Figure 4-17 (2 dots, dash, 3 dots, dash, dot) Temperature Switch Defective.

TB 9-6115-644-13

TEMPERATURE SWITCH

DEFECTIVE

NOT OK

REMOVE AND REPLACE WIRING

CHECK WIRING HARNESS

HARNESS (REFER TO

(PARAGRAPH 4-16)

REPLACE HEATER

(PARAGRAPH 4-10)

Figure 4-17 (2 dots, dash, 3 dots, dash, dot) Temperature Switch Defective.

CONTROL UNIT DEFECTIVE

NOT OK

REMOVE AND REPLACE WIRING

CHECK ALL WIRING

HARNESS (REFER TO

HARNESS CONNECTIONS

(PARAGRAPH 4-16)

REPLACE CONTROL UNIT

(PARAGRAPH 4-9)

Figure 4-18 (4 dashes) Control Unit Defective.

CONNECTION ERROR

NOT OK

CHECK WIRING HARNESS

REMOVE AND REPLACE ALL

CONNECTIONS

CONNECTORS

Figure 4-19 (dot, dash, 3 dots, dash, 2 dots) Connection Error.

4-17

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