the back up relay "clicks" but NOTHING ELSE works. on 2002 Chevrolet Impala

I turned the key, the lights came on then immediately went off and something in the dash started "clicking". On investigation, the owners manual calls the clicking item a back-up relay. It continues to click even when you turn off the key. Have a code reader but I guess it doesn't work unless the engine is running.

by in Columbia, TN on November 25, 2012
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2 answers 1 comment
ANSWER by , November 25, 2012
Im just assuming that your battery voltage is too low...have your battery checked and repost.
COMMENT by , November 25, 2012
Hooked it up with jumper cables, still got nothing. Don't have meter. Will buy one tomorrow. Thank you. Will reply with results. Thanks again!!!!!!!!
ANSWER by , November 25, 2012
code reader will not help,ck voktage at relay. should have approx 12.2v