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Home >> Mercedes Benz >> 2005 >> SL500 >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Fuel & Ignition -- Self-Diagnostic System -- 230 Chassis >> Self-Diagnostic System >> Gasoline injection and ignition system (ME-SFI) diagnosis - diagnostic trouble code memory - AD07.61-P-4000 >> ME-SFI fuel injection and ignition system (ME), DTC memory - AD07.61-P-4000M >> Activated charcoal canister shut-off valve ME-SFI - fault code description - AD07.61-P-4000-20MA

Activated charcoal canister shut-off valve ME-SFI - fault code description - AD07.61-P-4000-20MA

USA ONLY

    Actuation of the activated charcoal filter shutoff valve (Y58/4)
1A Fault code ME2.7.1  P2025 (P0446)
  (Fault code according to OBD)  
1B Fault code ME2.7.2  P2025-(1) Short-circuit to positive (P0447)
  (Fault code according to OBD) P2025-(2) Short-circuit to ground (P0448)
P2025-(4) Cable open-circuit (P0446)
2 Fault storage After expiry of test duration and fault
  Actuation CHECK ENGINE indicator lamp (MIL) USA ONLY Following two successive driving cycles with faults
3 Checking frequency Continuous
4 Checked signal or status Voltage and current for activated charcoal canister shutoff valve
5 Fault setting conditions   
  Short circuit to ground Voltage lower than 4 volts
  Short circuit to positive Current higher than 4.2 A
  Open circuit in wiring No voltage on activated charcoal filter shutoff valve, about 4 to 8 V on under no load output of ME-SFI [ME] control unit.
6 IMPORTANT Actuation of the activated charcoal canister shutoff valve is checked concerning a cable open-circuit and short-circuit (to ground or battery voltage). A short circuit to ground and a cable breakage will be recognized when the output stages are locked, while a short circuit to the battery voltage is recognized when the output stages are conducting.
The output stage is immediately no longer activated when a fault arises.