P1640 2012 Ford Fusion Code - Powertrain DTCs Available in Another Module
Quick Answer
Vehicles using a secondary Engine Control Module can request that the Powertrain Control Module (PCM) illuminate the Malfunction Indicator Lamp (MIL) when a failure occurs which affects emissions. Common causes include Diagnostic Trouble Code (DTC) stored in a secondary module, which requested the MIL to be turned on. 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
- P1640 2012 Ford Fusion indicates Powertrain DTCs Available in Another Module.
- Common causes
- Common causes include Diagnostic Trouble Code (DTC) stored in a secondary module, which requested the MIL to be turned on.
- 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 P1640 2012 Ford Fusion Description
What are the Possible Causes of the DTC P1640 2012 Ford Fusion?
- Diagnostic Trouble Code (DTC) stored in a secondary module, which requested the MIL to be turned on.
How to Fix the DTC P1640 2012 Ford Fusion?
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 P1640 2012 Ford Fusion 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 P1640 2012 Ford Fusion code?
Need more information on how to fix the P1640 2012 Ford Fusion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1640 2012 Ford Fusion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1640 2012 Ford Fusion Code
1. What does code P1640 mean on a 2012 Ford Fusion?
Code P1640 indicates that Powertrain Diagnostic Trouble Codes (DTCs) are available in another module, such as the PCM, TCM, or another control module.
2. What are the common symptoms of P1640 in a 2012 Ford Fusion?
There may be no noticeable symptoms, but you could experience issues like reduced engine performance, erratic shifting, or a check engine light.
3. What causes the P1640 code to appear?
The P1640 code can be triggered by a communication issue between control modules, a wiring problem, or a fault within one of the modules.
4. Can I drive my 2012 Ford Fusion with a P1640 code?
While the vehicle may still be drivable, it's best to diagnose and fix the issue promptly to avoid potential long-term damage to the powertrain system.
5. How do I diagnose the P1640 code on a 2012 Ford Fusion?
Use an OBDII scanner to check for other related codes in different modules and inspect the communication wiring and connectors between modules.
6. What repairs are needed to fix the P1640 code?
Repairs may include addressing communication faults, repairing damaged wiring, cleaning or replacing corroded connectors, or reprogramming or replacing a faulty control module.
7. Can a dead battery cause the P1640 code in a 2012 Ford Fusion?
Yes, a weak or dead battery can disrupt communication between modules and trigger the P1640 code.
8. Will clearing the P1640 code fix the problem?
Clearing the code may turn off the check engine light temporarily, but it won’t fix the underlying issue causing the code to appear.
9. How much does it cost to fix the P1640 code on a 2012 Ford Fusion?
Repair costs can vary widely, from $50 for simple wiring repairs to several hundred dollars if a module needs replacement or reprogramming.
10. Is the P1640 code specific to the 2012 Ford Fusion?
No, the P1640 code can appear on other Ford vehicles, but the specific causes and symptoms may vary depending on the model and year.
Discuss the causes and fixes for P1640 2012 Ford Fusion OBDII Code
Code P1640 2012 Ford Fusion comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
