Table 2-13. DDR Mode Index

TM 9-2320-364-20-1

Table 2-13. DDR Mode Index

Mode

Number

Name

Description

ACTIVE CODES

If there is a condition present that causes the CEL to be ON,

the condition is said to be active. An Active Code is set in

DDEC ECM memory. The readout is YES if any active

codes are present, and NO if there are none.

HISTORIC CODES

If a condition existed in the past to cause an active code, but

the condition is no longer present, the condition is called

historic. A Historic Code is set in DDEC ECM memory.

The readout is YES if any historic codes are present, and NO

if there are none. Engine protection codes (22,44, and 45)

will also store additional information, which will tell the

engine hours when the code was set, the duration the code

existed, and the number of times the code was logged.

ENGINE RPM

This displays the engine crankshaft revolutions per minute as

determined from the timing reference sensor (TRS).

ECM VOLTAGE

This is the battery voltage available to the DDEC ECM.

TPS COUNTS

This is a digital value for the throttle position sensor (TPS).

Range is 0 to 225 counts.

TPS IN %

This value is the percent opening of the throttle as

determined from the throttle position sensor.

INJ RESP TIMES

This value is the fuel injector response time.

FUEL TEMP

This readout indicates the temperature of the fuel entering

the engine in degrees Fahrenheit or Celsius, depending on

which mode (English or Metric) you have chosen.

OIL PRS PSI (kPa)

Engine oil pressure is indicated in psi or kPa, depending on

which mode (ENGLISH or METRIC) you have chosen.

OIL TEMP

This readout indicates the temperature of the engine oil in

degrees Fahrenheit or Celsius, depending on which mode

you have chosen.

BOOST PSI (kPa)

Turbo boost pressure is indicated in psi or kPa, depending

on which mode you have chosen.

IDLE SPEED RPM

This is the engine idle RPM value.

PTO COUNTS

Power take-off counts is a digital representation of the PTO

sensor voltage. Range 0 - 225 counts.

PTO SET RPM

This is an indication of the set RPM for the power take-off.

CHECK ENG LHT

This is an indication of the output command to the CEL.

Readout is ON or OFF.

ENG BRK ENBLE

This is an indication of the status of the engine brake.

Readout is ON or OFF.

STOP ENG LHT

This is an indication of the output command to the CGL.

Readout is ON or OFF.

SRS RECEIVED

This is an indication of the signal from the synchronous

reference sensor is being received. Readout is YES or NO.

CLEAR CODES

This mode is used to clear all stored codes in the DDEC ECM.

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