|
| |
TM9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
FLASH CODE:
DDR DISPLAY:
SAE J1587 CODE:
75
ECM BATTERY VOLTAGE HIGH
PID: 168 FMI: 0
Indicates that the DDEC III ECM has detected that the main battery supply voltage to the ECM has exceeded the
recommended operating range.
FLASH CODE:
76
DDR DISPLAY
ENGINE OVERSPEED WITH ENGINE BRAKE
SAE J1587 CODE:
PID: 121 FMI: 0
Indicates that the engine RPM has exceeded the recommended safe operating range.
FLASH CODE:
DDR DISPLAY
SAE J1587 CODE:
85
ENGINE OVERSPEED
PID: 190 FMI: 0
Indicates that the engine RPM has exceeded the recommended safe operating range.
FLASH CODE: --
DDR DISPLAY
FRAM CHECKSUM INCORRECT
SAE J1587 CODE:
SID: 240 FMI: 2
Indicates that the ECM system operation software has been corrupted and is unable to operate. This diagnostic
condition is typically:
The ECM system programming operation failed to run to completion. Replace ECM (para 7-29.1).
FLASH CODE: --
DDR DISPLAY
INCOMPATIBLE CALIBRATION VERSION
SAE J1587 CODE:
SID: 253 FMI: 13
Indicates that the current ECM system operation software is not compatible with the engine calibration loaded in
the ECM. This diagnostic condition is typically:
The ECM programming process was performed in the incorrect order or did not run to completion. Replace ECM
(para 7-29.1).
FLASH
CODE:
--
DDR DISPLAY:
CALIBRATION CHECKSUM INCORRECT
SAE J1587 CODE:
SID: 253 FMI: 2
Indicates that the engine calibration loaded in the ECM has been corrupted and is unable to operate. This diag-
nostic condition is typically:
The engine calibration programming operation failed to run to completion. Replace ECM (para 7-29.1).
FLASH CODE: --
DDR DISPLAY:
FAILED EXTERNAL RAM
SAE J1587 CODE:
SID: 254 FMI: 0
Indicates that some or all of the memory circuitry that is external to the ECM microprocessor has failed and is
unable to operate. Replace ECM (para 7-29.1).
FLASH
CODE:
--
DDR DISPLAY
FAILED INTERNAL RAM
SAE J1587 CODE:
SID: 254 FMI: 1
Indicates that some or all of the memory circuitry that is internal to the ECM microprocessor has failed and is un-
able to operate. Replace ECM (para 7-29.1).
H-23
|
