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DTC C1A01-96: LED - Component internal failure: Action

NOTE: If the system is in 'failsafe default' mode due to another issue, no LEDs will illuminate. This fault does not cause the system to go to 'failsafe default' mode.

Using the manufacturer approved diagnostic system, clear the DTCs. Operate the terrain response switchpack to select each special program. Check each LED illuminates as appropriate. If the fault persists, install a new terrain response switchpack