EV Diagnostics
Source-backed diagnostic reference

P1657 EV diagnostic code

1-4 Upshift Solenoid Control Circuit

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: 1-4 Upshift Solenoid Control Circuit Source
  • CADILLAC: 1-4 Upshift Solenoid Control Circuit Source
  • CHEVY: 1-4 Upshift Solenoid Control Circuit Source
  • FORD: CAN Link Chip Malfunction Source
  • GM: 1 4 Upshift Solenoid Control Circuit Source
  • GMC: 1 4 Upshift Solenoid Control Circuit Source
  • LINCOLN: CAN Link Chip Malfunction Source
  • MERCURY: CAN Link Chip Malfunction Source
  • OLDSMOBILE: 1-4 Upshift Solenoid Control Circuit Source
  • SATURN: 1-4 Upshift Solenoid Control Circuit Source
  • VOLKSWAGEN: A/C Clutch Relays Circuit Short To B+ Source

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