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Home >> Mercedes Benz >> 2000 >> SL600 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Electronic Accelerator Tests >> Throttle Valve Actuator >> Right Cylinder Bank ME-SFI Control Module (N3/12)

Right Cylinder Bank ME-SFI Control Module (N3/12)

NOTE: Right cylinder bank actual value potentiometer is located in right cylinder bank throttle valve actuator (M16/4). Potentiometer produces 2 signals, signal 1 and signal 2. Right cylinder bank throttle valve actuator is located on left side of engine (because of intake manifold crossover). For ME-SFI control module location and identification, see ME-SFI CONTROL MODULE CONNECTOR IDENTIFICATION  .
  1. Right Cylinder Bank Throttle Valve Actuator Motor (M16/4), Actuation -  Connect DVOM between right cylinder bank ME-SFI control module connector 2 terminals No. 74 and 75 (socket box terminals No. 74 and 75). Turn ignition on. Voltage should be 1-2.3 volts. Start engine and idle. Allow engine to reach an operating temperature of more than 158°F (70°C). Voltage should be 1-2.5 volts and fluctuating. If voltage is as specified, go to next step. If voltage is not as specified, possible causes are wiring harness failure, right cylinder bank throttle valve actuator motor (M16/4) failure or defective right cylinder bank ME-SFI control module (N3/12). Repair as necessary.
  2. Right Cylinder Bank Throttle Valve Actuator Motor (M16/4), Resistance -  Turn ignition off. Connect DVOM between right cylinder bank ME-SFI control module connector 2 terminals No. 74 and 75 (socket box terminals No. 74 and 75). Resistance should be less than 10 ohms. If resistance is okay, test is complete. If resistance is not okay, possible causes are wiring harness failure, right cylinder bank throttle valve actuator motor (M16/4) failure or defective right cylinder bank ME-SFI control module (N3/12). Repair as necessary.