Test H: DTCs B29A1, B29AB, B29A3 and B29AD - Suppressor Left/Right Circuit Short to Ground/ Low Resistance - Loop #2
PINPOINT TEST H: DTCS B29A1, B29AB, B29A3 AND B29AD - SUPPRESSOR LEFT/RIGHT CIRCUIT SHORT TO GROUND/ LOW RESISTANCE - LOOP #2H1-H2:
H2-H4:
Normal Operation
The fire suppression module (FSM) checks all of the fire suppressor circuits for faults. If the FSM detects a short to ground on the LH fire suppressor squib 2 circuits, it stores diagnostic trouble code (DTC) B29A1 in memory and illuminates the fire suppression system indicator. If the FSM detects a low resistance condition between the LH fire suppressor squib 2 circuits, it stores DTC B29A3 in memory and illuminates the fire suppression system indicator. If the FSM detects a short to ground on the RH fire suppressor squib 2 circuits, it stores DTC B29AB in memory and illuminates the fire suppression system indicator. If the FSM detects a low resistance condition between the RH fire suppressor squib 2 circuits, it stores DTC B29AD in memory and illuminates the fire suppression system indicator.
Possible Causes
- circuit 2326 (LG) short to ground
- circuit 2326 (LG) short to circuit 2327 (BK/WH)
- circuit 2327 (BK/WH) short to ground
- circuit 2328 (OG) short to ground
- circuit 2328 (OG) short to circuit 2329 (DG)
- circuit 2329 (DG) short to ground
- RH fire suppressor
- LH fire suppressor
- FSM