Condition No. 1 For Setting DTC P1870
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NOTE:
The PCM detects slip in the torque converter clutch and/or the fourth gear clutch pack with the TCC in an apply or locked mode. DTC P1870 sets during the second consecutive trip when one of the following condition occurs.
- The TCC slip speed is 120-550 for 10 seconds.
- All conditions for running the DTC are met for three occurrences.