Multiquip

SCR FORCED PURGE REQ

UnclassifiedEmissions

What This Code Means

Digital controller displays 'SCR Forced Purge Req'; Pre-Alarm Active status; Forced Purge operation will not complete automatically when the engine fault is cleared and the engine is restarted; Pre-Alarm Active indicator is triggered; Forced Purge operation fails to complete automatically after engine fault is cleared and engine is restarted

Possible Causes

  • •Automatic Purge operation is interrupted by an engine shutdown
  • •Automatic Purge operation cannot be completed
  • •Forced Purge operation is interrupted by an engine shutdown
  • •Forced Purge operation was interrupted by an engine shutdown

Suggested Actions

  1. 1A qualified and trained service technician must perform a Forced Purge operation utilizing the Isuzu Diagnostic Service Tool (IDST)
  2. 2Perform the Forced Purge operation manually by a trained service technician using the Isuzu Diagnostic Service Tool (IDST)
  3. 3A trained service technician must perform a Forced Purge operation utilizing the Isuzu Diagnostic Service Tool (IDST)
  4. 4A trained service technician must manually perform the Forced Purge operation using the Isuzu Diagnostic Service Tool (IDST)

Related Multiquip Fault Codes

SCR SYS ERRSCR SYSTEM MALFUNCTIONP2211SCR SYSTEM MALFUNCTION SDP2207SCR TROUBLE-PURGE PROHIBITEDNEED MAN REGENSERVICE DPF (SOOT ONLY)MAINTENANCE INTERVAL PRE-ALARMSOOT LEVEL HIGH!MAINTENANCE INTERVALSOOT LEVEL VERY HIGH!
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