TM 5-3805-280-24-1
Sub-System Diagnostics
POWER BOOST SWITCH
YES: Switch and harness
(S19) CHECK
are OK.
NO: Go to next step.
T118538 1921NOV98
Turn key switch OFF.
Disconnect 16-pin harness connector B from engine and pump controller.
Connect ohmmeter from pin 4 of harness connector B to ground.
Press power boost switch.
Does ohmmeter read continuity when switch is pressed?
9015
15
81
YES: Switch is OK.
Check harness wiring.
NO: Switch has failed.
Replace.
T118486 UN21NOV98
Remove right console bottom cover.
NOTE: Do not disconnect wires other than power boost wires.
Disconnect two leads from power boost switch.
Connect ohmmeter to both leads from switch.
Press switch button.
Does ohmmeter read continuity?
1/1
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