DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681 & P1683: Pcm Memory (Jimmy CANADIAN, SONOMA & S10 Pickup): Description

The Powertrain Control Module (PCM) electrically erasable programmable read only memory (EEPROM) contains data which is essential for operating the engine and transmission. The PCM continuously tests the integrity of this data.