Diagnostic Test

SHIFT LEVER ASSEMBLY 

Repair 

• Using the schematics as a guide, check the Electronic Shift Module (ESM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Shift Lever Assembly in accordance with the Service Information. Refer to SHIFTER, TRANSMISSION, REMOVAL AND INSTALLATION, 8HP50/850RE or SHIFTER, TRANSMISSION, REMOVAL AND INSTALLATION, 8HP75 .
• Perform the TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST, 8HP75 or TRANSMISSION VERIFICATION TEST, 8HP50/850RE .