P1633 2010 Ford Fusion Code - Keep Alive Power Voltage Too Low
Quick Answer
The Keep Alive Power (KAPWR) provides a constant voltage input independent of the ignition switch state to the Powertrain Control Module (PCM). Common causes include Open Keep Alive Power (KAPWR) circuit, Faulty Powertrain Control Module (PCM). 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
- P1633 2010 Ford Fusion indicates Keep Alive Power Voltage Too Low .
- Common causes
- Common causes include Open Keep Alive Power (KAPWR) circuit, Faulty Powertrain Control Module (PCM).
- 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 P1633 2010 Ford Fusion Description
What are the Possible Causes of the DTC P1633 2010 Ford Fusion?
- Open Keep Alive Power (KAPWR) circuit
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P1633 2010 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 P1633 2010 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.
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Frequently Asked Questions about P1633 2010 Ford Fusion Code
1. What does the OBDII code P1633 mean on a 2010 Ford Fusion?
P1633 indicates that the Keep Alive Power (KAP) voltage is too low, meaning the vehicle's PCM (Powertrain Control Module) is not receiving consistent power to retain stored data when the engine is off.
2. What are the common symptoms of code P1633 in a 2010 Ford Fusion?
Symptoms may include the check engine light turning on, loss of stored settings like fuel trim data, and potential issues with drivability or performance.
3. What causes the P1633 code to appear in a 2010 Ford Fusion?
Common causes include a weak or failing battery, loose or corroded battery terminals, a blown fuse, damaged wiring to the PCM, or a faulty ignition switch.
4. Can a low battery trigger the P1633 code in a 2010 Ford Fusion?
Yes, a low or failing battery can cause insufficient Keep Alive Power voltage, triggering the P1633 code.
5. How do I fix the P1633 code on my 2010 Ford Fusion?
Start by checking the battery’s condition and connections, inspect fuses and wiring to the PCM, and repair or replace any damaged components as needed. If the problem persists, test the PCM itself.
6. Will the P1633 code affect my 2010 Ford Fusion’s performance?
The code itself may not cause immediate performance issues, but it can lead to loss of adaptive settings in the PCM, potentially resulting in drivability problems over time.
7. Can I drive my 2010 Ford Fusion with a P1633 code?
Yes, the vehicle is usually drivable, but it is recommended to address the issue promptly to avoid potential long-term issues or loss of important PCM data.
8. Can a blown fuse cause the P1633 code in a 2010 Ford Fusion?
Yes, a blown fuse related to the Keep Alive Power circuit can interrupt power to the PCM and trigger the P1633 code.
9. How do I prevent the P1633 code from occurring again in my 2010 Ford Fusion?
Ensure the battery is in good condition, maintain clean and tight battery terminal connections, and periodically inspect wiring and fuses in the Keep Alive Power circuit.
10. Does the P1633 code always mean the PCM is faulty in a 2010 Ford Fusion?
No, a faulty PCM is a less common cause. The issue is more likely related to the battery, fuses, or wiring providing power to the PCM.
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