PREVOST X3 Commuter, Operating Manual

Page: 227 / 228

Allison Transmission Other Features B-11
DOB 1300-1556 PA-1639 Operator's Manual 2020 X3-45 Commuter
DTC Description
CHECK
Light
Inhibited Operation
Description
P2736
Pressure Control Solenoid 5 (PCS5) Control Circuit
Open
Yes
Inhibit retarder
operation
P2738 Pressure Control Solenoid 5 (PCS5) Control Circuit Low Yes
Allow 2 through 6, N,
R. Inhibit retarder and
TCC operation
P2739 Pressure Control Solenoid 5 (PCS5) Control Circuit High Yes
Inhibit retarder
operation
P273F
Retarder Oil Temperature Sensor Over Temperature
Condition
No None
P2742 Retarder Oil Temperature Sensor Circuit – Low No
Use default retarder
temp values
P2743 Retarder Oil Temperature Sensor Circuit – High No
Use default retarder
temp values
P2761 TCC PCS Control Circuit Open Yes Inhibit TCC operation
P2763 TCC PCS Control Circuit High Yes Inhibit TCC operation
P2764 TCC PCS Control Circuit Low Yes
7- speed: Allow 2
through 6, N, R.
Inhibit TCC operation
P2789
Transmission Clutch Life Expired (Clutch Adaptive
Learning at Limit)
No None
P2793 Gear Shift Direction Circuit Yes
Ignores PWM input
from shift selector
P2808 Pressure Control Solenoid 6 (PCS6) Stuck Off Yes DNS, RPR
P2809 Pressure Control Solenoid 6 (PCS6) Stuck On Yes DNS, RPR
P2812
Pressure Control Solenoid 6 (PCS6) Control Circuit
Open
Yes
DNS, SOL OFF
(hydraulic default)
P2814 Pressure Control Solenoid 6 (PCS6) Control Circuit Low Yes
DNS, SOL OFF
(hydraulic default)
P2815 Pressure Control Solenoid 6 (PCS6) Control Circuit High Yes
DNS, SOL OFF
(hydraulic default)
U0073 CAN Communication Bus 1 Off No Use default values
U0074 CAN Communication Bus 2 Off No Use default values
U0100 Lost Communications with ECM A Yes Use default values
U0103
Lost Communication with Gear Shift Module (Shift
Selector) 1
Yes
Maintain range
selected, observe gear
shift direction circuit