(b) If there is a ground signal:

 - do a check and repair the wiring from the BSCU (10GG) to the handwheel transmitter unit (1GC) pins AA/10G, 9G to A/J, H (Ref. ASM 32-51/01).
 **ON A/C ALL
 B. Test
 (1) Do the test given in Para. 3.A.

 TASK 32-51-00-810-806
 Pushbutton of the F/O Nosewheel-Steering Handwheel Inoperative
 1. Possible Causes
_______________
 - XMTR UNIT-N/W STRG HANDWHEEL,F/O (2GC)

 - BSCU (10GG)

 - wiring from the handwheel transmitter unit (2GC) pin A/K to the ground terminal

 - wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 32-42-34-000-001 Removal of the Braking/Steering Control Unit (BSCU) (10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit
 (BSCU) (10GG) AMM 32-46-00-740-001 BITE Test of the BSCU AMM 32-51-11-000-001 Removal of the Transmitter Unit - Nose Wheel Steering
 Handwheel (1GC,2GC) AMM 32-51-11-400-001 Installation of the Transmitter Unit - Nose Wheel Steering Handwheel (1GC,2GC) ASM 32-51/01
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-220, 301-399,
 A. If the test gives the maintenance message FO STEERING HANDWHEEL:
 (1) Replace the XMTR UNIT-N/W STRG HANDWHEEL,F/O (2GC) (Ref. AMM TASK 32-51-11-000-001) and (Ref. AMM TASK 32-51-11-400-001).

 (2) If the fault continues:

 - replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞32-51-00∞∞∞∞∞∞∞∞∞∞Page 213
 May 01/05 CES (3) If the fault continues:

 - do a check for a ground signal at pin A/K of the handwheel transmitter unit (2GC) (Ref. ASM 32-51/01).
 (a) If there is no ground signal:

 - repair the wiring from the handwheel transmitter unit (2GC) pin A/K to the ground terminal (Ref. ASM 32-51/01).

 (b) If there is a ground signal:

 - do a check and repair the wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC) pins AA/10F, 9F to A/H, J (Ref. ASM 32-51/01).
R **ON A/C 106-149, 221-299, 401-499,
 A. If the test gives the maintenance message F/O STEERING
 HDWL(2GC)/BSCU(10GG):

 (1) Replace the XMTR UNIT-N/W STRG HANDWHEEL,F/O (2GC) (Ref. AMM TASK 32-51-11-000-001) and (Ref. AMM TASK 32-51-11-400-001).

 (2) If the fault continues:

 - replace the BSCU (10GG) (Ref. AMM TASK 32-42-34-000-001) and (Ref. AMM TASK 32-42-34-400-001).

 (3) If the fault continues:

 - do a check for a ground signal at pin A/K of the handwheel transmitter unit (2GC) (Ref. ASM 32-51/01).
 (a) If there is no ground signal:

 - repair the wiring from the handwheel transmitter unit (2GC) pin A/K to the ground terminal (Ref. ASM 32-51/01).

 (b) If there is a ground signal:

 - do a check and repair the wiring from the BSCU (10GG) to the handwheel transmitter unit (2GC) pins AA/10F, 9F to A/H, J (Ref. ASM 32-51/01).
 **ON A/C ALL
 B. Test
 (1) Do the test given in Para. 3.A.

 TASK 32-51-00-810-807

 Loss of the Signal from the ELAC 1 to the BSCU (identified by the BSCU-A)
 1. Possible Causes
_______________
 - BSCU (10GG)

 - wiring from the BSCU (10GG), pins AA/15J, 15H, 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) (10GG) AMM 32-42-34-400-001 Installation of the Braking/Steering Control Unit
 (BSCU) (10GG)
 AMM 32-46-00-740-001 BITE Test of the BSCU
 ASM 32-51/01

 3. Fault Confirmation
__________________
 A. Test
 (1) Do the BITE test of the BSCU (Ref. AMM TASK 32-46-00-740-001).
　
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