OBD Guide
ENFRDEESPT

P0070

Ambient Air Temperature Sensor Circuit A

P0070 is an OBD-II diagnostic trouble code meaning: Ambient Air Temperature Sensor Circuit A. Common causes: ambient temperature sensor malfunction, broken or damaged wiring to the sensor. Estimated repair cost: $6–44.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–44 (est.)

Symptoms

  • Incorrect outside temperature readings on the dashboard
  • Incorrect operation of the air conditioning system
  • Check Engine Light Illuminated
  • Display constant temperature -40°C or other fixed value
  • Problems with automatic climate control

Causes

  • Ambient temperature sensor malfunction
  • Broken or damaged wiring to the sensor
  • Short circuit in the sensor circuit
  • Corrosion or oxidation of connector contacts
  • Mechanical damage to the sensor
  • Malfunction of the engine control unit (rare)

How to Fix

  1. Connect the diagnostic scanner and read the fault codes
  2. Check the ambient temperature sensor readings in real time
  3. Visually inspect the sensor for mechanical damage
  4. Check the condition of the sensor connector and clean the contacts from corrosion
  5. Measure the resistance of the sensor with a multimeter and compare with the technical specifications
  6. Check the integrity of the wiring from the sensor to the ECU
  7. If necessary, replace the ambient temperature sensor
  8. Clear error codes and test drive to verify troubleshooting

Related codes

P0071P0072P0073P0074

Error P0070 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0070 code mean?

P0070 is an OBD-II diagnostic trouble code that indicates: Ambient Air Temperature Sensor Circuit A

What causes a P0070 error code?

The most common causes of P0070 include: Ambient temperature sensor malfunction; Broken or damaged wiring to the sensor; Short circuit in the sensor circuit; Corrosion or oxidation of connector contacts.

How do I fix a P0070 diagnostic trouble code?

To fix P0070: Connect the diagnostic scanner and read the fault codes. Check the ambient temperature sensor readings in real time. Visually inspect the sensor for mechanical damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0070?

Yes, but get it checked soon

How much does it cost to fix P0070?

The estimated repair cost for P0070 is $6–44. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat