P1238 1999 Ford F150 Code - Fuel Pump Secondary Circuit Fault
Quick Answer
This DTC indicates the Fuel Pump Driver Module (FPDM2) detected a fuel pump secondary circuit concern. Common causes include Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) harness is open or shorted, Fuel Pump Driver Module (FPDM) 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
- P1238 1999 Ford F150 indicates Fuel Pump Secondary Circuit Fault.
- Common causes
- Common causes include Faulty Fuel Pump Driver Module (FPDM), Fuel Pump Driver Module (FPDM) harness is open or shorted, Fuel Pump Driver Module (FPDM) 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.
Code P1238 1999 Ford F150 Description
What are the Possible Causes of the DTC P1238 1999 Ford F150?
- Faulty Fuel Pump Driver Module (FPDM)
- Fuel Pump Driver Module (FPDM) harness is open or shorted
- Fuel Pump Driver Module (FPDM) circuit poor electrical connection
- Faulty fuel pump
How to Fix the DTC P1238 1999 Ford F150?
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.
Code Tech Notes
P1238 indicates that the FPDM has detected a fuel pump secondary circuit fault. The FPDM will send a message to the PCM through the FPM circuit, indicating that this failure has been detected. The PCM will set the DTC when the message is received.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1238 1999 Ford F150 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 P1238 1999 Ford F150 code?
Need more information on how to fix the P1238 1999 Ford F150 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1238 1999 Ford F150 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1238 1999 Ford F150 Code
1. What are the common symptoms of OBDII code P1238 in a 1999 Ford F150?
The common symptoms of code P1238 in a 1999 Ford F150 include engine stalling, difficulty starting the vehicle, and a noticeable decrease in fuel efficiency.
2. What is the primary cause of OBDII code P1238 in a 1999 Ford F150?
The primary cause of code P1238 in a 1999 Ford F150 is a fault in the fuel pump secondary circuit, which can be due to issues with the fuel pump relay, wiring, or the fuel pump itself.
3. How can I diagnose the fuel pump secondary circuit fault causing OBDII code P1238 in my 1999 Ford F150?
Diagnosing the fuel pump secondary circuit fault involves checking the fuel pump relay, inspecting the wiring for damage or loose connections, and testing the fuel pump's operation using a multimeter.
4. What are some repair tips for fixing OBDII code P1238 in a 1999 Ford F150?
Repair tips for addressing code P1238 may include replacing a faulty fuel pump relay, repairing damaged wiring, or replacing the fuel pump if it is determined to be the root cause of the issue.
5. Can driving with OBDII code P1238 in a 1999 Ford F150 cause further damage?
Continuing to drive with code P1238 present in your 1999 Ford F150 can potentially lead to fuel delivery issues, engine performance issues, and further damage to the fuel pump or related components.
6. How urgent is it to address OBDII code P1238 in a 1999 Ford F150?
It is important to address code P1238 promptly in a 1999 Ford F150 to avoid potential breakdowns, stalling, and other drivability issues associated with fuel pump circuit faults.
7. Is it safe to reset the OBDII code P1238 in a 1999 Ford F150 and continue driving?
While you can reset the code temporarily, it is not recommended to ignore the underlying issue causing code P1238 in your 1999 Ford F150, as it may lead to more significant problems if left unresolved.
8. How much does it typically cost to repair OBDII code P1238 in a 1999 Ford F150?
The cost of repairing code P1238 in a 1999 Ford F150 can vary depending on the root cause of the issue, but it may range from a few hundred dollars for a relay replacement to more for a fuel pump replacement.
9. Can a DIY enthusiast fix OBDII code P1238 in a 1999 Ford F150?
DIY enthusiasts with some automotive repair experience may be able to address code P1238 by following repair guides, using basic tools, and conducting thorough diagnostic tests to pinpoint the fault.
10. How long does it typically take to repair OBDII code P1238 in a 1999 Ford F150?
The duration of the repair for code P1238 in a 1999 Ford F150 can vary based on the specific issue, but it may take a few hours to a day for troubleshooting, parts replacement, and testing to be completed.
Discuss the causes and fixes for P1238 1999 Ford F150 OBDII Code
Code P1238 1999 Ford F150 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.
