EVAPORATOR ASSY WIRING HARNESSES AND BULKHEAD CONNECTORS (Continued)

TM 5-4120-359-14

a. Removal

(1) To remove the P4 to J7 wiring harness:

Disconnect the two quick-disconnect terminals to the air temperature sensing probe.

Disconnect plug P4 from the J4 connector on the electrical module.

(2) To remove the P8 to P9 wiring harness:

Disconnect the plug P9 from the J3 thru-bulkhead connector.

(3) To remove the J9 thru-bulkhead connector:

Disconnect the P9A plug from inside the access box.

Using a screwdriver, socket, and ratchet, remove the four screws and lock nuts.

Carefully remove the thru-bulkhead connector and gasket.

(4) To remove the J2 thru-bulkhead connector:

Disconnect the P2 and P2A plugs from the top and bottom of the connector.

Using a screwdriver, socket, and ratchet, remove the four screws and lock nuts.

Carefully remove the thru-bulkhead connector and gasket.

b. Inspect/Test

(1) Check connectors for general condition, loose, broken, or missing contacts. Replace connectors if damaged.

(2) Check individual wires for loose solder connections, cut or frayed insulation, and cut or broken wires.

(3) See wiring diagram figure 4-4 and continuity test individual wires. Repair or replace wires with no continuity.

(4) Check that gaskets are in good condition. Replace them if they are torn, missing, or otherwise damaged.

Repair.

(1) See paragraph 4-4 for general wire repair instructions.

(2) See table 4-2 Wire List for wire lengths and terminal information when individual wires are replaced.

d. Installation

(1) To install the J2 thru-bulkhead connector

Line up the holes in the gasket, connector, and evaporator housing.

Using a screwdriver, socket and ratchet, install the four screws and lock nuts.

Reconnect the P2 and P2A plugs to the top and bottom of the thru-bulkhead connector.

(2) To install the J9 thru-bulkhead connector:

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