Open the hood and look at the firewall area at the left rear of the engine compartment. There should be a large multi pin connector and a single pin connector hanging from the wiring harness near the a/c drier.
The 1988 Mercury Cougar diagnostic port can be found under the hood.
Is there a penny stuck in the lighter port?
near the firewall on the passenger side
I found the low pressure ac port on my 2001 sable by the passenger side firewall.
On a 2008 Mercury Sable : In the power distribution box ( which is " live " ) located in the engine compartment by the battery : ( mini fuse # 13 is a 20 amp fuse for the instrument panel power port and # 14 is for the 2nd row power port )
The OBDII diagnostic port is under the dash to the right of the steering column.
Under the dash to the right of the steering column.
under drivers side dash next to the hood release
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