DTC P3240, P3241, P3242, P3243, P3244, P3246, P3247, P3248, P3249, P324A, P324C, P324D, P324E, P324F, P3250, P3252, P3253, P3254, P3255, P3256, P3258, P3259, P325A, P325B, P325C, P3264, P3265, P3266, P3267, P3268, P326A, P326B, P326C, P326D, P326E, P3270, P3271, P3272, P3273, P3274, P3276, P3277, P3278, P3279, P327A, P327C, P327D, P327E, P327F, P3280: Module High Temperature
caution | Before replacing the ECU, ensure that the communication circuit is normal. |
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)
- Main drive lithium-ion battery temperature sensor monitor
DTC SET CONDITIONS
Check Conditions
- battery management unit (BMU) power supply voltage is 8 volts to 16 volts.
- Time after above conditions satisfy is more than 2 seconds.
Judgment Criterion
- Cell module temperature is 60°C (140°F) or more and less than 125°C (257°F) and the state continues for 1 second.
OBD-II DRIVE CYCLE PATTERN
- Refer to OBD-II Drive Cycle - Pattern 1 .
FAIL-SAFE AND BACKUP FUNCTION
PROBABLE CAUSES
- The main drive lithium-ion battery cooling is insufficient with the failed air conditioning control system.
- Poor cooled main battery due to a defective battery cooling fan.
- The module (battery cell, CMU) in the main drive lithium-ion battery is failed.
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
STEP 2. Using scan tool (M.U.T.-IIISE), check whether the other DTC is set.
STEP 3. Using scan tool (M.U.T.-IIISE), check the data list.
STEP 4. Check the bus bar for looseness.
STEP 5. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to OBD-II Drive Cycle - Pattern 1 . (2) Check if the DTC is set.
Is the DTC set?
Retry the troubleshooting. The inspection is complete.