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TM 9-2320-364-34-1
Table 2-2. DDR Mode Index
Mode
Name
Description
Number
01
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.
02
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.
04
ENGINE RPM
This displays the engine crankshaft revolutions per minute as
determined from the timing reference sensor (TRS).
05
ECM VOLTAGE
This is the battery voltage available to the DDEC ECM.
07
TPS COUNTS
This is a digital value for the throttle position sensor (TPS).
Range is 0 to 225 counts.
07
TPS IN %
This value is the percent opening of the throttle as
determined from the throttle position sensor.
10
INJ RESP TIMES
This value is the fuel injector response time.
11
CYLINDER CUTOUT
Locates a cylinder whose output is different from other
cylinders.
15
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.
17
OIL PRS PSI (kPa)
Engine oil pressure is indicated in psi or kPa, depending on
which mode (English or Metric) you have chosen.
18
OIL TEMP
This readout indicates the temperature of the engine oil in
degrees Fahrenheit or Celsius, depending on which mode
you have chosen.
19
BOOST PSI (kPa)
Turbo boost pressure is indicated in psi or kPa, depending
on which mode you have chosen.
20
IDLE SPEED RPM
This is the engine idle RPM value.
Power take-off counts is a digital representation of the PTO
21
PTO COUNTS
sensor voltage. Range 0 to 225 counts.
22
PTO SET RPM
This is an indication of the set RPM for the power take-off.
This is an indication of the output command to the CEL.
30
CHECK ENG LHT
Readout is ON or OFF.
This is an indication of the status of the engine brake.
30
ENG BRK ENBLE
Readout is ON or OFF.
This is an indication of the output command to the CGL.
30
STOP ENG LHT
Readout is ON or OFF.
This is an indication of the signal from the synchronous
31
SRS RECEIVED
reference sensor is being received. Readout is YES or NO.
40
CLEAR CODES
This mode is used to clear all stored codes in the DDEC ECM.
2-13

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