Condition No. 2 For Setting DTC P1870
WARNING: This page is about a different car, the 2002 GMC Cab & Chassis Sierra and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
In the following sequence for one occurrence:
- The PCM detects a TCC slip speed of 110-500 RPM for 10 seconds. The PCM commands maximum line pressure and freezes shift adapts.
- The PCM detects a TCC slip speed of 110-500 RPM for 10 seconds. The PCM commands the TCC off for 1.5 seconds. The PCM commands the TCC on.
- The PCM detects a TCC slip speed of 110-500 RPM for 10 seconds.