P00A1 OBD-II: Charge Air Cooler Temperature Sensor Circuit

P00A1 Severity

Moderate

Will P00A1 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

Schedule Diagnosis

What causes OBD-II fault code P00A1?

The Charge Air Cooler Temperature Sensors tell the engine control module (PCM) the temperature of the air going into an out of the charge air cooler assembly. The Charge Air Cooler Assembly cools the air coming out of the turbocharger before the air goes into the engine. If the PCM detects an incorrect signal from the Charge Air Cooler Sensor, the PCM will set code P00A1.

Need a P00A1 diagnosis? Trust our experts.

RepairPal Certified shops provide expert diagnostics and repairs with transparent upfront pricing and a minimum 12-month or 12,000-mile warranty on all services.
30 Certified Locations
Shop Image

Tuffy Tire & Auto Service Center - Grandview

4.7
(81)
2.39 mi
1524 W 5th Ave
Columbus, OH
Closed
Opens 8:00 AM Wed
Call
Shop Image

Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Closed
Opens 9:00 AM Wed
Call
Shop Image

All In Auto Service

4.9
(22)
6.56 mi
5200 Fisher Road
Columbus, OH
Closed
Opens 8:00 AM Wed
Call
Shop Image

Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Closed
Opens 7:30 AM Wed
Call
See All 30 Locations

OBD II Fault Code

  • OBD II P00A1

OBD-II Code Powertrain Control Module (PCM) failure is defined as a Charge Air Cooler Temperature Sensor Circuit

The Charge Air Cooler Temperature Sensors tell the engine control module (PCM) the temperature of the air going into an out of the charge air cooler assembly. The Charge Air Cooler Assembly cools the air coming out of the turbocharger before the air goes into the engine. If the PCM detects an incorrect signal from the Charge Air Cooler Sensor, the PCM will set code P00A1.

Common Problems That Trigger the P00A1 Code

  • Charge air temperature failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue
RepairPal Car Genius

Ask our experts about P00A1.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts