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 325 of 1176

TM 9-2320-361-24-1

0018 00

0018 00-21

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).

NO

YES

NO

YES

NO

YES

STARTER CIRCUIT TESTS (Contd)

NG80

TK

MODE

INSTALL TEST PROBE CABLE:

• Connect P1 of test probe cable W2 to J4

on VTM.

• Short red and black clip leads together.

6

DO TEST PROBE CABLE OFFSET:

• 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?

7

CHECK STARTER VOLTAGE:

• Connect black clip lead of test probe cable to

negative battery terminal.

• Connect red clip lead of test probe cable to positive

terminal of starter motor.

• Press TEST.

• Crank engine and observe displayed voltage.

• Is starter voltage above 17 volts?

8

• Check switches, wiring, and relays to starter solenoid.

If these are OK, replace starter (WP 0088 00).

• Proceed to step 9.

• Proceed to step 10.

10

PROMPTING

MESSAGE

NOTE

After completing repair, rerun

GO Chain tests (WP 0017 00)

to verify that problem is fixed

and no other problems exist.

• STE/ICE-R is bad. Replace.

CHECK STARTER SOLENOID:

• Attempt to start engine while listening

for clicks of starter solenoid.

• Does starter solenoid click?

5

9