Trailer Jockey Operators Handbook
91
4-5.5 T
RANSMISSION
D
IAGNOSTICS
The transmission pushbutton shift pad (Figure 3-1) can be
used to display transmission diagnostic codes to assist in trou-
bleshooting transmission problems. Follow these procedures
to access the diagnostic codes. Table 4-4 contains a list of
codes and their meanings.
Be sure to record all codes as they are displayed. More than
one code may be indicated.
a. Stop vehicle and apply parking brake.
b. Simultaneously press the ⇑ (Up arrow) and ⇓(Down
arrow) buttons TWICE. After a few seconds, the digital
display will cycle between three codes, as listed in Table
4-4.
c. To advance to the next code, press the MODE button for
approximately three seconds.
102
{2}
Intake Manifold 1 Pressure -
Data Erratic, Intermittent, or
Incorrect. The ECM has
detected an intake manifold
pressure signal that is too high
or low for current engine
operating conditions.
Engine power derate.
Table 4-4 Transmission Diagnostic Codes
Code Description
Check
Trans
Light
Description
C1312 Retarder Request
Sensor Failed Low
No May inhibit retarder
operation if not using
C1313 Retarder Request
Sensor Failed High
No May inhibit retarder
operation if not using
P0122 Pedal Position Sensor
Low Voltage
No Use default throttle values.
Freezes shift adapts.
Table 4-3 CM2150 System Fault Codes (Cont.)
Fault
Code Reason Effect
To Next Page
Loading...
