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

Test K: Engine Coolant Temperature (ECT) Sensor

PINPOINT TEST K: ENGINE COOLANT TEMPERATURE (ECT) SENSOR


Temperature Vs. Resistance Values (Approximate):






Engine Coolant Temperature (ECT) Sensor Connector And Powertrain Control Module (PCM) Connector:






K1-K3:






K4-K7:






K8-K10:






K11-K14:






K15-K18: