2008 Infiniti Qx56
Key Replacement - Save vs Dealer in Ventura County
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2008 Infiniti Qx56
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2008 Infiniti Qx56 Smart Key Replacement - Fast, Affordable & Professional
Got a call from a woman near Santa Barbara Botanic Garden, late on a Tuesday. She had one smart key for her 2008 QX56, and it stopped communicating completely. Push the start button, nothing. Dashboard just sitting there with "NO KEY DETECTED" like the fob didn't exist.
She had already called the Infiniti dealer. They told her to get it towed in and they could look at it in two days. The tow alone would have been a project since she was parked on a narrow side street.
I drove out that night. Her fob was the CWTWBU624, 285E3-ZQ31A housing, four buttons. I popped the case open on my tailgate. The CR2025 was corroded on one side, a thin green film on the negative contact. Cleaned the terminals, dropped a fresh Panasonic CR2025 in, and it woke back up. Range returned, doors responded from about 15 feet, start button fired the VK56DE on the first press.
But I don't just hand it back on faith. Walked every door handle sensor, tested lock and unlock from multiple distances, cycled the hatch release, and confirmed the dash cleared the no-key message with the fob in my pocket and again on the back seat. The whole system on this truck uses the BCM (body control module, part of the IPDM E/R assembly) to talk to the fob at 315 MHz, and if even one antenna is sluggish you want to know now, not tomorrow.
She watched the whole thing from her front steps. Took maybe twenty minutes. A fraction of what the dealer route would have cost her in time and money, and no flatbed involved.
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