Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Automatic Climate Controls (RPO C68)

1. Pull valve link from retainer on programmer output crank (if not previously disassembled).
2. Start vehicle; set temperature to 32°C (90°F).
3. Allow 45 seconds minimum for programmer motor to move output crank to its full hot position. Then move temperature valve to full hot position; snap valve link into retainer on output crank.