At the OD switch, use a jumper across the Orange and Black terminals and if the lights comes on, the switch is bad.
Check fuse # 21 (15A) in fuse block. It controls the switch illumination.
If light does not turn on and OD does not work, the transmission control module and its wiring has to be checked.
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Sunday, February 20th, 2011 AT 1:30 PM