PowertrainP1488

Caution

Severity: Caution - get it checked when you can

Auxiliary 5V Supply Output Too Low

12 brands affected · Description from GM data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
Control module fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

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 12

Brand	Code	Description	System
Chery	P1488	Secondary Air Injection Valve 2 (N320): Short to Plus Brand	Powertrain
Daewoo	P1488	Auxiliary 5V Supply Output Too Low Brand	Powertrain
DFXK	P1488	Secondary Air Injection Valve 2 (N320): Short to Plus Brand	Powertrain
EOBD	P1488	Lågtrycks-EGR-ventil Brand	Powertrain
Geely	P1488	Secondary Air Injection Valve 2 (N320): Short to Plus Brand	Powertrain
GM	P1488	Auxiliary 5V Supply Output Too Low Brand	Powertrain
Holden	P1488	Exhaust Gas Recirculation Valve 2 Brand	Powertrain
Isuzu	P1488	No description available	Powertrain
Land Rover	P1488	Exhaust muffler bypass control circuit Brand	Powertrain
Opel	P1488	Auxiliary 5V Supply Output Too Low Brand	Powertrain
Peugeot	P1488	No description available	Powertrain
Saab	P1488	Auxiliary 5V Supply Output Too 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.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P1488 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P148800	The absolute difference between the current throttle opened position learning and the average of the previous learnt values is too high Brand	Powertrain

6Related codes

Browse Pxxx codes or P148xx codes.