2007-2010 Lincoln MKX EVO-ALL FORT4/FOR4 No Start

Question

I'm encountering a no start condition with EVO-ALL (SN: 001A07511504) and THAR-FOR4 T-Harness in a 2009 Lincoln MKX. It programs correctly (i.e. ending with 10 red flashes then rapid blue flashes). When remote starting it goes through the motions but the engine never cranks.

I currently do not have A4 (green wire - unlock) or A5 (white wire - lock) installed from the 20-pin connector as from my understanding it's only required for a RF kit. I will be installing a MyCar module but want to ensure I have the basics working first before connecting the other wires to the BCM.

NOTE: The unlock wire color seems to be incorrect for the 3B BCM connector in Guide # 89131 rev 20220805.  The manual states Purple/Green but the actual color is Purple/Grey. Wirecolor also lists the unlock wire as Purple/Grey.

Answer 1

Hello,

 

Turn off D2 and re test.

Best regards.

Comments

Thanks for the help Derek! I was finally able to install the module with D2 turned off and it now works as intended with the OEM key fob.

However, I have encountered an issue using the MYCAR telemetric module. When I unlock the vehicle it unlocks for a second or less then relocks. I'm using the OEM alarm and have the two ARM wires with 1 amp diodes wired to A5, UNLOCK wired to A4, and DRIVER DOOR PIN wired to A17 and A18. What would be the cause of this issue?

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Try putting the doorpin wire back together, see if the issue goes away.