LEMON Manuals
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2012
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Wrangler Unlimited Sahara, Standard Trans
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Repair and Diagnosis
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Different variant/trim
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Section 4 (Transmission Control Module (TCM) - Electrical Diagnostics)
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DTC Troubleshooting
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U1509-Implausible Engine Variant Message Data Length Received
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This page is about a different variant/trim than selected.
When the TCM detects an incorrect CAN ID from the ECM/PCM.