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P1118 Throttle Actuator Control System Motor Malfunction
AutoHex Online Help: Hyundai CENTENNIAL(LZ) 2005
ETS
DTC | P1118 | ETS Motor Fault or Circuit Malfunction |
CC CODE | P1176 | ETS Motor Circuit Malfunction - Open or Short #1 |
P1177 | ETS Motor Circuit Malfunction - Open or Short #1 |
P1178 | ETS Motor Circuit Malfunction - Battery Voltage Line Open |
DESCRIPTION
ECM sends target value for opening throttle valve to ETS unit after calculating from received signals such as APS2 and other input values. ETS unit controls ETS motor to meet ECM’s target value for opening throttle valve. ETS unit detects real position of motor using initial position of motor and change of TPS output voltage. ETS motor’s rotor rotates 780°from close throttle valve to wide open throttle valve and ETS motor controls opening angle of throttle valve with 26 patterns; motor’s rotor rotates 30° per one pattern.
DETECTING CONDITIONDTC NO. | Detecting condition & Limp Home | Possible Cause |
P1118/ P1176 | Detecting condition Motor's duty is over 50%. Current consumption of motor > 9A Current consumption of the moment is over 7A in the third test.
Limp home Limp home mode is activated (See FL-3)
| Open or short in ETS motor circuit ETSrelay ETS motor
|
P1118/ P1177 | Detecting condition Motor's duty is over 66%. Current consumption of motor > 9.5A
Enable condition Ignition switch ON
Limp home Limp home mode is activated (See FL-3)
|
P1118/ P1178 | Detecting condition Voltage for monitoring open =4V
Enable condition ETS relay ON
Limp home Limp home mode is activated (See FL-3)
|
SPECIFICATIONETS motor | Resistance |
0.6 ~ 1.5? |
CIRCUIT DIAGRAM
SIGNAL WAVEFORM
INSPECTION PROCEDURES