DIAGNOSTIC FUNCTION
TCM detects malfunction using the stoplight switch signal sent from the ETACS-ECU.
DESCRIPTIONS OF MONITOR METHODS
Drive the vehicle at 30 km/h (19 mph) or more for 10 seconds, and then turn the ignition switch to the "LOCK" (OFF) position. In this sequential operation, no variation has been found in the stoplight switch input signal in two consecutive times.
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
Sensor (The sensor below is determined to be normal)
LOGIC FLOW CHARTS (Monitor Sequence)
DTC SET CONDITIONS
Check Conditions
- Vehicle speed: 30 km/h (19 mph) or more.
- Voltage of battery: 10 volts or more.
Judgment Criteria
- The change of stoplight switch signal during driving cycle: no occurrence (10 seconds × 2 times).
OBD-II DRIVE CYCLE PATTERN
Drive the vehicle for 10 seconds or more at 30 km/h (19 mph) or higher (2 drive cycle)
PROBABLE CAUSES
- Malfunction of CAN bus line
- Malfunction of the stoplight switch
- Damaged wiring harness and connectors
- Malfunction of TCM
- Malfunction of ETACS-ECU