EV Diagnostics
Source-backed diagnostic reference

P1691 EV diagnostic code

Coolant Gage Circuit Low Voltage

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

  • BUICK: Coolant Gage Circuit Low Voltage Source
  • CADILLAC: Coolant Gage Circuit Low Voltage Source
  • CHEVY: Coolant Gage Circuit Low Voltage Source
  • CHRYSLER: Fuel Injection Pump Controller Calibration Failure Source
  • DODGE: Fuel Injection Pump Controller Calibration Failure Source
  • GM: Coolant Gage Circuit Low Voltage Source
  • GMC: Coolant Gage Circuit Low Voltage Source
  • JEEP: Fuel Injection Pump Controller Calibration Failure Source
  • MAZDA: Turbo Pressure Control Solenoid Circuit Source
  • OLDSMOBILE: Coolant Gauge Circuit Low Voltage Source
  • OTHER: Turbo Pressure Control Solenoid Circuit Malfunction Source
  • PLYMOUTH: Fuel Injection Pump Controller Calibration Failure Source
  • PONTIAC: Fuel Injection Pump Controller Calibration Failure Source
  • SATURN: Coolant Gage Circuit Low Voltage Source
  • VOLKSWAGEN: MIL Open Circuit Source

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