PowertrainP0073

Caution

Severity: Caution - get it checked when you can

Ambient Air Temperature Sensor Circuit High Input

37 brands affected · Generic SAE J2012 description.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, or stalls, stop safely and get professional help.

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 37

Brand	Code	Description	System
Ashok Leyland CV	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
BAIC Motor	P0073	AAT Short High Brand	Powertrain
Mercedes-Benz	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
BMW	P0073	Ambient Air Temperature Sensor Circuit High Input Brand	Powertrain
BYD	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Chery	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Daewoo	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
DFFS	P0073	Torque converter control slip Brand	Powertrain
DFFX	P0073	Ambient air TEMP. sensor high Brand	Powertrain
DFXK	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
EOBD	P0073	Omgivelsestemperatursensor krets 'A' høy Brand	Powertrain
Geely	P0073	Ambient air TEMP. sensor high Brand	Powertrain
GM	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
Great Wall	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Hafei	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Holden	P0073	Ambient Air Temperature Sensor Circuit High Voltage Brand	Powertrain
Honda	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Hyundai	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Isuzu	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Land Rover	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Maserati	P0073	Ambient air temperature sensor circuit high Brand	Powertrain
Mitsubishi	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Nissan	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Opel	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
Peugeot	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Porsche	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Proton	P0073	Ambient air TEMP. sensor high Brand	Powertrain
Saab	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
MG (SAIC)	P0073	Ambient Sensor Short to ground Brand	Powertrain
Smart	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Sprinter	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Subaru	P0073	Ambient Air Temperature Sensor Circuit High Input SAE	Powertrain
Suzuki	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
SWM Motor	P0073	Environmental temperature sensor circuit high voltage or open circuit Brand	Powertrain
Tata	P0073	Ambient Air Temperature Sensor Circuit High Brand	Powertrain
Toyota	P0073	Ambient temperature sensor circuit high voltage or circuit open Brand	Powertrain
Volkswagen	P0073	Sensor for ambient air temperature (G17): signal too high 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 3

These 7-character codes are manufacturer-specific variants of P0073 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P007300	Der Außentemperatursensor hat Kurzschluss nach Plus. Brand	Powertrain
Mercedes-Benz	P007301	Der Außentemperatursensor hat Kurzschluss nach Plus. Es liegt ein allgemeiner elektrischer Fehler vor. Brand	Powertrain
Mercedes-Benz	P007385	Der Außentemperatursensor hat Kurzschluss nach Plus. Es liegt ein Signal oberhalb des zulässigen Grenzwertes. Brand	Powertrain

6Related codes

Browse Pxxx codes or P007xx codes.