PREVOST H3-45 VIP Owner's Manual page 233

DTC
P0989 Retarder Pressure Sensor Circuit Low
P0990 Retarder Pressure Sensor Circuit High
P1739 Incorrect Low Gear Ratio
P1790 Gear Shift Module 1 Calibrated Invalid
P1791 Gear Shift Module 2 Calibrated Invalid
P1891 Throttle Position Sensor PWM Signal Low
P1892 Throttle Position Sensor PWM Signal High
P2184 Engine Coolant Temperature Sensor 2 Circuit Low Input
P2185 Engine Coolant Temperature Sensor 2 Circuit High Input
P2637 Torque Management Feedback Signal (A)
P2641 Torque Management Feedback Signal (B)
P2669 Actuator Supply Circuit Voltage 2 Open (HSD2)
P2670 Actuator Supply Voltage 2 (HSD2) Low
P2671 Actuator Supply Voltage 2 (HSD2) High
P2684 Actuator Supply Circuit Voltage 3 Open (HSD3)
P2685 Actuator Supply Voltage 3 (HSD3) Low
P2686 Actuator Supply Voltage 3 (HSD3) High
P2714 Pressure Control Solenoid 4 (PCS4) Stuck Off
P2715 Pressure Control Solenoid 4 (PCS4) Stuck On
P2718 Pressure Control Solenoid 4 (PCS4) Control Circuit Open
P2720 Pressure Control Solenoid 4 (PCS4) Control Circuit Low
Description
PA-1638 Owner's Manual X3-45 VIP
Allison Transmission Other Features C-13
CHECK
Light
No None
No None
Command 2
Yes
through 6, N, R
Shift selector language or units
Yes
incorrect
Shift selector language or units
Yes
incorrect
No Use default throttle values
No Use default throttle values
Use default engine coolant
No
values
Use default engine coolant
No
values
Yes Inhibit SEM
Yes Inhibit LRTP
SOL
Yes operation,
modulation, ONA
DNS,
Yes
default)
DNS,
Yes
default)
SOL
Yes operation,
modulation, ONA
DNS,
Yes
default)
DNS,
Yes
default)
Yes DNS, RPR
DNS,
Yes
default)
DNS,
Yes
default)
DNS,
Yes
default)
Inhibited Operation
Description
nd
and allow shifts 2
OFF, Inhibit TCC
Inhibit Main
SOL OFF (hydraulic
SOL OFF (hydraulic
OFF, Inhibit TCC
Inhibit Main
SOL OFF (hydraulic
SOL OFF (hydraulic
SOL OFF (hydraulic
SOL OFF (hydraulic
SOL OFF (hydraulic