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Home >> Jeep >> 2018 >> Wrangler JK Unlimited Sahara, Automatic Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0605-Internal Control Module ROM >> Possible Causes
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Possible Causes

Possible Causes
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to . 

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