PREVOST X3 Commuter, Operating Manual

Page: 223 / 228

Allison Transmission Other Features B-7
DOB 1300-1556 PA-1639 Operator's Manual 2020 X3-45 Commuter
DTC Description
CHECK
Light
Inhibited Operation
Description
P0703 Brake Switch Circuit Malfunction No
No Neutral to Drive
shifts
for refuse
packer. TCM inhibits
retarder operation if a
TPS
code is also
active.
P0708 Transmission Range Sensor Circuit High Input Yes
Ignore defective strip
selector inputs
P070C Transmission Fluid Level Sensor Circuit – Low Input No None
P070D Transmission Fluid Level Sensor Circuit – High Input No None
P0712
Transmission Fluid Temperature Sensor Circuit Low
Input
Yes Use default sump temp
P0713
Transmission Fluid Temperature Sensor Circuit High
Input
Yes Use default sump temp
P0715 Turbine Shaft Speed Sensor Circuit Yes
DNS, Lock in current
range
P0716 Turbine Shaft Speed Sensor Circuit Performance Yes
DNS, Lock in current
range
P0717 Turbine Shaft Speed Sensor Circuit No Signal Yes
DNS, Lock in current
range
P071A RELS Input Failed On Yes Inhibit RELS operation
P071D General Purpose Input Fault Yes None
P0720 Output Shaft Speed Sensor Circuit Yes
DNS, Lock in current
range
P0721 Output Shaft Speed Sensor Circuit Performance Yes
DNS, Lock in current
range
P0722 Output Speed Sensor Circuit No Signal Yes
DNS, Lock in current
range
P0725 Engine Speed Sensor Circuit No
Default to turbine
speed
P0726 Engine Speed Sensor Circuit Performance No
Default to turbine
speed
P0727 Engine Speed Sensor Circuit No Signal No
Default to turbine
speed
P0729
Incorrect 6
th
Gear Ratio
Yes
DNS, Attempt 5
th
, then
3
rd
P0731
Incorrect 1
st
Gear ratio
Yes
DNS, Attempt 2
nd
,
then 5
th