Loss of the Signal from the ELAC1 #amp# 2 to the BSCU (Identified by the SYS2)

TASK 32-51-00-810-817-A
Loss of the Signal from the ELAC1 & 2 to the BSCU (Identified by the SYS2)

1. Possible Causes

BSCU [10GG]
wiring from the BSCU (10GG) pins AA/14B, 1 4C, 7B, 7J, 15B, 15C, 6J, 6B to the first terminal block

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-42-34-000-001	Removal of the Braking/Steering Control Unit (BSCU)
AMM 32-42-34-400-001	Installation of the Braking/Steering Control Unit (BSCU)
AMM 32-46-00-740-001	BITE Test of the BSCU
ASM 325101

3. Fault Confirmation
Subtask 32-51-00-740-078-A

A. Test
(1) Do a reset of the BSCU with the A/SKID AND NOSE WHEEL switch (5GG).
(2) Do the BITE test of the BSCU AMM 32-46-00-740-001.

4. Fault Isolation
Subtask 32-51-00-810-068-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message BSCU : NO DATA FROM ELAC1 & 2:

(1) If the fault continues:

do a check and repair the wiring from the BSCU (10GG) pins AA/14B, 1 4C, 7B, 7J, 15B, 15C, 6J, 6B to the first terminal block ASM 325101.

Subtask 32-51-00-810-068-B ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ELAC1+2(2CE1+2)/BSCU(10GG):

(1) If the fault continues:

do a check and repair the wiring from the BSCU (10GG) pins AA/14B, 1 4C, 7B, 7J, 15B, 15C, 6J, 6B to the first terminal block ASM 325101.

Subtask 32-51-00-740-079-A

B. Test
Do the test given in Para. 3.A.

[Rev.8 from Aug 2018] 2026.04.04 04:31:48 UTC