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LAND ROVER V8 19 DESCRIPTION AND OPERATION ECM pin details for Connector C505 continued: Pin No. Description Input/Output Voltage 21 HO 2 S sensor Upstream - Heater supply Output Heater resistance = 5.7 ohms 22 Malfunction Indicator Lamp (MIL) Output drive Switch to ground 23 Engine speed output Output 12V square wave (4 pulses per revolution) 24 Fuel pump relay Output drive Switch to ground 25 Not used - - 26 Not used - - 27 Throttle position Analogue input 0 - 5V (1.4V at idle) 28 HO 2 S sensor Upstream - Heater supply Output Heater resistance = 5.7 ohms 29 Engine torque Output 12V PWM 30 Injector - Cylinder 4 Output 0 - 12V 31 Not used - - 32 Injector - Cylinder 7 Output 0 - 12V 33 Injector - Cylinder 5 Output 0 - 12V 34 IACV-C Stepper motor Output stepped by sequentially changing voltage polarity 35 IACV-A Stepper motor Output stepped by sequentially changing voltage polarity 36 Injector - Cylinder 2 Output 0 - 12V |