P069E on Buick
Fuel Pump Control Module Requested MIL Illumination
P069E on Buick vehicles indicates fuel pump control module requested mil illumination. Au7o has documented this code across 1 Buick model — most commonly on Envision. The fuel pump control module (FPCM) — the separate computer that drives the in-tank fuel pump based on the engine control module's pressure demand — has found a fault in the fuel supply system and asked the powertrain control module to turn on the check engine light. The code itself is a hand-off notice, so the actual defect is usually stored as an additional code inside the FPCM. Drivers commonly see hard starting, no-start, stalling, or a loss of power under load. Note that many vehicles use a simple fuel pump relay rather than an FPCM and will never set this code. Typical repair costs on Buick range from $500 to $1,400, depending on the specific model and root cause.
Common Causes of P069E
- •Failing or weak in-tank fuel pump
- •Faulty fuel pump control module or its internal driver
- •Fuel pressure sensor reading out of range
- •Wiring, connector, or ground faults between the ECM, FPCM, and pump
- •Blown fuse or failed fuel pump relay / low system voltage
- •Clogged fuel filter or restricted fuel supply causing low pressure
P069E on Buick by Model
Buick Envision(1 issue)
- Fuel Pump Control Module Failure Causing Stalling and Intermittent No-Start (Gen2 LSY)2021-2023
Second-generation Envisions have a repeating NHTSA pattern of the fuel pump control module failing, producing an engine that dies without warning while driving and a crank-no-start afterward, or that only fires on 7-8 of every 10 attempts. Owners report no warning lights and no stored codes in several cases. One especially dangerous report describes the vehicle stalling in a center freeway lane where the electronic shifter would not allow neutral with the engine off, stranding the car in traffic. Failures are documented from about 11,000 miles, and replacement modules have been back-ordered for extended periods.
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View P069E across all makes →Frequently Asked Questions
What does P069E mean on Buick?▼
P069E stands for "Fuel Pump Control Module Requested MIL Illumination." The fuel pump control module (FPCM) — the separate computer that drives the in-tank fuel pump based on the engine control module's pressure demand — has found a fault in the fuel supply system and asked the powertrain control module to turn on the check engine light. The code itself is a hand-off notice, so the actual defect is usually stored as an additional code inside the FPCM. Drivers commonly see hard starting, no-start, stalling, or a loss of power under load. Note that many vehicles use a simple fuel pump relay rather than an FPCM and will never set this code. On Buick specifically, this code is documented across 1 model.
What causes P069E on Buick vehicles?▼
Common causes on Buick: Failing or weak in-tank fuel pump, Faulty fuel pump control module or its internal driver, Fuel pressure sensor reading out of range, Wiring, connector, or ground faults between the ECM, FPCM, and pump, Blown fuse or failed fuel pump relay / low system voltage. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P069E on a Buick?▼
Repair costs on Buick range from $500 to $1,400, depending on the specific model and root cause.
Which Buick models have P069E documented?▼
Au7o has documented P069E on 1 Buick model: Envision.