Fire Suppression Module (FSM) Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When the FSM detects a system fault, it causes the fire suppression system indicator to flash a coded sequence of lamp fault codes (LFC). The FSM is capable of communicating a LFC for each specific fault that is present, including each flagged fault of a bit-mapped diagnostic trouble code (DTC) (except for DTCs B1317 and B1318 for which the indicator 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 a 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 a LFC and each LFC is flashed 3 times after which the fire suppression system indicator remains lit for the remainder of the key-on cycle.
FIRE SUPPRESSION MODULE (FSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | LFC | Description | Source | Action |
|---|---|---|---|---|
| B1231 | 1-3 | Event Treshold Exceeded | FSM | The fire suppression system was activated. INSTALL a new FSM and new LH and RH fire suppressors. REFER to FIRE SUPPRESSION MODULE and FIRE SUPPRESSOR . |
| B1317 | Continuous | Battery Voltage High | FSM | Refer to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Continuous | Battery Voltage Low | FSM | Refer to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1342 | 1-2 | ECU Is Faulted | FSM | INSTALL a new FSM. REFER to FIRE SUPPRESSION MODULE . |
| B1921 | 1-4 | Air Bag Diagnostic Monitor Ground Circuit Open | FSM | REFER to INSTRUMENT CLUSTER . |
| B2477 | 5-4 | Module Configuration Failure | FSM | INSTALL a new FSM. REFER to FIRE SUPPRESSION MODULE . |
| B2792 | 12-11 | Cross Link Between Firing Loops | FSM | GO to PINPOINT TEST J . |
| B2900 | 11-8 | VIN Mismatch | FSM | GO to PINPOINT TEST B . |
| B299A | 1-9 | Suppressor Left Circuit Open - Loop # 1 | FSM | GO to PINPOINT TEST C . |
| B299B | 8-7 | Suppressor Left Circuit Short to Battery - Loop # 1 | FSM | GO to PINPOINT TEST F . |
| B299C | 8-3 | Suppressor Left Circuit Short to Ground - Loop # 1 | FSM | GO to PINPOINT TEST G . |
| B299E | 8-11 | Suppressor Left Circuit Resistance Low on Squib-Loop # 1 | FSM | GO to PINPOINT TEST I . |
| B299F | 8-1 | Suppressor Left Circuit Open - Loop #2 | FSM | GO to PINPOINT TEST E . |
| B29A0 | 8-8 | Suppressor Left Circuit Short to Battery - Loop # 2 | FSM | INSTALL a new FSM. REFER to FIRE SUPPRESSION MODULE . |
| B29A1 | 8-4 | Suppressor Left Circuit Short to Ground - Loop # 2 | FSM | GO to PINPOINT TEST H . |
| B29A3 | 8-12 | Suppressor Left Circuit Resistance Low on Squib-Loop # 2 | FSM | GO to PINPOINT TEST H . |
| B29A4 | 2-1 | Suppressor Right Circuit Open - Loop # 1 | FSM | GO to PINPOINT TEST D . |
| B29A5 | 8-9 | Suppressor Right Circuit Short to Battery - Loop # 1 | FSM | GO to PINPOINT TEST F . |
| B29A6 | 8-5 | Suppressor Right Circuit Short to Ground - Loop # 1 | FSM | GO to PINPOINT TEST G . |
| B29A8 | 8-13 | Suppressor Right Circuit Resistance Low on Squib-Loop # 1 | FSM | GO to PINPOINT TEST I . |
| B29A9 | 8-2 | Suppressor Right Circuit Open - Loop #2 | FSM | GO to PINPOINT TEST E . |
| B29AA | 8-10 | Suppressor Right Circuit Short to Battery - Loop # 2 | FSM | INSTALL a new FSM. REFER to FIRE SUPPRESSION MODULE . |
| B29AB | 8-6 | Suppressor Right Circuit Short to Ground - Loop # 2 | FSM | GO to PINPOINT TEST H . |
| B29AD | 8-14 | Suppressor Right Circuit Resistance Low on Squib - Loop # 2 | FSM | GO to PINPOINT TEST H . |
| B29AE | 7-1 | Fire Suppression Manual Activation Switch Closed at Key On | FSM | CLEAR the DTCs. REPEAT the self-test. If DTC B29AE is set, INSTALL a new switch. Refer to FIRE SUPPRESSION MANUAL SWITCH . |
| B29AF | 5-1 | Fire Suppression Manual Activation Switch High Side Circuit Failure | FSM | GO to PINPOINT TEST K . |
| B29B0 | 7-9 | Fire Suppression Manual Activation Switch High Side Circuit Short to Battery | FSM | GO to PINPOINT TEST K . |
| B29B1 | 5-2 | Fire Suppression Manual Activation Switch Low Side Circuit Failure | FSM | GO to PINPOINT TEST K . |
| B29B2 | 7-2 | Fire Suppression Manual Activation Switch High Side Circuit Short to Ground | FSM | GO to PINPOINT TEST K . |
| B29B3 | None | Fire Suppression Indicator Lamp Circuit Failure | FSM | REFER to INSTRUMENT CLUSTER . |
| B29B4 | None | Fire Suppression Indicator Lamp Circuit Short to Battery | FSM | REFER to INSTRUMENT CLUSTER . |
| P0630 | 11-8 | VIN Not Programmed or Incompatible-ECM/PCM | FSM | GO to PINPOINT TEST B . |
| U1900 | 1-6 | CAN Communication Bus Fault - Receive Error | FSM | If any ABS module DTCs are present, REFER to VEHICLE DYNAMIC SYSTEMS . If no ABS module DTCs are present, REFER to MODULE COMMUNICATIONS NETWORK . |