Failure of the BAT1 FAULT Indication Circuit

TASK 24-38-00-810-826-A
Failure of the BAT1 FAULT Indication Circuit

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 24-38-00-710-001	Operational Test of the Battery Charge Limiter (BCL), (with the CFDS)
ASM 243801
AMM 24-38-34-000-001	Removal of the Battery Charge Limiter (BCL)
AMM 24-38-34-400-001	Installation of the Battery Charge Limiter (BCL)
AMM 33-14-33-000-001	Removal of the Annunciator-Light Test and Interface-Board
AMM 33-14-33-400-001	Installation of the Annunciator-Light Test and Interface-Board

3. Fault Confirmation
Subtask 24-38-00-710-092-A

A. Test
(1) Do the operational test of the BCL1 AMM 24-38-00-710-001.

4. Fault Isolation
Subtask 24-38-00-810-075-A

A. If the test gives the maintenance message BOARD 5LP/BCL1 CIRCUIT:

(1) If the fault continues:

replace the BOARD-ANN LT TEST & INTFC [5LP] AMM 33-14-33-000-001 and AMM 33-14-33-400-001.

(2) If the fault continues:

do a check of the wiring from the circuit breaker (9PB2) to the pin A/H of the BCL1 (1PB1) ASM 243801.

(a) If there is no continuity:

(b) If there is continuity:

Subtask 24-38-00-710-093-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:26:48 UTC