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Did you just have a clutch replaced by chance? If you did you may want to check if the connector is reversed at the switch or replacement of the switch. Here:
REMOVAL & INSTALLATION
The back-up light switch is located on the trans axle (side nearest firewall) next to the clutch cable mount bracket. The switch has two wires coming from it that run through a plastic cover.
The back up light switch is part # XXXXX Check that connector first. Any other questions, please let me know. Thank you.
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