W DOC AIRBUS | TSM A320F

Failure of the GPWC Pin Programming


TASK 34-48-00-810-830-A
Failure of the GPWC Pin Programming


1. Possible Causes
  • GPWC [1WZ]
  • wiring at the programming pins of the GPWC (1WZ)
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
AMM 34-48-00-740-002
BITE Test of the GPWS
ASM 344801
AMM 34-48-34-000-001
Removal of the GPWC
AMM 34-48-34-400-001
Installation of the GPWC
3. Fault Confirmation
Subtask 34-48-00-740-074-C
A. Test
   (1) Do the BITE test of the Enhanced GPWS AMM 34-48-00-740-002.
4. Fault Isolation
Subtask 34-48-00-810-092-A
A. If the BITE test gives the maintenance message WRG: PIN PROG/GPWC (1WZ):
   (1) If the fault continues:
  • do a check and repair the wiring at the programming pins of the GPWC (1WZ) ASM 344801.
Subtask 34-48-00-740-075-A
B. Do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:33:17 UTC