Table 2-12. DDEC II System Code Index (CONT).

TM 9-2320-364-20-1

Table 2-12. DDEC II System Code Index (CONT).

Code

Effected

Number

Sensor

Description

Timing Reference (TRS)

The number TRS pulses received per revolution was

incorrect or completely missing. One pulse per cylinder per

revolution is required.

Synchronous Reference (SRS)

Did not receive an SRS pulse on every firing of the #1 cylinder.

HIGH OIL TEMPERATURE - System running for 2 seconds

with the oil temperature greater than a calibrated limit.

LOW OIL PRESSURE - Engine running with the oil pressure

less than the limit (different limits at different RPM's) for 7

seconds.

LOW BATTERY VOLTAGE - Engine running with low

battery voltage (less than 10 volts) for more than 30 seconds.

EEPROM ERROR - An error has been detected in the

EEPROM (Electrically Erasable, Programmable, Read Only

Memory) inside the DDEC ECM.

ECM FAILURE - The DDEC ECM was unable to correctly

convert sensor voltages into numbers for computer usage.

EEPROM ERROR - An error has been detected in the

EEPROM inside the DDEC ECM which affects the logging

of trouble codes.

ECM FAILURE - The DDEC ECM was unable to correctly

convert sensor voltages into numbers for computer usage.

61 thru 68

RESPONSE TIME TOO LONG - The response time of the

injector was longer than the maximum limit or the injector

never responded at all. Oil temperature must be greater

than 30 degrees C and battery voltage must be between 11

volts and 16 volts to log this code. The code is only logged

at less than 2000 RPM.

71 thru 78

RESPONSE TIME TOO SHORT - The response time of the

injector was shorter than the minimum limit. Oil

temperature must be greater than 30 degrees C and battery

voltage must be between 11 volts and 16 volts to log this

code. The code is only logged at less than 2000 RPM.

(b)

When the reader powers up, observe the data readout window. It will remain on for several

seconds. If the reader does not power up, check connections and be sure the ENGINE switch is

ON.

MPSI PRO - LINK 9000

SOFTWARE COPYRIGHT

1989-91 VERSION 3.0

DDEC I AND DDEC II

Data Readout Window

2-101