These system ID are for the ABS compomnent, You can pass a emission test with a ABS light on, but not the CK ENG LT. Cadillac did have problem with the fuel tank pressure sensor. TSB#
2002-2003 Cadillac DeVille, Seville Equipped with V8 (4.6L) Engine (LD8/L37)
2002-2003 Oldsmobile Aurora Equipped with V8 (4.0L) Engine (L47)
2002-2003 Pontiac Bonneville SSEi
This bulletin is being revised to remove the parts restriction on the fuel tank and eliminate the need for the recall identification label. Please discard bulletin 03035, issued October 2003.
Condition
General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2002-2003 model year Cadillac DeVille and Seville vehicles equipped with a V8 (4.6L) engine (LD8/L37), Oldsmobile Aurora vehicles equipped with a V8 (4.0L) engine (L47), and Pontiac Bonneville SSEi vehicles. The fuel tank pressure sensors in these vehicles are unusually susceptible to malfunctions. If the sensor malfunctions, excessive vacuum can be applied to the fuel tank during self-diagnostic testing. Fuel system components can be damaged and fuel can leak from the vehicle when it is refueled. Possible symptoms of this condition are fuel odor from the fuel tank area, inaccurate fuel gauge readings, and poor driveability. If there is an ignition source present, a fire could occur.
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