CEL NORMAL AND HISTORICAL CODES DISPLAYED ON DDR.

TM 9-2320-364-20-1

2-13. DDEC II TROUBLESHOOTING (CONT).

C1 CEL NORMAL AND HISTORICAL CODES DISPLAYED ON DDR.

INITIAL SETUP

Tools and Special Tools

Equipment Condition

Reader, Diagnostic (Item 53, Appendix G)

Engine OFF, (TM 9-2320-364-10)

Parking brake applied, (TM 9-2320-364-10)

References

Wheels chocked, (TM 9-2320-364-10)

TM 9-2320-364-10

START

KNOWN INFO

TEST OPTIONS

CEL normal and historical

DDR test.

Does CEL stay on longer

codes displayed on DDR.

than 5 seconds or come back

REASON FOR QUESTION

on after engine warms up?

POSSIBLE PROBLEMS

Running engine might make

historical codes active.

Go to Step 2

of this Fault.

YES

Read active codes

while CEL is on.

Go to Fault Index

2-428