Vehicle uses 2WD(2 wheel drive) for driving at normal speed, but sometimes it uses 4WD (4 wheel drive) accordign to driving condition. (cornering or acceleration)
EMC(Electric Magnetic Clutch) distributes proper torque to front wheel by controling amount of current inside EMC coil.
That time power pressing the multi plate clutch by apply cam is changed by a rate of EMC duty. after multi plate clutch start slip the force for acceletion at front/rear wheel is controlled at a range of 100:0 ~ 50 : 50.
ITM system has 4WD-LOCK function that can make driving force to 50:50 by compulsion according to driver’s intention.
This DTC code is related to the EMC and is set If control harness has an open or short to battery source.
If failure is detected TCCU prohibits the ITM control and vehicle is controlled with 2WD by intercepting EMC current.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Short/ Open to Battery
? Power supply malfunction.
? EMC,TCCU connector looseness and poor terminal to wire connection.
? EMC circuit open or short to battery.
? Faulty EMC motor .
? Faulty TCCU .
Enable Conditions
? Ignition cycle required
Threshold Value
? 25 occurrences in a row mature
Diagnostic Time
? 1 sec
MIL on condition
? 0.5 Sec.
Fail Safe
? EMC Error will turn ITM off. The ECU will not send current to the clutch coil.