Doosan DX60R Shop Manual page 344

Terminal
1 - 2
2 - 3
4 - 5
5 - 6
NOTE: The higher the temperature, the higher the coil
resistance. Therefore, wait for the EGR valve to return
to normal state before measuring the resistances.
EGR Valve Operation Checks
1. After removing each EGR valve from the engine, connect
the valve with the connector.
2. Connect the valve to the battery's minus (-) terminal.
3. Turn on the key switch.(Note that turning on the key switch
causes the E-ECU to check whether the valve functions
properly by opening and shutting it.)
4. From the exhaust gas inlet, visually check whether the
valve operates correctly.
NOTE: If the EGR valve fails to smoothly operate, replace
the entire valve assembly with new one.
NOTE: If the EGR valve does not respond at all, check
whether there exists a voltage (EGR valve signal)
between the connector pins. If the voltage is within
the standard range, then replace the entire valve
assembly with new one.
IMPORTANT
Alternatively, you can remove the EGR pipe from the engine
and check the valve operation through the gas inlet
window, instead of removing the EGR valve from the
engine.
Engine
Page 164
Standard value
Resistance (Ω)
15 ± 2
at 20°C
SP001693