Type A: The TCM will request the illumination of the MIL lamp and store a DTC when the TCM detects a failure on the first ignition cycle.
Type C1: The TCM will request the illumination of the hold lamp and store a DTC when the TCM detects a failure on the first ignition cycle.
Type B: The TCM will request the illumination of the MIL lamp and store a DTC when the TCM detects failures on 2 consecutive ignition cycles.
Type C2: The TCM will request the illumination of the hold lamp and store a DTC when the TCM detects failures on 2 consecutive ignition cycles.
Type D: The TCM will not request the illumination of the MIL or hold lamp, but will store a DTC when the TCM detects a failure on the first ignition cycle.