P1238 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 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 Description
What are the Possible Causes of the DTC P1238?
- 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?
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 P1238 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 code?
Need more information on how to fix the P1238 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1238 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- P1238 Audi — Injector Circuit Open Cylinder 2
- P1238 Chevrolet — Injector 6 Output Circuit
- P1238 Ford — Fuel Pump Secondary Circuit Fault
- P1238 GMC — Injector 6 Output Circuit
- P1238 Infiniti — Electric Throttle Control Actuator
- P1238 Isuzu — High Fuel Pressure Regulator Circuit Shorted To Battery
- P1238 Mazda — Fuel Pump Driver Module Disabled Or Off Line
- P1238 Mitsubishi — MASS Airflow Sensor Plausibility
- P1238 Nissan — Electric Throttle Control Actuator
- P1238 Volkswagen — Injector Circuit Open Cylinder 2
- P1238 Volvo — Turbocharger Control valve
Frequently Asked Questions about P1238 Code
1. What are common symptoms of OBDII code P1238 (Fuel Pump Secondary Circuit Fault)?
- Common symptoms include issues with starting the vehicle, engine stalling, and a lack of power while driving.
2. What are the possible causes of OBDII code P1238?
- Possible causes include a faulty fuel pump, damaged wiring or connectors in the fuel pump circuit, or a malfunctioning fuel pump driver module.
3. How can I diagnose the cause of OBDII code P1238?
- Diagnosis typically involves checking the fuel pump's electrical connections, inspecting the fuel pump driver module, and testing the fuel pump itself for proper operation.
4. Can a clogged fuel filter trigger OBDII code P1238?
- While a clogged fuel filter can lead to fuel delivery issues, it is not a direct cause of OBDII code P1238. However, a severely clogged filter may impact fuel pump performance and trigger the code indirectly.
5. Is it safe to continue driving with OBDII code P1238 present?
- It is not recommended to continue driving with OBDII code P1238, as it can lead to fuel delivery problems and potentially cause the vehicle to stall unexpectedly.
6. How can I repair OBDII code P1238?
- Repairing OBDII code P1238 typically involves replacing a faulty fuel pump, repairing damaged wiring or connectors, or replacing the fuel pump driver module as needed.
7. Can a DIY enthusiast fix OBDII code P1238 at home?
- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address OBDII code P1238 at home, particularly if the issue is related to simple wiring repairs.
8. Will resetting the fault codes make OBDII code P1238 disappear permanently?
- Resetting the fault codes may temporarily clear OBDII code P1238, but if the underlying issue is not addressed and repaired, the code is likely to reappear once the problem resurfaces.
9. How much does it typically cost to repair OBDII code P1238 at a mechanic or dealership?
- The cost of repairing OBDII code P1238 can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
10. Can extreme weather conditions affect the occurrence of OBDII code P1238?
- Extreme weather conditions, particularly extreme heat or cold, can potentially impact the performance of the fuel pump and its associated components, which may contribute to triggering OBDII code P1238.
Discuss the causes and fixes for P1238 OBDII Code
-
I just wanted to say that I was driving my 2000 s80 t6 and all of a sudden it lost power and then we before I could pull over the car died. This code came up p1238. The car would start but then a few seconds later would die. I opened the hood and where there is a double hose on the top of the engine, the hoses had come off and I reattached them and the car started and everything was fine.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
