C1293

DTC C1293, C1291 Or C1292 Set In Current Or Previous Ignition Cycle:

Circuit Description
This DTC is the second portion of DTC C1291 and C1292. If DTCs C1291 or C1292 occurred during the last drive cycle, DTC C1293 becomes a current malfunction during the next ignition cycle, keeping ABS disabled until a stoplamp switch ON state is seen.

Conditions for Setting the DTC
This DTC will set when the following conditions are met:
^ This DTC is set during shutdown (ignition switch to LOCK).
^ This DTC alone indicates DTC C1291 or C1292 occurred previously, but is intermittent, or has been corrected.

Action Taken When the DTC Sets
ABS is disabled until the Electronic Brake Control Module (EBCM) receives a valid input from the stoplamp switch.

Conditions for Clearing the DTC
^ Conditions for the malfunction are no longer present and the Tech 2 scan tool Clear DTC Information function is used.
^ When a change is seen during a drive cycle in which DTC C1293 is a current malfunction, DTC C1291 or C1292 will clear itself at the end of the current ignition cycle and ABS will enable itself at the start of the next ignition cycle.