Fault Message:

[ACSC1-A] LH PCK IN PRESS XDCR /WRG

Fault Code:

2161415ECS

Associated CAS:

L PACK AUTO FAIL
(Caution)

L PACK FAULT
(Advisory)

Left Pack Inlet Pressure Transducer has been detected out of range by Air Conditioning System Controller (ACSC) 1.

• Pack Inlet Pressure Sensor 1 (MT65)
• Air Conditioning System Controller (ACSC) 1 (A87)
• Junction Box (JB5)
• Associated Wiring

Advisory Wire/Service Bulletin:

• AW700-21-0160 - "PACK FAULT" CAS message while CAIMS / OMS is active (Global Express / XRS - 9002 to 9312, 9314 to 9380, 9384 to 9429 and Global 5000 - 9127 to 9383, 9389 to 9400, 9404 to 9431 and 9998)

Forum Articles/Infoservice/Newsletter: None

1. Access CAIMS Systems Diagnostics and with PACK not running and cold verify if data is valid and compare with opposite side.

   1. If the data is same, check sense line for leakage and do close out.
   2. If the data is different, continue with next step.

2. Swap Pack Inlet Pressure sensor 1 with Pack Inlet Pressure sensor 2 and check data.

   1. If system checks are good, replace Pack Inlet Pressure sensor 1 and do close out.
   2. If fault remains, continue with next step.

3. Swap ACSC 1 with ACSC 2.

   1. If system checks are good, replace ACSC 1 and do close out.
   2. If fault remains, continue with next step.

4. Perform a wiring checks between Pack Inlet Pressure Sensor and ACSC 1.

   1. If the wiring checks are not good, replace the defective associated wiring and do close out.
   2. If the wiring checks are good, continue with next step.

5. Perform a wiring checks between Pack Inlet Pressure sensor and JB5.

   1. If the wiring checks are not good, replace the defective associated wiring and do close out.
   2. If the wiring checks are good, continue with next step.

6. Perform continuity check of JB5 circuit.

   1. If there is continuity, repair the defective associated wiring and do close out.
   2. If there is no continuity, continue with next step.

7. Replace JB5.
8. Do close out.