P00A0: Charge Air Cooler Temperature Sensor Circuit Bank 2

The charge air cooler temperature sensor for bank 2 (an NTC thermistor) measures the charge air temperature in the second charge-air path, for example on V engines with two charge air coolers. The engine control module uses it for the air mass calculation, boost control and component protection. For P00A0, this is the general circuit fault; low and high signals have their own codes. No manufacturer description naming this exact code was found. Bank 2 codes occur only on engines with two separate intake or charge-air paths, one per cylinder bank.

Low severity. Can I keep driving?Yes, you can normally keep driving and take it to a repair shop when convenient.

Bank 2 is the side without cylinder 1, so it only exists on V or boxer engines.

Symptoms

Check engine light on
Usually no noticeable symptoms
Emissions test or readiness check may fail

Most likely causes

Connector or wiring faulty
Sensor faulty
Supply or ground disturbed
Engine control module faulty

What to check, in order

Start with the simplest. You can tick off each step.

With the engine cold, compare the reading with the outside temperature
Check the connector
Measure the sensor's resistance against the manufacturer's specification
Check power and ground before replacing it

Good to know

Repair difficulty: easy
It affects emissions.

What each character of P00A0 means

P: Powertrain: engine and transmission
0: Generic code: same on every make
0: Subsystem depends on the code range
A0: Specific fault in that system

Frequently asked questions

Can I keep driving with code P00A0?

Yes, you can normally keep driving and take it to a repair shop when convenient.

What causes code P00A0?

The most common causes are: connector or wiring faulty; sensor faulty; supply or ground disturbed.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.