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 324 of 1176

TM 9-2320-361-24-1

0018 00

0018 00-20

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).

STARTER CIRCUIT TESTS (Contd)

NG80

TK

MODE

DO CURRENT PROBE OFFSET:

• Connect cable W5 to batteries.

• Turn off all vehicle electrical power.

• Dial 90 into TEST SELECT switches.

• Press and hold TEST until CAL message appears

on the display.

• Release TEST.

• Wait for offset value to appear.

• Is offset value within limits of –225 and +225?

3

CHECK STARTER CIRCUIT:

• Dial 90 into TEST SELECT switches.

• Crank engine for a few seconds with fuel shutoff.

• Is starter circuit above 100 amps?

4

NO

YES

YES

NO

TEST NO.

TEST

89

90

0–45 VOLTS DC

0–1500 AMPS DC

NG130

• Proceed to TM 9-4910-571-12&P

for offset fault isolation.

• Error Message E013 displayed in step 2 indicates

short circuit, frozen starter, or tight engine.

• Check wiring to starter for short circuits. Repair

as necessary (WP 0090 00).

• If wiring is OK, proceed to Engine Tightness Test

NG 130.

PROMPTING

MESSAGE

NOTE

After completing repair, rerun GO Chain

tests (WP 0017 00) to verify that problem

is fixed and no other problems exist.

• Proceed to step 5.

5