Operation CHARM: Car repair manuals for everyone.
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

DTC ECM-941F




Condition







Diagnostic trouble code (DTC) ECM-941F is stored in the engine control module (ECM) if the engine control module (ECM) registers a signal outside its permitted range between the brake pedal sensor and the stop (brake) lamp switch.

Substitute value
- cruise control shut off.

Possible source

Faulty signal 1-2:
- open-circuit in signal cable
- defective stop (brake) light switch.

Fault symptom[s]
- ETS warning lamp lit
- cruise control does not function at all.