13 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0872 Transmission Pressure Switch 3 (PS3) Circuit – Low CIRCUIT DESCRIPTION:The Pressure Switch Manifold (PSM) is a multiple-switch assembly made up of three Normally Open (N/O) and one Normally...
13 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0873 Transmission Pressure Switch 3 (PS3) Circuit – High CIRCUIT DESCRIPTION:The Pressure Switch Manifold (PSM) is a multiple-switch assembly made up of three Normally Open (N/O) and one Normally...
13 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0877 Transmission Fluid Pressure Switch 4 (PS4) Circuit – Low CIRCUIT DESCRIPTION:The Pressure Switch Manifold (PSM) is a multiple-switch assembly made up of three Normally Open (N/O) and one Normally...
13 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0878 Transmission Fluid Pressure Switch 4 (PS4) Circuit – High CIRCUIT DESCRIPTION:The Pressure Switch Manifold (PSM) is a multiple-switch assembly made up of three Normally Open (N/O) and one Normally...
10 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0880 TCM Power Input Signal CIRCUIT DESCRIPTION:The TCM requires a switched ignition voltage input and a direct battery voltage input. Battery direct voltage is supplied...
10 March, 2025 Allison 1000 & 2000 Gen 5 Fault Code:P0881 TCM Power Input Signal – Performance CIRCUIT DESCRIPTION:The TCM requires input battery voltage which originates direct from the vehicle battery and runs through a 10 amp...