Failure of the Electrical Wiring between the Essential TR Contactor and the BCL 1

TASK 24-38-00-810-805-A
Failure of the Electrical Wiring between the Essential TR Contactor and the BCL 1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 24-34-55-000-001	Removal of the Essential TR Contactor
AMM 24-34-55-400-001	Installation of the Essential TR Contactor
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)

3. Fault Confirmation
Subtask 24-38-00-710-058-A

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

4. Fault Isolation
Subtask 24-38-00-810-054-A

A. If the test gives the maintenance message CHECK CONTACTOR 3PE/BCL1 CIRCUIT:

(1) If the fault continues:

(a) If the fault continues:

do a check and repair the wiring from BCL 1 pin A/Z to essential TR contactor pin B/15, and from essential TR contactor pin B/17 to the ground ASM 243801.

Subtask 24-38-00-710-059-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:26:47 UTC