Conditions for Setting the DTC

P0667

• TCM detects a 20 - 50°C (36 - 90°F) or greater difference between the transmission fluid temperature and TCM substrate temperature, which depends on the average of the transmission fluid temperature, TCM substrate temperature, and TCM power up temperature.
• TCM detects an 8 - 10°C (14 - 18°F) or greater difference between the TCM power up temperature and TCM substrate temperature, which depends on the average of the transmission fluid temperature, TCM substrate temperature, and TCM power up temperature.
• Above conditions have to be met for 5 min within a 6 min period.

P0668 

TCM temperature is -249°C (-416°F) or less for 1 min.

P0669 

TCM temperature is 249°C (480°F) or greater for 1 min.