The CVVT (Continuously Variable Valve Timing) system built on the camshaft helps the engine decrease the exhaust gas and increase engine power and fuel economy by changing the valve open/close timing of the intake camshaft continuously. The intake valve control solenoid, the main control part of the CVVT, changes the direction of the oil path through the CVVT by the duty control of the ECM and changes the open and close timing of the intake and exhaust valves.
ECM sets DTC P0076 if the ECM detects that the intake valve control solenoid control circuit is short to ground.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Electrical Check
? Short to ground in control circuit
? Poor connection or damaged harness
? Faulty Intake Valve Control Solenoid
Enable Conditions
? 10V < Battery voltage < 16V
Threshold Value
? Short circuit to ground or open circuit
Diagnostic Time
? 2sec.
Oil Control Valve
Normal Parameter At 20°C (68°F)
Insulation Resistance
Above 50M?
Temp.(°C)
Temp.(°F)
Resistance (?)
0
32
6.2 ~ 7.4
60
140
8.0 ~ 9.2
10
50
6.5 ~ 7.7
70
158
8.3 ~ 9.5
20
68
6.8 ~ 8.0
80
176
8.6 ~ 9.8
30
86
7.1 ~ 8.3
90
194
8.9 ~ 10.1
40
104
7.4 ~ 8.6
100
212
9.2 ~ 10.4
122
7.7 ~ 8.9