P16D7 Acura Code - PCM Internal F-CAN Communication Circuit Malfunction
Quick Answer
The Controller Area Network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (CANH and CANL). Common causes include Controller Area Network (CAN) Communication, Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted. 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
- P16D7 Acura indicates PCM Internal F-CAN Communication Circuit Malfunction.
- Common causes
- Common causes include Controller Area Network (CAN) Communication, Faulty Powertrain Control Module (PCM), Powertrain Control Module (PCM) harness is open or shorted.
- 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 P16D7 Acura Description
When F-CAN communication between the FI CPU and the CVT CPU inside the Powertrain Control Module (PCM) is abnormal and F-CAN communication is interrupted for a specified time, a malfunction is detected and a DTC is stored.
What are the Possible Causes of the DTC P16D7 Acura?
- Controller Area Network (CAN) Communication
- Faulty Powertrain Control Module (PCM)
- Powertrain Control Module (PCM) harness is open or shorted
- Powertrain Control Module (PCM) circuit poor electrical connection
How to Fix the DTC P16D7 Acura?
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 P16D7 Acura 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.
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Frequently Asked Questions about P16D7 Acura Code
1. What does the OBDII code P16D7 on an Acura mean?
P16D7 indicates a PCM (Powertrain Control Module) internal F-CAN communication circuit malfunction, meaning the PCM is having trouble communicating over the F-CAN network.
2. What are common symptoms of the P16D7 code in an Acura?
Symptoms may include the check engine light turning on, reduced engine performance, transmission shifting issues, or failure of certain electronic systems like the traction control or ABS.
3. What causes the P16D7 code to appear on an Acura?
The code is typically caused by a faulty PCM, wiring issues in the F-CAN circuit, or an internal communication problem within the PCM itself.
4. Can I drive my Acura with the P16D7 code?
While the car may still drive, it is not recommended, as the issue could lead to reduced performance or safety risks due to impaired communication between critical systems.
5. How is the P16D7 code diagnosed?
A mechanic will use an advanced scan tool to check for additional codes, inspect the F-CAN wiring and connectors, and test the PCM for proper operation.
6. What repairs are needed to fix the P16D7 code on an Acura?
Repairs may include repairing or replacing damaged wiring, updating or reprogramming the PCM software, or replacing the PCM if it is determined to be defective.
7. Can a software update fix the P16D7 code?
In some cases, a PCM software update can resolve the issue if the problem is software-related rather than hardware.
8. How much does it cost to repair the P16D7 code on an Acura?
Costs vary depending on the exact issue, but PCM replacement can range from $500 to $1,500, while wiring repairs are generally less expensive.
9. Is the P16D7 code a common issue for Acuras?
It is not a very common issue but may occur in specific models or years due to manufacturing defects or wear and tear over time.
10. Can I reset the P16D7 code by disconnecting the battery?
Disconnecting the battery may clear the code temporarily, but the issue will likely return unless the underlying problem is properly addressed.
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