P0070 GMC Code - Ambient Air Temperature Sensor Circuit
Quick Answer
The Engine Control Module (ECM) monitors the ambient air temperature sensor with a low reference circuit and signal circuit. Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0070 GMC indicates Ambient Air Temperature Sensor Circuit.
- Common causes
- Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient Air Temperature Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0070 GMC Description
What are the Possible Causes of the DTC P0070 GMC?
- Faulty Ambient Air Temperature Sensor
- Ambient Air Temperature Sensor harness is open or shorted
- Ambient Air Temperature Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0070 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0070 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0070 GMC code?
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Information for Specific GMC Models
- P0070 2014 GMC Sierra — Ambient Air Temperature Sensor Circuit
- P0070 2015 GMC Sierra — Ambient Air Temperature Sensor Circuit
- P0070 2016 GMC Sierra — Ambient Air Temperature Sensor Circuit
- P0070 2017 GMC Sierra — Ambient Air Temperature Sensor Circuit
- P0070 2018 GMC Sierra — Ambient Air Temperature Sensor Circuit
Frequently Asked Questions about P0070 GMC Code
1. What are the common symptoms of an Ambient Air Temperature Sensor Circuit issue (P0070) in a GMC vehicle?
- Common symptoms include inaccurate temperature readings on the dashboard, poor fuel efficiency, and issues with the HVAC system.
2. What are the possible causes of OBDII code P0070 in a GMC vehicle?
- The code P0070 is typically triggered by a faulty ambient air temperature sensor, damaged wiring or connectors, or issues with the sensor circuit.
3. How can I diagnose an Ambient Air Temperature Sensor Circuit problem in my GMC vehicle?
- To diagnose P0070, you can use an OBDII scanner to read the code, visually inspect the sensor and wiring for any damage, and perform a voltage test on the sensor.
4. Can a faulty ambient air temperature sensor cause other problems in my GMC vehicle?
- Yes, a faulty sensor can cause issues with the vehicle's fuel mixture, air conditioning system, and overall engine performance.
5. What are some repair tips for fixing an Ambient Air Temperature Sensor Circuit issue in a GMC vehicle?
- Repair tips include checking and replacing the ambient air temperature sensor, repairing any damaged wiring or connectors, and clearing the OBDII trouble code.
6. Is it safe to drive my GMC vehicle with the P0070 code triggered?
- It is generally safe to drive with a P0070 code, but it is recommended to address the issue promptly to prevent potential fuel efficiency and performance issues.
7. Can I reset the OBDII code P0070 in my GMC vehicle without fixing the underlying problem?
- While you can reset the code using an OBDII scanner, it is important to address the root cause of the issue to prevent the code from reoccurring.
8. How much does it cost to repair an Ambient Air Temperature Sensor Circuit problem in a GMC vehicle?
- The cost of repair can vary depending on the extent of the issue, but it typically involves replacing the sensor or repairing the wiring, with costs ranging from $50 to $200.
9. Are there any recalls related to the OBDII code P0070 in GMC vehicles?
- It is recommended to check with your local GMC dealership or visit the NHTSA website to see if there are any recalls related to the P0070 code in your specific vehicle model.
10. Can I replace the ambient air temperature sensor in my GMC vehicle myself?
- Yes, the ambient air temperature sensor is typically a relatively easy part to replace and can often be done by following the vehicle's service manual or online guides.
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