B29A8

Fire Suppression System

DTC Charts

Fire Suppression System Module (FSSM) DTC Chart

NOTE: When the Fire Suppression System Module (FSSM) detects a system fault, it causes the Fire Suppression Indicator Lamp (FSIL) to flash a coded sequence of Lamp Fault Codes (LFCs). The FSSM is capable of communicating an LFC for each specific fault that is present, including each flagged fault of a bit-mapped DTC (except for DTCs B1317 and B1318 for which the FSIL remains lit continuously). The LFC is made up of 2 numbers. Each of the 2 numbers is 1 or 2 digits, depending on the fault that is present. The 2 numbers that make up an LFC are separated by a hyphen (-) to clearly distinguish between the 2 numbers. The first number is flashed with a 0.5-second interval between pulses. There is a 2-second pause before the second number is flashed, which also has a 0.5-second interval between pulses. There is a 5-second pause between each display of an LFC and each LFC is flashed 3 times after which the FSIL remains lit for the remainder of the key-on cycle.