PowertrainP05E9

Serious

Severity: Serious - have it checked soon

Engine oil bypass valve control circuit low

5 brands affected · Description from Toyota data.

Key terms: Powertrain: engine, transmission and emissions

Safety: This code relates to engine oil pressure or oil level. Low oil pressure can destroy the engine within minutes.

1What it means in plain English

This range covers vehicle speed, idle and oil-pressure control, charging-system voltage, and brake-switch circuits.

2Common causes

Carbon build-up in the throttle body
Faulty idle air control valve
Faulty vehicle speed sensor
Faulty charging system or weak battery
Wiring or connector fault

3Can I drive?

Serious · drive with care

Stop the engine as soon as it is safe and do not drive until it has been checked. Low oil pressure or a low oil level can destroy the engine within minutes.

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 5

Brand	Code	Description	System
Ashok Leyland CV	P05E9	No description available	Powertrain
EOBD	P05E9	Motorolie-bypassventil-styrekreds lav Brand	Powertrain
Isuzu	P05E9	No description available	Powertrain
Land Rover	P05E9	Engine Oil Bypass Valve Control Circuit Low Brand	Powertrain
Toyota	P05E9	Engine oil bypass valve control circuit low 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.

5Related codes

Browse Pxxx codes or P05Exx codes.