SATURN: Driver 5 Line 6 Source
  • VOLKSWAGEN: Control Unit Error Programming Source

Search and canonical URL

Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.