Question about 2001 Mercury Cougar
The abs will scan the air bag will scan the body control will skan but power train & engine will not no coum.codes on scan tool is u1262 u2018 b1201 b1756 b1520 b1318 b1328
First check all pcm fuses and ignition fuses. Pull them and put them back in if they are good. then check the grounds for the ECM. Then check the data wires to the ECM. Volt/Ohm meter is needed
Posted on Nov 07, 2014
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Posted on Jan 02, 2017
SOURCE: check engine light came on
Generally this happens because these codes were reset at a dealership etc. These problems should have been corrected before the codes were reset (reputable dealer). A common reason that these codes come on is because of excess hydrocarbon emmissions with a misfire. If this was a temporary event, the light would reset. Since it continues, another likely reason is the oxygen sensor in the exhaust system has failed.
Posted on Nov 19, 2013
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