What does P1238 mean on a Ford?

P1238. Fuel Pump Secondary Circuit Fault (Bank 2). Applies to Dual-pump Ford applications.

What causes P1238 on a Ford?

Failed secondary pump Open secondary circuit Faulty secondary relay Wiring damage Control module fault

How do I fix P1238 on a Ford?

Identify which pump serves the flagged circuit Test relay and wiring Verify secondary pump operation Check current draw per pump Replace the failed pump or relay

Code

P1238

Fuel Pump Secondary Circuit Fault (Bank 2)

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Dual-pump Ford applications
Related: P0230 Fuel Pump Primary Circuit on OBD Codes List

Findings, check these first

Failed secondary pump
Open secondary circuit
Faulty secondary relay
Wiring damage
Control module fault

Standard procedure

Identify which pump serves the flagged circuit
Test relay and wiring
Verify secondary pump operation
Check current draw per pump
Replace the failed pump or relay

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: checked against the recorded source material.

OBDII.pro: P1238 Ford definition
live reference page (obdii.pro)
Supports: Ford-family meaning for P1238: Fuel Pump Secondary Circuit Malfunction
Fetched directly. obdii.pro is a publisher independent of the engine-codes family.
P1238 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes
live reference page (obd2-codes.co)
Supports: Ford meaning for P1238: Fuel Pump Secondary Circuit Fault
Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.

Last updated 2026-09-05.

Report a correction for P1238. Include your vehicle, the issue and a source if you have one.