PowertrainP0766

Caution

Severity: Caution - get it checked when you can

Shift Solenoid D Performance or Stuck Off

31 brands affected · Generic SAE J2012 description.

Key terms: SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This range normally covers the transmission control system, but some manufacturers use P07-P09 codes for unrelated functions (fuel pump control, air-mix motors, lighting or windows). Check the description before assuming it is a transmission fault.

2Common causes

Low or dirty transmission fluid
Faulty shift solenoid
Faulty speed sensor
Wiring or connector fault
Internal transmission wear

3Can I drive?

Caution · drive with care

If the transmission slips, jerks, will not shift, or a transmission temperature warning is on, stop driving and let it cool: continuing can cause expensive damage. If the code names a different system (for example the fuel pump), treat it on its own terms; a fuel-pump control failure can stall the car, so have it checked before driving further. Otherwise drive gently to a workshop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 31

Brand	Code	Description	System
Ashok Leyland CV	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
BAIC Motor	P0766	S4 solenoid Off stick Brand	Powertrain
BMW	P0766	Open circuit Brand	Powertrain
BYD	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Chery	P0766	Clutch 3 solenoid valve short to power Brand	Powertrain
Chrysler	P0766	shift solenoid D performance Brand	Powertrain
Daewoo	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
DFFS	P0766	Lost communication with micromotor Brand	Powertrain
DFFX	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
DFXK	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
EOBD	P0766	Prestasi solenoid gear 'D' terkatup Brand	Powertrain
Ford	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Geely	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
GM	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Great Wall	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Hafei	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Holden	P0766	Shift Solenoid Valve 4 Performance - Stuck Off Brand	Powertrain
Honda	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Hyundai	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Isuzu	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Land Rover	P0766	Shift solenoid D performance/stuck off Brand	Powertrain
Mazda	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Opel	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Peugeot	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Porsche	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Proton	P0766	Shift Solenoid D Performance or Stuck Off SAE	Powertrain
Saab	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
MG (SAIC)	P0766	Shift Solenoid D Performance/Stuck Off Brand	Powertrain
Subaru	P0766	Shift Solenoid D Malfunction Brand	Powertrain
Tata	P0766	37988 Shift Malfunction Brand	Powertrain
Toyota	P0766	Shift solenoid valve functional failure (S1) - stuck in the maximum pressure position (S1 maximum or SLC2 minimum) Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 5

These 7-character codes are manufacturer-specific variants of P0766 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P076600	Rpm sensor 'Clutch secondary side' has a malfunction. Brand	Powertrain
SsangYong	P076600	Unusual shifting - SLC2 max preesure Brand	Powertrain
Mercedes-Benz	P076613	Rpm sensor 'Clutch secondary side' has an open circuit. - circuit open Brand	Powertrain
Mercedes-Benz	P076664	Rpm sensor 'Clutch secondary side' has a malfunction. Signal plausibility failure. - signal plausibility failure Brand	Powertrain
Mercedes-Benz	P0766F0	Rpm sensor 'Clutch secondary side' has a malfunction. Pulse length out of range. Brand	Powertrain

6Related codes

Browse Pxxx codes or P076xx codes.