TM-9-2320-272-24-3

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4

JUNE 1998

TM-9-2320-272-24-3 - Page 164 of 799

TM 9-2320-272-24-3

4-67. FRONT WIRING HARNESS (M939A2) REPLACEMENT (Contd)

42.

Disconnect front harness connector (2) from turn signal control (1).

43.

Disconnect wire (4) from horn switch (3).

44.

Disconnect two wires (5) from electrical gauge circuit breaker (8).

45.

Disconnect two wires (6) from heater blower motor circuit breaker (7).

46.

Disconnect connector (10) from tachometer pulse sensor (9).

47.

48.

49.

50.

51.

NOTE

Perform step 47 for M936A2 vehicles only.

Disconnect wire (11) from warning signal lamp switch (12).

Disconnect three wires (17) from heater blower motor switch (18).

Disconnect two wires (19) from ether start switch wires (20).

Disconnect wire (13) from CTIS blackout connector (14).

Disconnect CTIS power supply connector (16) from CTIS wiring harness connecter (15).

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