I have a 1995 Cadillac Seville my code is po16 and po52 and po99 and io42 and io52 and to72 and to77 and pcm what are them codes

SOURCE: obd codes for a 1994 cadillac seville sls

what that means is that the ecm(main computer) is not getting a voltage signal value from the o2 sensor. this could be due to a broken wire,bad plug or a bad sensor please rate this thanks

SOURCE: 1994 eldorado

have you checked that battery? it seems that it may need replace it might not be keeping a charge, the connectors to the battery could also possibly be corroded as well, which could caue connection problems, i had the sam problem with my old car and it turned out to just be the connection from the cables to the battery due to bolts needing to be tightend or corrosion.

SOURCE: Battery No Charge and Error codes

These are for 4.9L


P016-generator voltage out of range--Voltage is below 10 volts or above 16 volts with engine at 500rpm.

P030-Idle speed control (ISC) out of range--Check ISC for operation

A047-very low A/C refrigerant condition warning--check refrigerant level

I039-speed sensing suspension (SSS) fault--this one requires a lot of testing. Could be anything from bad connection at a strut, to bad ground, to bad strut.

I041-battery voltage too low--at 800 rpm, voltage is less than 10.6 volts

I052-keep alive memory error--means IPC lost voltage, and reset. Normal if battery was disconnected, or lost voltage.


These codes are for 4.6L


I039-loss of road sensing suspension (RSS) data--might need to replace rss module

P016-generator voltage out of range--same as above.


If you need anything else, let me know.

SOURCE: 1996 cadillac seville sls codes

1996 cadillac sls. Oil light comes on and car stalls. Oil is full

SOURCE: codes for 2001 cadillac seville

oxygen sensors are fine you have a air leak check intake for leaks start with checking all inlet pipes rubber hoses if ok check fuel press if ok most likely mass air flow sensor i am leaning toward air leak.