AutoCodes – Generic – P10D8

P10D8 Code - Charge Air Cooler Temperature Sensor 2 Circuit Erratic

Quick Answer

The Charge Air Cooler (CAC) temperature sensor 2 is a variable resistor. Common causes include Faulty Charge Air Cooler Outlet Temperature Sensor, Charge Air Cooler Outlet Temperature Sensor harness is open or shorted, Charge Air Cooler Outlet 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: P10D8 indicates Charge Air Cooler Temperature Sensor 2 Circuit Erratic.
Common causes: Common causes include Faulty Charge Air Cooler Outlet Temperature Sensor, Charge Air Cooler Outlet Temperature Sensor harness is open or shorted, Charge Air Cooler Outlet 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.

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Code Popularity 6,446

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 24, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P10D8 Description

The Charge Air Cooler (CAC) temperature sensor 2 is a variable resistor. The sensor is located at the CAC outlet before the air flow valve. Its signal is used by the ECM to measure the temperature of the intake air exiting the CAC. The Engine Control Module (ECM) supplies 5 V to the signal circuit and a ground for the low reference circuit. The ECM continuously monitors the sensor signal for an excessively high or low voltage, or for a start-up signal that is not in correlation with the intake air temperature (IAT) sensor 3 start-up signal and fuel temperature sensor. The Diagnostic Trouble Code (DTC) will be set when the CAC temperature sensor 2 signal is erratic.

OBDII Code P10D8 - Charge Air Cooler Temperature Sensor 2 Circuit Erratic - AutoCodes.com — P10D8 Code - Charge Air Cooler Temperature Sensor 2 Circuit Erratic

What does this mean?

What are the Possible Causes of the DTC P10D8?

Faulty Charge Air Cooler Outlet Temperature Sensor
Charge Air Cooler Outlet Temperature Sensor harness is open or shorted
Charge Air Cooler Outlet Temperature Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P10D8?

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 P10D8 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 P10D8 code?

Need more information on how to fix the P10D8 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P10D8 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P10D8 BMW — Valvetronic Relay Circuit High
P10D8 Buick — Charge Air Cooler Temperature Sensor 2 Circuit Erratic
P10D8 Cadillac — Charge Air Cooler Temperature Sensor 2 Circuit Erratic
P10D8 Chevrolet — Charge Air Cooler Temperature Sensor 2 Circuit Erratic
P10D8 GMC — Charge Air Cooler Temperature Sensor 2 Circuit Erratic
P10D8 MINI — Valvetronic Relay Circuit High

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P10D8 Code

1. What are the common symptoms of OBDII code P10D8?

- Common symptoms include rough idling, decreased engine performance, poor fuel efficiency, and potential stalling.

2. What does the OBDII code P10D8 indicate?

- The code P10D8 indicates an erratic signal from the Charge Air Cooler Temperature Sensor 2 circuit.

3. What are the possible causes of the P10D8 code?

- Possible causes include a faulty charge air cooler temperature sensor, wiring issues, poor electrical connections, or a malfunctioning Engine Control Module (ECM).

4. How can I diagnose the cause of the P10D8 code?

- Diagnose the code by inspecting the charge air cooler temperature sensor and its wiring for any signs of damage or corrosion. Check the connections and perform a thorough electrical test.

5. How can I repair the Charge Air Cooler Temperature Sensor 2 circuit erratic issue?

- Repair options may include replacing the charge air cooler temperature sensor, repairing or replacing damaged wiring, ensuring proper electrical connections, and resetting the fault codes.

6. Can a DIY enthusiast fix the P10D8 code issue?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to address the P10D8 code by following repair guides and utilizing diagnostic tools.

7. Is it safe to continue driving with the P10D8 code illuminated?

- It is not recommended to drive with the P10D8 code illuminated, as it can lead to further engine problems and potential damage if left unresolved.

8. How important is the Charge Air Cooler Temperature Sensor in vehicle operation?

- The Charge Air Cooler Temperature Sensor is crucial for monitoring the air intake temperature, ensuring optimal engine performance, fuel efficiency, and emissions control.

9. Can weather conditions affect the Charge Air Cooler Temperature Sensor's performance?

- Extreme weather conditions such as extreme heat or cold can impact the sensor's readings and potentially trigger the P10D8 code if the sensor malfunctions due to temperature changes.

10. How long does it typically take to repair the P10D8 code issue?

- The repair time for the P10D8 code can vary depending on the exact cause of the issue, but it may take anywhere from 1-3 hours for diagnosis and repair by a professional mechanic.