TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 328 of 1176
TM 9-2320-361-24-1
0018 00
0018 00-24
SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE—
REPROGRAMMABLE STE/ICE-R NO-GO CHAIN TROUBLESHOOTING (Contd)
Table 2. STE/ICE-R No-Go Chain Test (Contd).
BATTERY TESTS
NG81
NOTE
Test GO 1 (WP 0017 00), VTM Connections and Checkout,
must be performed before running any other STE/ICE-R test.
NOTE
Each battery is best tested individually.
During this test, fuel supply must be
shutoff to keep engine from starting.
INSTALL TEST PROBE CABLE W2 DO OFFSET TEST:
• Connect test probe cable W2 to J4 on VTM.
• Short red and black clip leads of W2 together.
• Dial 89 into TEST SELECT switches.
• Press and hold TEST until CAL message
appears on display.
• Release TEST.
• Wait for offset value to appear on display.
• Is offset value within limits of –6.8 to +6.8?
1
CONDITION CURRENT PROBE – DO OFFSET:
• Clamp current probe around battery cable
that connects the vehicle batteries in series.
• Point arrow on current probe toward the
negative post as shown on the next page.
• Press TEST.
• Attempt to crank engine for several cycles.
• Is number displayed greater than 9.6 volts?
2
• Connect red clip lead of cable W2 to
positive post of battery being tested.
• Connect black clip lead of cable W2 to
negative post of battery being tested.
• Proceed to the next page.
NO
YES
NO
YES
TEST NO.
TEST
77
79
89
90
BATTERY RESISTANCE
BATTERY RESISTANCE CHANGE
0–45 VOLTS DC
1–1500 AMPS DC
PROMPTING
MESSAGE
• STE/ICE-R is bad. Replace.
NOTE
See following page for note
and hook up diagram.
• Check battery electrolyte level.
• Clean battery terminals.
• Refer to Troubleshooting Index (WP 0009 00) to
check battery specific gravity.
• Charge battery, if necessary.
• Retest.
• If 9.6 volts or greater is present, go to step 3. If
less, replace battery (WP 0127 00).
TK
MODE
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