DIAGNOSTIC FUNCTION
TCM conducts fault detection by monitoring the terminal voltage of the transmission fluid temperature sensor.
DESCRIPTIONS OF MONITOR METHODS
TCM detects the fluid temperature 180°C (356°F) or more for 5 seconds.
MONITOR EXECUTION
- Voltage of battery: 10 volts or more.
MONITOR EXECUTION CONDITIONS (OTHER MONITOR AND SENSOR)
Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
- P0842, P0843: Malfunction of the secondary pressure sensor
- P0847, P0848: Malfunction of primary pressure sensor
- P2720, P2721: Malfunction of select pressure solenoid valve
Sensor (The sensor below is determined to be normal)
- Secondary pressure sensor
- Primary pressure sensor
LOGIC FLOW CHARTS (Monitor Sequence)
DTC SET CONDITIONS
Check Conditions
- Voltage of battery: 10 volts or more.
Judgment Criteria
- Value of temperature of transmission fluid: 180°C (356°F) or more. (5 seconds)
OBD-II DRIVE CYCLE PATTERN
Ignition switch: ON (start the engine and keep it for 10 seconds or more)
PROBABLE CAUSES
- Malfunction of transmission fluid temperature sensor
- Damaged wiring harness and connectors
- Malfunction of TCM