Incorrect Test Tune Inhibit Discrete Condition sent to MMR1

TASK 34-36-00-810-899-A
Incorrect Test Tune Inhibit Discrete Condition sent to MMR1

1. Possible Causes

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-83-34-000-001	Removal of the FMGC
AMM 22-83-34-400-001	Installation of the FMGC
AMM 34-36-00-740-003	BITE Test of the MMR
AWM 343601
AWM 343631
AMM 34-36-31-000-001	Removal of the ILS Receiver
AMM 34-36-31-400-001	Installation of the ILS Receiver

3. Fault Confirmation
Subtask 34-36-00-740-203-A

A. Test
(1) Do the BITE test of MMR1 AMM 34-36-00-740-003.

4. Fault Isolation
Subtask 34-36-00-810-170-A

A. If the test gives the maintenance message FMGC1(1CA1)/MMR1(40RT1):

(1) If there is no short to the ground at pin AB/15F:

(2) If there is a short to the ground at pin AB/15F:

Do a check and repair the wiring from MMR1 (40RT1) pin AB/15F to FMGC1 (1CA1) pin AB/15K AWM 343601.

(a) If the fault continues:

Subtask 34-36-00-740-204-A

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:33:04 UTC