190 Troubleshooting
“PUMP: Trans Not OK”
The following is a
method for troubleshooting the failure mode identifier “
Pump: Trans not ok”.
Only basic tools are needed for this troubleshooting: a quality multimeter (preferably used with back
probe leads), assorted screwdrivers, and a set of cutting pliers (for removing zip ties).
N
OTE
:
Accurate diagnostic information will require use of the body serial number specific electrical
schematics. This ensures correct connection information as connector/wire numbers are
dependent on chassis manufacturer as well as whether a Labrie cab conversion has been
performed.
I
MPORTANT
:
Be sure to follow all appropriate lockout/tagout procedures (see Locking Out and Tagging Out the
Vehicle on page 26) as well as your standard shop/facility procedures before attempting this
procedure.
“Pump: trans not ok” indicates a breakdown in one of the two portions of the pump circuit.
Wire 104o originates at Node 10. When the pump switch is depressed, voltage is sent through wire
104o. Wire 104o is used to sense all safety features are met and terminates as an input into the
Transmission Control Module as “Pump Request Chassis”.
The 104 circuit acts as a request circuit to ask the chassis for a return signal after stating the body is
ready to allow pump engagement.
When the transmission parameters are met, a return signal via wire 149i sends voltage to two specific
locations. The first 149i runs to is Node 10 as input “Pump Running Chassis” and the second location
is spade location 1 of the pump relay.
A breakdown in either of these circuits will cause this error code to manifest.
It is important to note, specifically with wire 149i, the system may believe the pump is engaged but
due to a broken splice or other fault, the relay may not latch. This situation would prevent voltage
from passing through the relay to the dump valves/PTO, thus preventing hydraulic function even
though Node 10 is seeing power on wire 149i. This scenario would NOT result in a “
PUMP: TRANS
NOT OK” code.
Step #1) With the engine running, attempt to engage the pump and verify the complaint.
If the
display screen shows “PUMP: TRANS NOT OK”, continue to step #2.
Step #2) Cycle the key “OFF” and to the “ON” position only. Starting the engine is not necessary.
Summary of Contents for AUTOMIZER FULL EJECT
Page 1: ...AUTOMIZERTM FULL EJECT MAINTENANCE MANUAL ...
Page 2: ......
Page 3: ...AUTOMIZERTM FULL EJECT MAINTENANCE MANUAL ...
Page 36: ...28 Safety ...
Page 112: ...104 Lubrication ...
Page 139: ...Hydraulic System 131 Figure 5 23 Strainer assembly Strainer ...
Page 144: ...136 Hydraulic System Figure 5 27 Detecting cylinder internal leaks 1 2 3 4 5 A A A ...
Page 160: ...152 Hydraulic System 0 1 2345 62789 ELECTRO HYDRAULIC VALVE HD RH ARM ...
Page 161: ...Hydraulic System 153 0 1 2345 62789 ELECTRO HYDRAULIC VALVE CRUSHER PANEL HD RH ARM ...
Page 164: ...156 Hydraulic System ...
Page 176: ...168 Electric System Cab Console Control Wiring ...
Page 177: ...Electric System 169 Control Box ...
Page 178: ...170 Electric System Chassis ...
Page 179: ...Electric System 171 Tailgate Lighting ...
Page 180: ...172 Electric System Left Body SideWiring ...
Page 181: ...Electric System 173 Right Body Side Wiring ...
Page 182: ...174 Electric System Camera s Switchpack s Layout Option s AUTO 10 SEC INHIBIT AUTO ...
Page 204: ...196 Troubleshooting ...
Page 205: ...Troubleshooting 197 ...
Page 206: ...198 Troubleshooting ...
Page 230: ...222 Multiplexing ...
Page 254: ...246 Lifting Arm Figure 10 27 Standard lifting arm ...
Page 255: ...Lifting Arm 247 ...
Page 256: ...248 Lifting Arm ...