FUEL PUMP AND IGNITION DRIVE MOTOR WILL NOT START WITH HEATER CONTROL SWITCH IN HEATER ON POSITION.

4. FUEL PUMP AND IGNITION DRIVE MOTOR WILL NOT START

WITH HEATER CONTROL SWITCH IN HEATER ON POSITION.

Step 1. Check wire No. 3 for continuity using the follow-

ing procedures:

a. Remove thermal delay relay tube TD1 from its

socket.

b. Use a multimeter to check continuity between

TD1 socket, hole 2, and switch S4-3.

Replace wire No. 3 from S4, terminal 3, to

terminal delay relay tube TD1 socket, hole 2,

if anything other than continuity is mea-

sured.

Reinstall thermal delay relay tube TD1.

2-11

TM 3-4230-209-30&P