Allison

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10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2729 Pressure Control Solenoid 1 (PCS1) Control Circuit – Low

CIRCUIT DESCRIPTION:PCPS1 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming, off-going and holding pressure to any...

10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2730 Pressure Control Solenoid 1 (PCS1) Control Circuit – High

CIRCUIT DESCRIPTION:PCPS1 is a Pressure Proportional to Current (PPC) solenoid used to control oncoming, off-going and holding pressure to any...

10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2761 TCC PCS Control Circuit Open

CIRCUIT DESCRIPTION:The TCC PCS is a Pressure Proportional to Current (PPC) solenoid used to control the TCC apply and release....

10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2763 TCC PCS Control Circuit High

CIRCUIT DESCRIPTION:The TCC PCS is a Pressure Proportional to Current (PPC) solenoid used to control the TCC apply and release....

10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2764 TCC PCS Control Circuit Low

CIRCUIT DESCRIPTION:The TCC PCS is a Pressure Proportional to Current (PPC) solenoid used to control the TCC apply and release....

10 March, 2025

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Allison 1000 & 2000 Gen 5 Fault Code:P2789 Clutch Adaptive Learning at Limit

CIRCUIT DESCRIPTION:Clutch Life Monitor is part of OEM 5th Generation Prognostics functionality. When enabled in the TCM, prognostic logic determines...

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