Operation CHARM: Car repair manuals for everyone.
Home >> Kia >> 2009 >> Optima L4-2.4L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Temperature Gauge >> Testing and Inspection
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

Temperature Gauge: Testing and Inspection





Inspection

Engine Coolant Temperature Gauge
1. Disconnect the wiring connector (A) from the engine coolant temperature sender in the engine compartment.
2. Turn the ignition switch ON. Check that the gauge needle indicates cool. Turn the ignition switch OFF.
3. Connect a 12V, 3.4 watt test bulb between the harness side connector and ground.
4. Turn the ignition switch ON.
5. Verify that the test bulb flashes and that the indicator moves to HOT.
If operation is not as specified, replace the engine coolant temperature gauge. Then recheck the system.




pro multis · About Operation CHARM