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Engine rpm

Engine rpm



The TC/ABS control module receives information about current engine speed from the engine management system via the P-bus. The control module uses this information when calculating the current drive wheel torque.

When engine torque and the current ratio are known, the control module can calculate the drive wheel torque. Drive wheel torque is used to calculate the magnitude of brake/engine torque limitation during TCS modulation.

Diagnostics

In the event of erroneous engine speed information from the engine control module (ECM) when the engine is started, DTC C1927 will be generated, the TCS function will be disengaged and the TCS OFF lamp turned on.