DIGITAL DIESEL ELECTRONICS DDE 2.1 F2: TROUBLE CODE TABLE
| Trouble Code | Information Sensor |
|---|---|
| Cause of Fault | Remedy in |
F0: DATA LIST
| No. | Trouble Code Storage when... | |
|---|---|---|
| 55 | REPLACE | |
| ECU | - | · Coupling, between microprocessors 1 and 2 in control unit not plausible |
· Condition must be fulfilled for at least 0.5 s
Effects:
· Failure of microprocessor 1: output is reduced and idle speed increased.
· Failure of microprocessor 2: output is reduce
Note:
In both cases, the driveability is compromised.
or
· Coupling between microprocessors 1 and 3 not plausible
· Condition must be fulfilled for at least 0.5 s
Effect:
The engine is switched off.
or
· Hardware fault in microprocessor EEPROM cells
· Condition must be fulfilled for at least 0.5 s
Effect:
| · The control unit does not perform any more regulation. |