P1657 OBD Trouble Code
1 result found
| Type | Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled |
|---|---|
| Description | Skip Shift 1 To 4 Upshift System Control Circuit |
| Cause | Engine speed over 600 rpm, then the PCM detected the commanded state of the Upshift driver and the Actual state of the control circuit did not match, all conditions met for over 5 seconds |
Try also: https://www.obd-codes.com/p1657
