EV Diagnostics
Source-backed diagnostic reference

P1687 EV diagnostic code

A/T FI Signal B High 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 High Input Source
  • BUICK: Driver 5 Line 7 Source
  • CADILLAC: Driver 5 Line 7 Source
  • CHEVY: Driver 5 Line 7 Source
  • CHRYSLER: No Cluster Bus Message Source
  • DODGE: No Cluster Bus Message Source
  • GM: Driver 5 Line 7 Source
  • GMC: Driver 5 Line 7 Source
  • HONDA: A/T FI Signal B High Input Source
  • INFINITI: A/T FI Signal B High Input Source
  • JEEP: No Cluster Bus Message Source
  • MAZDA: Metering Oil Pump Stepping Motor Cont Circuit Source
  • OLDSMOBILE: Driver 5 Line 7 Source
  • OTHER: Metering Oil Pump Stepping Motor Circuit Malfunction Source
  • PLYMOUTH: No Cluster Bus Message Source
  • PONTIAC: No Cluster Bus Message Source
  • SATURN: Driver 5 Line 7 Source

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