P069E

What it means

P069E is a generic powertrain code meaning the fuel pump control module has requested that the engine control module switch on the malfunction indicator lamp. The fuel pump control module runs its own self-checks on the pump, its drive circuit and its communications. It has detected a fault that affects emissions or fuelling and has asked the engine control module to light the MIL. The fault itself is usually stored as a separate code in the fuel pump control module.

Symptoms

• Malfunction indicator lamp on
• Long cranking or hard starting
• Engine hesitation, poor power or surging under load
• Engine stalling or cutting out
• Reduced performance or limp mode
• Possible fuel pressure related fault codes stored alongside

Possible causes

• Fault within the fuel pump or its drive circuit, such as a worn pump or high electrical loadlikely
• Wiring or connector fault in the fuel pump power, ground or control circuits (corrosion, chafing, high resistance)likely
• Low or unstable supply voltage from a weak battery, poor earth or charging faultpossible
• Fault in the fuel pump control module itselfpossible
• Communication fault between the fuel pump control module and the engine control modulepossible
• Blocked fuel filter or restriction in the fuel line causing the pump to work outside its expected rangepossible
• Outdated control module software where the manufacturer has issued a known correctionrare

How to diagnose

1. Read all stored codes from both the engine control module and the fuel pump control module, and note the freeze frame data. The related code points to the real fault.
2. Check for relevant technical service bulletins and software updates for the vehicle, as the layout and strategy vary by model and engine.
3. Check battery condition and charging voltage, and inspect the battery terminals and main earths.
4. Inspect the fuel pump control module, its connectors and wiring for damage, corrosion, water ingress or heat damage.
5. Check the fuel pump fuse and relay (where fitted) and test the supply and earth under load for voltage drop.
6. Measure fuel pressure and compare it with the manufacturer's specification, and check the fuel filter where it is serviceable.
7. Use a scan tool to view fuel pump commanded duty against actual pressure and check the pump current draw, following the procedure for the specific model.
8. Check for network communication faults between the modules and test the data lines per the manufacturer's procedure.

How to fix

• Repair or replace damaged wiring, connectors or terminals in the fuel pump circuits.
• Restore a healthy electrical supply by repairing or replacing a weak battery, poor earth or charging fault.
• Replace the fuel pump if it is faulty or drawing abnormal current.
• Replace a clogged fuel filter or clear a fuel line restriction.
• Replace or reprogram the fuel pump control module if it is confirmed faulty, as the manufacturer requires.
• Apply a manufacturer software update if an outdated calibration is a known cause.

Can I keep driving?

Nearby codes

• P069DGenericCylinder 10 Glow Plug Control Circuit High
• P069FGenericThrottle Actuator Control Lamp Control Circuit