9000 CDE V6-2962cc 3.0L DOHC (B308) (1995)
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The Traction Control System (TCS) control module receives information about the current engine speed via pin 6 from pin 43 on the
MOTRONIC control module.
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Information about the engine speed is essential so that:
the control module can use this and information about the positions of the main and TCS throttles to calculate the engine torque.
the control module can use this and the speed signals from the wheels to calculate the gear positions.
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The signal is a square wave of approx. 37 Hz while idling and approx. 125 Hz at 2500 rpm.
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If the signal is wrong or there is an interruption/short in the circuit, diagnostic trouble codes are registered by the system. The TCS OFF lamp
lights and the system is disengaged.