Follow us on Twitter and win Autohex II Scan Tool for Kia and Hyundai (worth 945.00 USD)

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 CONDITION

DTC 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)

SPECIFICATION

ETS motor

Resistance

0.6 ~ 1.5?

CIRCUIT DIAGRAM
SIGNAL WAVEFORM
INSPECTION PROCEDURES