SRT45 Off-Highway Truck
3-33
Safety, Operation and Maintenance Manual
should be corrected before the machine is
operated further. Watch the oil temperature
gauge when operating on upgrades, also. If
the oil temperature goes into the red zone
(135°C -165°C; 275°F- 392°F), select the
range which will limit upshifts to the highest
range in which the transmission will operate
within the normal temperature range. If
upshifting must be consistently limited to
ranges lower than normal for the loads and the
grades encountered to prevent overheating
the transmission oil, the causes should be
determined and corrected.
3.13.4 Retrieving Diagnostic Codes
Diagnostic fault codes can be retrieved from
the CEC2 system using the gear shift selector
or by plugging in the diagnostic data reader
(DDR). To obtain diagnostic codes using the
gear shift selector:
※
Check transmission warning indicator on
dash will illuminate when ECU detects a fault.
※
Stop truck and select 'Neutral'.
※
Press diagnostic button (1) on gear shift
selector. Display (2) on gear shift selector will
flash one digit at a time.
※
Display starts with code position D1, D2,
etc, followed by the two digit main code, then
the two digit subcode.
※
To advance to the next code, press the
mode button (3). Up to five codes can be
stored.
※
Active codes are indicated by illumination of
the mode light (4).
3.13.5 Clearing Diagnostic Codes
To clear active codes, press and hold mode
button (4) for 3 to 5 seconds.
To clear inactive codes, press and hold mode
button (4) for 8 to 10 seconds.
To exit diagnostic mode, press diagnostic
button (6). Refer to table for diagnostic code
description.
Controls and Operating