Cadillac 2004 CTS Owner's Manual page 333

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CAUTION:
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5. Check that the jumper cables don't have loose or
missing insulation. If they do, you could get a
shock. The vehicles could also be damaged, too.
Before you connect the cables, here are some basic
things you should know. Positive (+) will go to
positive (+) or to a remote positive (+) terminal if the
vehicle has one. Negative ( ) will go to a heavy,
unpainted metal engine part or to a remote
negative ( ) terminal if the vehicle has one.
Notice: If you connect a negative cable to the ECM,
ECM mounting bracket or any cables that attach
to the ECM bracket, you may damage the ECM.
Attach the negative cable to a heavy, unpainted
metal engine part, other than the ECM, ECM bracket
or cables attached to the ECM bracket.
Don't connect positive (+) to the negative ( ) or you
will get a short that would damage the battery
and maybe other parts, too. And don't connect the
negative ( ) cable to negative ( ) terminal on
the dead battery because this can cause sparks.
6. Connect the red positive (+) cable to the positive (+)
terminal of the dead battery. Use a remote
positive (+) terminal if the vehicle has one.
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