Loss of the Brake Temperature Monitoring on Wheels 1 and 2

TASK 32-47-00-810-806-A
Loss of the Brake Temperature Monitoring on Wheels 1 and 2

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-46-00-740-001	BITE Test of the BSCU
ASM 324701
AMM 32-47-18-000-001	Removal of the Brake Temperature Monitoring Unit
AMM 32-47-18-400-001	Installation of the Brake Temperature Monitoring Unit

3. Fault Confirmation
Subtask 32-47-00-740-060-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 32-47-00-810-055-C

A. If the test gives the maintenance messages BRAKE TEMP SENSOR1(5GW)/BTMU(3GW) and BRAKE TEMP SENSOR2(7GW)/BTMU(3GW):

Replace the MONITORING UNIT-BRK TEMP, L [3GW] AMM 32-47-18-000-001 and AMM 32-47-18-400-001.

(1) If the fault continues:

Do a check and repair the wiring from the BTMU (3GW) pin A/A to the first terminal block ASM 324701.

(2) If the fault continues:

Do a check and repair the wiring from the BTMU (3GW) to the BSCU (10GG) pin A/B to pin AB/11C ASM 324701.

Subtask 32-47-00-740-061-A

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

[Rev.8 from Aug 2018] 2026.04.04 04:31:46 UTC