Fault code lookup

PowertrainP0978

Caution

Severity: Caution - get it checked when you can

Shift Solenoid C Control Circuit Range/Performance

29 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

  1. Low or dirty transmission fluid
  2. Faulty shift solenoid
  3. Faulty speed sensor
  4. Wiring or connector fault
  5. 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 29

BrandCodeDescriptionSystem
Ashok Leyland CVP0978Charging Switch. (Start.) Incorrect Or Intermittent Data BrandPowertrain
BAIC MotorP0978SLC3 solenoid valve implausible BrandPowertrain
BYDP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
CheryP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
ChryslerP0978Shift Solenoid 3 Control Circuit Range/Performance BrandPowertrain
DaewooP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
DFFSP0978Lost communication with ETC module BrandPowertrain
DFFXP0978Solenoid valve SLC3 fault BrandPowertrain
DFXKP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
EOBDP0978Krmilno vezje menjalnika 'C' obseg/zmogljivost BrandPowertrain
FiatP0978Shift solenoid 'C' Control circuit range/Performance BrandPowertrain
FordP0978Shift Solenoid C Control Circuit Range/Performance SAEPowertrain
GeelyP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
GMP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
Great WallP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
HafeiP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
HoldenP0978Shift Solenoid Valve 3 Control Circuit Performance BrandPowertrain
HyundaiP0978Shift Solenoid C Control Circuit Range/Performance SAEPowertrain
IsuzuP0978Shift Solenoid C Control Circuit Range/Performance SAEPowertrain
Land RoverP0978Shift solenoid C control - Circuit too high/low BrandPowertrain
MaseratiP0978shift solenoid C control circuit range/performance BrandPowertrain
MazdaP0978Shift Solenoid C Control Circuit Range/Performance SAEPowertrain
OpelP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
PeugeotP0978Shift Solenoid C Control Circuit Range/Performance SAEPowertrain
SaabP0978Shift Solenoid C Control Circuit Range/Performance BrandPowertrain
MG (SAIC)P0978Pressure Control Solenoid 'SLC1' Electrical Error BrandPowertrain
TataP0978Shift Solenoid 'C' Control Circuit Range/Performance BrandPowertrain
ToyotaP0978Linear solenoid valve feedback current blocked (SLC1) BrandPowertrain
VolkswagenP0978SAE: Shift Solenoid C Control Circuit: Range Performance BrandPowertrain

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 1

These 7-character codes are manufacturer-specific variants of P0978 and may be reported by some scan tools.

BrandCodeDescriptionSystem
SsangYongP097800Linear feedback current - stuck(SLC1) BrandPowertrain

6Related codes

Browse Pxxx codes or P097xx codes.

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