Figure 4-28. Heater Test (Installed)

TM 5-4120-359-14

Figure 4-28. Heater Test (Installed)

(2) Using multimeter, measure resistance between pins in P3 connector: (Pin G is not used.)

A to C, Resistance should be 13 to 19 ohms.

A to B, Resistance should be 13 to 19 ohms.

B to C, Resistance should be 13 to 19 ohms.

D to E, Resistance should be 20 to 26 ohms.

D to F, Resistance should be 20 to 26 ohms.

E to F, Resistance should be 20 to 26 ohms.

(3) If any of the above tests show a failure proceed to paragraph 4-32.

Follow-on Procedures: 1. Install top evaporator cover. (See paragraph 3-21.)

2. Connect power.

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