PowertrainP0946

Caution

Severity: Caution - get it checked when you can

Hydraulic Pump Relay/Control Circuit Range/Performance

26 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 26

Brand	Code	Description	System
Ashok Leyland CV	P0946	Hydraulic Pump Relay/Control Circuit Range/Performance SAE	Powertrain
BAIC Motor	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
BYD	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Chery	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Daewoo	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
DFFS	P0946	Microphone fault Brand	Powertrain
DFFX	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
DFXK	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
EOBD	P0946	Hydraulpump relä/styrkrets område/prestanda Brand	Powertrain
Geely	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
GM	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Great Wall	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Hafei	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Holden	P0946	Transmission Hydraulics Oil Pump Relay Brand	Powertrain
Hyundai	P0946	Hydraulic Pump Relay/Control Circuit Range/Performance SAE	Powertrain
Isuzu	P0946	Hydraulic Pump Relay/Control Circuit Range/Performance SAE	Powertrain
Land Rover	P0946	Hydraulic pump relay - circuit range/performance Brand	Powertrain
Mitsubishi	P0946	ELC. Oil pump relay stuck ON Brand	Powertrain
Opel	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Peugeot	P0946	Hydraulic Pump Relay/Control Circuit Range/Performance SAE	Powertrain
Proton	P0946	ELC. Oil pump relay stuck ON Brand	Powertrain
Saab	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
MG (SAIC)	P0946	Motor Relay Brand	Powertrain
Tata	P0946	Hydraulic Pump Relay Circuit Range/Performance Brand	Powertrain
Toyota	P0946	Microphone fault Brand	Powertrain
Volkswagen	P0946	SAE: Hydraulic Pump Relay Circuit: Range Performance 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 4

These 7-character codes are manufacturer-specific variants of P0946 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P094600	Electromagnetic Oil Pump (EMOP) control: Electromagnetic Oil Pump (EMOP) supply voltage high Brand	Powertrain
SsangYong	P094611	Oil pump circuit short to ground Brand	Powertrain
SsangYong	P094612	Oil pump circuit short to battery (+) Brand	Powertrain
SsangYong	P094613	Oil pump open circuit Brand	Powertrain

6Related codes

Browse Pxxx codes or P094xx codes.