Sxxx 1 - INJECTOR RESPONSE TIME SHORT

TM 9-2320-364-20-1

2-14. DDEC III/IV TROUBLESHOOTING (CONT).

Section IV. TROUBLESHOOTING CHARTS (Cont.)

E. FLASH CODE:

J1587 CODE:

Sxxx 1 - INJECTOR RESPONSE TIME SHORT

NOTE - This chart is only to be used if:

1) All basic mechanical checks and physical inspections have been performed with no problem found; and,

2) Diagnosis of DDEC III/IV was started at step START-1, pg 2-539, and you have now been referred here.

NOTE - Troubleshooting procedures for Code 71 is the same for Code 61.

STEP/SEQUENCE

RESULT

WHAT TO DO NEXT

71-1

Visual Inspection

Check fuel/water separator for

Fuel system is free of

Go to 71-2.

water and/or oil in the fuel

aerated fuel and/or

according to Preventive

contamination.

Maintenance Checks and

Services (TM 9-2320-364-10).

Remove fuel tank cap and check

Fuel system is not free

If there is water in fuel, drain

fuel strainer for debris.

of aerated fuel and/or

water and fuel/water separator.

contamination.

If there is debris in fuel strainer,

clean and fill fuel tank

(para 4-8).

Refer to fuel system

troubleshooting (para 2-17)

Then go to 71-30.

71-2

Alternator Test

Start engine (TM 9-2320-364-10).

-- If 10 to 14 vdc are not indicated

Alternator or electrical

Go to 71-3.

on the 12V voltmeter and 22 to

charging system is

28 vdc are not indicated on the

operating properly.

24V voltmeter, turn OFF

ENGINE switch and go to

electrical system troubleshooting

(para 2-19).

-- If 10 to 14 vdc are indicated on

Alternator or electrical

Refer to electrical

the 12V voltmeter and 22 to 28

charging system is

troubleshooting (para 2-20,

vdc are indicated on the 24V

not operating properly.

table 2-38). Then go to 71-30.

voltmeter, alternator is ok.

Turn OFF ENGINE switch.

2-751