Code
P069E
Generic
P — Powertrain
Fuel Pump Control Module Requested MIL Illumination
Views:
UK: 24
EN: 41
RU: 26
AI status
Completed
Completed
100%
Causes
- Fault stored in Fuel Pump Control Module (FPCM) or Engine Control Module (ECM) that triggers MIL request
- Loss of power or ground to FPCM (fuse, relay, wiring, connector)
- CAN bus or module communication fault between ECM and FPCM
- Intermittent or low battery voltage conditions
- Internal FPCM hardware or software failure
- Corroded or damaged connector(s) at FPCM or ECM
Symptoms
- MIL (Check Engine Light) illuminated
- Reduced or no fuel pump operation possible (engine may crank but not start)
- Intermittent starting problems or stalling
- No fuel pressure or abnormal fuel pressure behavior
- Related drivability issues (hesitation, misfire) in some cases
- Stored communication or fuel system related diagnostic trouble codes
What to check
- Read all stored codes and freeze frame data with a capable scan tool (check pending and permanent codes)
- Check for manufacturer-specific fuel pump control module status or module communication messages
- Verify battery voltage (key on and cranking) and inspect main fuses and fuel pump relay
- Visually inspect FPCM connectors and wiring for corrosion, pin damage, or loose terminals
- Check CAN bus voltages/signals and verify the FPCM appears on the network with a scan tool
- Measure fuel pump supply voltage and fuel pump current while commanding pump ON from a scan tool
Signal parameters
- Battery voltage at FPCM and ECM (key ON/cranking)
- Fuel pump command status from ECM (on/off or PWM duty)
- Fuel pump current draw (amps) while running
- Fuel rail pressure (static and controlled)
- CAN High/Low voltages and packet traffic to/from FPCM
- FPCM internal status flags (MIL request flag, self-test codes)
Diagnostic algorithm
- Connect a full-function scan tool and read all stored codes, freeze frame and module status. Note whether the P069E is pending, stored or confirmed and record related codes.
- Verify battery voltage (12.4–12.8 V or as specified) with key ON and while cranking; charge or repair battery as needed.
- Inspect fuses and fuel pump relay in power distribution box; verify continuity and voltage at relay and fuse terminals.
- Visually inspect harness and connector at the FPCM for corrosion, bent pins, or water intrusion; repair as necessary.
- With scan tool, check whether FPCM is present on the network and responding to requests. If no communication, trace CAN wiring and check termination resistors.
- Command fuel pump ON with scan tool and measure pump supply voltage and current. If commanded but no pump operation or abnormal current, inspect wiring to pump, pump relay and pump itself.
- Measure fuel rail pressure during commanded operation and compare to specification; low or no pressure indicates pump or supply issue.
- If power/ground, wiring and pump checks are good but module reports internal errors or communication faults, check for available software updates or technical service bulletins; reprogram or replace module per manufacturer procedure.
- After repairs, clear codes and perform a road test and re-scan to confirm the MIL does not re-illuminate and no related codes return.
- If intermittent, perform wiggle tests and backprobing while the issue is present to capture transient faults; consider scope traces for CAN and pump drive signals.
Likely causes
- Faulty or failing Fuel Pump Control Module
- Open/shorted power or ground circuit to FPCM (blown fuse, failed relay, connector)
- Loss of CAN communication between FPCM and vehicle network
- Corroded connector or damaged wiring at FPCM harness
- Software/firmware mismatch or need for module reflash
Fault status
Status
Fuel Pump Control Module has requested MIL illumination due to a detected fault or communication error related to fuel pump control.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
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