FixVault

Communication Message Chart

Message Originating Module Details
Engine Speed PCM Directly affects shift scheduling, TCC  control, line pressure and transmission diagnostics. Indirectly affects shift pressure control.
Engine torque estimate PCM Directly affects shift pressure control, TCC  control and transmission diagnostics. Indirectly affects shift scheduling and TCC  scheduling.
APP  PCM Directly affects shift scheduling, TCC  scheduling and transmission diagnostics. Indirectly affects TCC  control and shift control.
Commanded engine torque PCM Directly affects shift scheduling, TCC  scheduling and transmission diagnostics. Indirectly affects shift control.
BPP  PCM Directly affects shift scheduling and TCC  scheduling