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

Symptom Index

Symptoms Chart - Part 1:

Symptoms Chart - Part 2:

Problem Symptoms Table Part 1:

Problem Symptoms Table Part 2:

NOTE: Check that the engine control module (ECM) or powertrain control module (PCM) ground circuit is normal before checking for the cause of the problem.