Fault Condition: The Electronic Malfunction Lamp (EML) will turn on and code SID 211 will set when the reference voltage to the Fuel Pressure Sensor, Crankcase Pressure Sensor and the Oil Pressure Sensor is less than 4.5 volts or greater than 5.5 volts. If the voltage returns to 4.5 volts to 5.5 volts, the fault will become inactive.
Possible repairs:
Turn the ignition key OFF first.
1) Check if code SID 211 is set. Check if any other code is also set. If any other code code is set, go to the diagnostic routine for the specific code. If code SID 211 is NOT set, wiggle the harness and connectors to try to set the
code. Visually inspect the EMS Module connectors for frayed wires and loose or corroded connections.
2) Disconnect EMS Module connector B. Disconnect the Fuel Pressure Sensor, Crankcase Pressure Sensor and the Oil Pressure Sensor harness connectors. Check for continuity between EMS Module harness connector B, pin 17 and a good ground. If continuity exists, locate and repair the short circuit to ground.
3) Disconnect EMS Module connector B. Turn the ignition key ON. Measure the voltage between EMS Module connector B pin 17 and a good ground. If voltage is present, locate and repair the short circuit to voltage in circuit.
4) Disconnect EMS Module connector B. Disconnect the Fuel Pressure Sensor, Crankcase Pressure Sensor and the Oil Pressure Sensor harness connectors. Check for continuity between EMS Module harness connector B, pin 17 and a pin 1 of the Fuel Pressure Sensor, Crankcase Pressure Sensor and the Oil Pressure Sensor connectors. If there is NO continuity, locate and repair the open in the circuit.
5) Disconnect EMS Module connector B. Visually inspect both sides of EMS Module connector B. If a repairable short circuit or damaged pins are found, repair or replace the harness connector.
6) Connect EMS Module connector B. Connect the Fuel Pressure Sensor, Crankcase Pressure Sensor and the Oil Pressure Sensor harness connectors. Start the engine. If code SID 211 is still active, replace the EMS Module and retest the system. If code SID 211 is not active, the diagnostic procedures have corrected the problem. Check all connectors to ensure proper connections.
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