APPENDIX C – Allison Transmission’s Other Features 11
DTC
Description
CHECK
Light
Inhibited Operation
Description
P0966 Pressure Control Solenoid 2 (PCS2) Control Circuit Low
Yes
DNS, SOL OFF (hydraulic default)
P0967 Pressure Control Solenoid 2 (PCS2) Control Circuit High
Yes
DNS, SOL OFF (hydraulic default)
P0968 Pressure Control Solenoid 3 (PCS3) Control Circuit Open
Yes
DNS, SOL OFF (hydraulic default)
P0970 Pressure Control Solenoid 3 (PCS3) Control Circuit Low
Yes
DNS, SOL OFF (hydraulic default)
P0971 Pressure Control Solenoid 3 (PCS3) Control Circuit High
Yes
DNS, SOL OFF (hydraulic default)
P0973 Shift Solenoid 1 (SS1) Control Circuit Low
Yes
DNS, SOL OFF (hydraulic default)
P0974 Shift Solenoid 1 (SS1) Control Circuit High
Yes
DNS, SOL OFF (hydraulic default)
P0976 Shift Solenoid 2 (SS2) Control Circuit Low
Yes
7-speed: Allow 2 through 6, N, R
Inhibit TCC operation
P0977 Shift Solenoid 2 (SS2) Control Circuit High
Yes
7-speed: Allow 2 through 6, N, R
P097A Shift Solenoid 1 (SS1) Control Circuit Open
Yes
Lock in range
P097B Shift Solenoid 2 (SS2) Control Circuit Open
Yes
7-speed: Allow 2 through 6, N, R
P0989 Retarder Pressure Sensor Circuit Low
No
None
P0990 Retarder Pressure Sensor Circuit High
No
None
P1739 Incorrect Low Gear Ratio
Yes
Command 2
nd
and allow shifts 2
through 6, N, R
P1790 Gear Shift Module 1 Calibrated Invalid
Yes
Shift selector language or units
incorrect
P1791 Gear Shift Module 2 Calibrated Invalid
Yes
Shift selector language or units
incorrect
P1891 Throttle Position Sensor PWM Signal Low
No
Use default throttle values
P1892 Throttle Position Sensor PWM Signal High
No
Use default throttle values
P2184 Engine Coolant Temperature Sensor 2 Circuit Low Input
No
Use default engine coolant values
P2185 Engine Coolant Temperature Sensor 2 Circuit High Input
No
Use default engine coolant values
P2637 Torque Management Feedback Signal (A)
Yes
Inhibit SEM
P2641 Torque Management Feedback Signal (B)
Yes
Inhibit LRTP
P2669 Actuator Supply Circuit Voltage 2 Open (HSD2)
Yes
SOL OFF, Inhibit TCC operation,
Inhibit Main modulation, ONA
P2670 Actuator Supply Voltage 2 (HSD2) Low
Yes
DNS, SOL OFF (hydraulic default)
P2671 Actuator Supply Voltage 2 (HSD2) High
Yes
DNS, SOL OFF (hydraulic default)
P2684 Actuator Supply Circuit Voltage 3 Open (HSD3)
Yes
SOL OFF, Inhibit TCC operation,
Inhibit Main modulation, ONA
P2685 Actuator Supply Voltage 3 (HSD3) Low
Yes
DNS, SOL OFF (hydraulic default)
P2686 Actuator Supply Voltage 3 (HSD3) High
Yes
DNS, SOL OFF (hydraulic default)
P2714 Pressure Control Solenoid 4 (PCS4) Stuck Off
Yes
DNS, RPR
P2715 Pressure Control Solenoid 4 (PCS4) Stuck On
Yes
DNS, SOL OFF (hydraulic default)
P2718 Pressure Control Solenoid 4 (PCS4) Control Circuit Open
Yes
DNS, SOL OFF (hydraulic default)
P2720 Pressure Control Solenoid 4 (PCS4) Control Circuit Low
Yes
DNS, SOL OFF (hydraulic default)
P2721 Pressure Control Solenoid 4 (PCS4) Control Circuit High
Yes
DNS, SOL OFF (hydraulic default)
P2723 Pressure Control Solenoid 1 (PCS1) Stuck Off
Yes
DNS, RPR
P2724 Pressure Control Solenoid 1 (PCS1) Stuck On
Yes
DNS, RPR
P2727 Pressure Control Solenoid 1 (PCS1) Control Circuit Open
Yes
DNS, SOL OFF (hydraulic default)
P2729 Pressure Control Solenoid 1 (PCS1) Control Circuit Low
Yes
DNS, SOL OFF (hydraulic default)
P2730 Pressure Control Solenoid 1 (PCS1) Control Circuit High
Yes
DNS, SOL OFF (hydraulic default)
P2736 Pressure Control Solenoid 5 (PCS5) Control Circuit Open
Yes
Inhibit retarder operation
Summary of Contents for H 2018 Series
Page 1: ...COACH MANUFACTURER OPERATOR S MANUAL H SERIES COACHES PA1628 January 2018 ...
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Page 217: ...TECHNICAL INFORMATION 9 5 PA1628 H3 41 H3 45 Operator s Manual H3 45 OVERALL DIMENSIONS 18525 ...
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