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Home >> Land Rover >> 2003 >> Freelander S >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostics - Siemens Ms43 Engine Management System >> Introduction >> 2.1 Inputs and Outputs
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2.1 Inputs and Outputs

SIGNALS SPECIFICATION

Input Signals Monitored by OBDII?
  • Transmission Control Module (TCM) - Torque Down Request (via CAN)
  • O2 Sensors
  • MAF Sensor
  • Camshaft Position Sensor
  • ECT Sensor
  • TP Sensor
  • Crankshaft Position Sensor
  • Intake Air Temperature (IAT) Sensor
  • Diagnostic Module - Tank Leakage (DMTL) (Pump Motor Current)
  • Accelerator Pedal Position (APP) Sensor
  • Vehicle Speed Signal
  • Radiator Outlet Temperature
  • Knock Sensors
  • Generator Load Sensing
  • Brake Light Switches
  • Cruise Control Switches
  • Immobilizer
  • Real Time Clock (Instrument Pack via CAN)
  • Fuel Tank Level (Instrument Pack via CAN)
  • Instrument Pack CAN Bus
  • Ambient Air Temperature (Instrument Pack via CAN)
 Yes - bus check
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
-
No
No
No
Yes (no Malfunction Indicator Lamp (MIL))
Yes (no MIL)
Yes (no MIL)
If the Instrument Pack reports a fault, all the relevant diagnostics are enabled
SIGNALS SPECIFICATION

Output Signals Monitored by OBDII?
  • Injection Valves
  • Evaporative Emission (EVAP) Canister Purge Valve
  • Throttle Actuator
  • MIL (Instrument Pack via CAN)
  • Ignition Coils
  • O2 Sensor Heaters
  • Fuel Pump Relay
  • Diagnostic Module - Tank Leakage (Pump Motor and Solenoid Valve)
  • Diagnostic Module - Tank Leakage (Heater)
  • ECM Main Relay
  • Intake Manifold Switching Valves
  • Engine Cooling Fan
  • Air Conditioning Compressor Relay
  • (TCM) - Engine Speed, Torque, Temperature and Throttle Angle (via CAN)
 Yes
Yes
Yes
-
Via Misfire Monitoring
Yes
-
Yes
Yes (no MIL)
No
Yes (no MIL)
No
No
Yes - signals checked separately
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