Nosewheel Steering Deactivation Inoperative

TASK 32-51-00-810-813-A
Nosewheel Steering Deactivation Inoperative

1. Possible Causes

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 32-51-00-720-005	Functional Test of the Nose-Wheel-Steering Deactivation Electrical-Box
ASM 325101
AMM 32-51-12-000-001	Removal of the Nose - Wheel Steering Electrical Deactivation - Box
AMM 32-51-12-400-001	Installation of the Nose - Wheel Steering Electrical Deactivation - Box

3. Fault Confirmation
Subtask 32-51-00-740-070-A

A. Test
Do the functional test of the nose wheel steering deactivation electrical box AMM 32-51-00-720-005.

4. Fault Isolation
Subtask 32-51-00-810-062-A

A. If during the test, the N.WHEEL STEER DISC memo indication does not come into view on the upper ECAM DU:

replace the ELEC BOX-N/W STEERING,DEACTIVATION [5GC] AMM 32-51-12-000-001 and AMM 32-51-12-400-001.

(1) If the fault continues:

do a check for a ground signal at pin A/C of the electrical box (5GC) ASM 325101.

(a) If there is no ground signal:

repair the wiring from the electrical box (5GC) pin A/C to the ground terminal ASM 325101.

(b) If there is a ground signal:

do a check and repair the wiring from the BSCU (10GG) to the electrical box (5GC) pin AB/8D to pin A/D ASM 325101.

(2) If the fault continues:

Subtask 32-51-00-740-071-A

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

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