CIRCUIT OPERATION
Controls the current that is applied from ECM terminals ETV+, ETV- to the throttle actuator control motor
TECHNICAL DESCRIPTION
ECM check whether the throttle actuator control motor magneto has failed.
DESCRIPTIONS OF MONITOR METHODS
Throttle actuator control motor intelligent power device detects shorted-high/low and overheat of itself.
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC set in memory for the item monitored below)
Sensor (The sensor below is determined to be normal)
DTC SET CONDITIONS
Check Condition
- Battery positive voltage is higher than 8.3 volts.
Judgment Criterion
- The coil current of the throttle actuator control motor is more than 8 amperes for 0.3 second.
FAIL-SAFE AND BACKUP FUNCTION
- Throttle opening degree position is in default position.
OBD-II DRIVE CYCLE PATTERN
- Refer to Diagnostic Function - OBD-II Drive Cycle - Pattern 1 .
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are: )
- Throttle actuator control motor failed.
- Shorted throttle actuator control motor circuit, harness damage or connector damage.
- ECM failed.