0008
TM 1-1740-221-13&P&P
ENGINE TROUBLESHOOTING - (CONTINUED)
BRANCH 2.
2.
CONDITION/INDICATION
Did batteries load test satisfactory?
DECISION
YES Proceed to Step 3.
NO Remove and replace batteries.
BRANCH 3.
3.
Continuity test, all engine start circuit fuses, 3FU, 4FU and 6FU (WP 0121).
CONDITION/INDICATION
Is any fuse defective?
DECISION
NO Proceed to Step 4.
BRANCH 4.
4.
Inspect all start circuit wiring (FO-1) for loose connections, broken or corroded wiring and functional grounds.
CONDITION/INDICATION
Is start circuit wiring defective?
DECISION
YES Repair faulty wiring or connections (FO-1).
NO Proceed to Step 5.
BRANCH 5.
5.
CONDITION/INDICATION
Did relays ohms test satisfactory?
DECISION
YES Proceed to Step 6.
NO Replace defective CRS Park Relay or CRSI Start Interlock relay (WP 0122).
BRANCH 6.
6.
Remove center console panel (WP 0028). Place engine ignition in the start position, check for 12 volts at the
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