Mercury Grand Marquis 2004 ECU
I have installed a new ECU from a reputable supplier in my Mercury Grand Marquis 2004. The dash goes blank when key is turned to start. Car would staret half an hour previously with old ECU, battery is new. Any ideas?
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Answers
2020 Volvo XC90 T6 Momentum / 2019 Volvo S60 T6 Inscription
Sometimes larger locksmiths have the equipment to program the keys as well.
2020 Volvo XC90 T6 Momentum / 2019 Volvo S60 T6 Inscription