Question about 1999 Mercury Grand Marquis
I bought the light control module from Ford garage for $500.00
and still have the problem with the lights coming on and off by themselves.
Which results in a dead battery.
Any more Ideas. Marilyn Stache
Ddid you check the dimmer switch? also did you check the wiring harness to make sure there are no shorts in it.
Posted on Aug 28, 2008
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Posted on Jan 02, 2017
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Dec 07, 2013 | 2005 Mercury Grand Marquis
this warning light or any other stays on in the dash it is indicating
that the systems control module (or the system sensor in the case of
lights like low oil pressure, door open indicators etc.) has detected
a fault, it then disables the system (this applies to ABS,TCS, TCM,
SRS and BCM faults and others) as long as the light is on. You must
now have the dealer hook up a special electronic diagnostic tool and
"scan" the system for the fault code that is stored for the
Legend of Abbreviations. ABS Antilock brake system.TCS Traction control system, TCM Transmission control module, SRS Supplemental restraint system, BCM Body control module
Oct 26, 2012 | 2001 Ford Taurus
When the service engine soon light (Also called the check engine light) is turned on this is to alert you to the fact that powertrain control module (computer) has detected a failure somewhere in the systems it controls, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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