Accessory Electronic Module (AEM) And Central Electronic Module (CEM) - Diagnostic Trouble Codes - 1 Of 2

• CEM-5B02: RH Heating Element. Signal Faulty. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Faulty Signal. Intermittent Fault
    • Checking For Contact Resistance And Oxidation
    • Replacing The Component
    • Information
      • Fault-Tracing Information
• CEM-5B02: RH Heating Element. Signal Faulty. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Faulty Signal. Permanent Fault
    • Checking For Contact Resistance And Oxidation
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B05: Left Seat Heater. Signal Too Low. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Intermittent Fault
    • Checking The Cable
    • Information
      • Fault-Tracing Information
• CEM-5B05: Left Seat Heater. Signal Too Low. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Permanent Fault
    • Checking The Component
    • Checking The Cable
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B06: Right Seat Heater. Signal Too Low. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Intermittent Fault
    • Intermittent Fault
    • Information
      • Fault-Tracing Information
• CEM-5B06: Right Seat Heater. Signal Too Low. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Permanent Fault
    • Checking The Component
    • Checking The Cable
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B07: Left Seat Heater. Signal Too High. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High. Intermittent Fault
    • Intermittent Fault
    • Information
      • Fault-Tracing Information
• CEM-5B07: Left Seat Heater. Signal Too High. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High. Permanent Fault
    • Checking The Signal Wire
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B08: Right Seat Heater. Signal Too High. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Too High. Intermittent Fault
    • Checking The Cable
    • Information
      • Fault-Tracing Information
• CEM-5B08: Right Seat Heater. Signal Too High. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Too High. Permanent Fault
    • Checking The Component
    • Checking The Cable
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B09: Communication With The Seat Heater Module. Signal Missing. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Missing. Intermittent Fault
    • Replacing The Component
    • Information
      • Fault-Tracing Information
• CEM-5B09: Communication With The Seat Heater Module. Signal Missing. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Missing. Permanent Fault
    • Checking The Component
    • Checking The Cable
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5B10: Communication With The Seat Heater Module. Signal Missing. Intermittent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Missing. Intermittent Fault
    • Replacing The Component
    • Information
      • Fault-Tracing Information
• CEM-5B10: Communication With The Seat Heater Module. Signal Missing. Permanent Fault (2003-2004)
  • Diagnostic Trouble Code (DTC) Information
  • Signal Missing. Permanent Fault
    • Checking The Component
    • Checking The Cable
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F11: Relay, Auxiliary Heater. Signal Too High. Intermittent Fault (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High. Intermittent Fault
    • Checking The Relay
    • Information
      • Fault-Tracing Information
• CEM-5F11: Relay, Auxiliary Heater. Signal Too High. Permanent Fault (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High. Permanent Fault
    • Checking The Relay
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F13: Relay, Auxiliary Heater. Signal Too Low. Intermittent Fault (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Intermittent Fault
    • Checking The Relay
    • Information
      • Fault-Tracing Information
• CEM-5F13: Relay, Auxiliary Heater. Signal Too Low. Permanent Fault (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low. Permanent Fault
    • Checking The Relay
    • Replacing The Component
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F31: Coolant Temperature Sensor Open Circuit Or Short Circuit To Supply (2003-2004)
  • Diagnostic Trouble Code Information
  • Open Circuit Or Short-Circuit To Voltage
    • Checking The Function Of The Engine Coolant Temperature Sensor
    • Checking The Connectors
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F31: Coolant Temperature Sensor Open Circuit Or Short Circuit To Supply (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F31
  • Open Circuit Or Short-Circuit To Voltage
    • Checking The Function Of The Engine Coolant Temperature Sensor
    • Checking The Connectors
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F32: Coolant Temperature Sensor Short Circuit To Ground (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F32
  • Short-Circuit To Ground
    • Checking The Function Of The Engine Coolant Temperature Sensor
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F32: Coolant Temperature Sensor Short Circuit To Ground (2003-2004)
  • Diagnostic Trouble Code Information
  • Short-Circuit To Ground
    • Checking The Function Of The Engine Coolant Temperature Sensor
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F36: Flame Sensor Short Circuit To Ground (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F36
  • Short-Circuit To Ground
    • Checking The Function Of The Flame Sensor
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F36: Flame Sensor Short Circuit To Ground (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Short-Circuit To Ground
    • Checking The Function Of The Flame Sensor
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F37: Factory Set Diagnostic Trouble Code (DTC). Faulty Code (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F37
  • Faulty Code
    • Fault-Tracing Information
• CEM-5F37: Production Diagnostic Trouble Code. Faulty Code (2003-2004)
  • Diagnostic Trouble Code Information
  • Faulty Code
    • Trouble-Shooting Information
• CEM-5F39: Flame Sensor Flame Interruption (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F39
  • Flame Interruption
    • Checking The Function Of The Flame Sensor
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F39: Flame Sensor Flame Interruption (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Flame Interruption
    • Checking The Function Of The Heater
    • Intermittent Fault
    • Information
      • Fault-Tracing Information
    • Too-Many: Unsuccessful Attempts
      • Checking Quantity Of Fuel And Voltage
      • Checking The Fuel Lines
      • Checking Components
      • Checking The Nozzle Pipe
      • Checking The Intake Air Flow
      • Checking The Flame Sensor
      • Checking Components And Wiring
    • Verification
      • Verification
      • Verification, Continued
• CEM-5F3A: Water Pump. Signal Too High (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3A: Water Pump. Signal Too High (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3A
  • Signal Too High
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3B: Water Pump. Signal Too Low (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low
    • Checking The Function Of The Water Pump
    • Checking The Connectors
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3B: Water Pump. Signal Too Low (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3B
  • Signal Too Low
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3C: Combustion Fan. Signal Too High (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3C
  • Signal Too High
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3C: Heater Fan. Signal Too High (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High
    • Checking The Function Of The Combustion Fan
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3D: Combustion Fan. Signal Too Low (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3D
  • Signal Too Low
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3D: Heater Fan. Signal Too Low (2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low
    • Checking The Function Of The Combustion Fan
    • Checking The Connectors
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3E: Combustion Fan. Faulty Signal (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3E
  • Faulty Signal
    • Checking The Function Of The Water Pump
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3E: Heater Fan. Signal Faulty (2003-2004)
  • Diagnostic Trouble Code Information
  • Faulty Signal
    • Checking The Function Of The Combustion Fan
    • Checking The Connectors
    • Replacing The Component
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3F: Fuel Pump (FP). Signal Too High (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F3F
  • Signal Too High
    • Checking The Function Of The Fuel Pump (FP)
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F3F: Fuel Pump. Signal Too High (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too High
    • Checking The Function Of The Fuel Pump (FP)
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F40: Fuel Pump (FP). Signal Too Low (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F40
  • Signal Too Low
    • Checking The Function Of The Fuel Pump (FP)
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F40: Fuel Pump. Signal Too Low (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low
    • Checking The Function Of The Fuel Pump (FP)
    • Checking The Connectors
    • Checking The Overheat Protection Thermostat
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F41: Overheat Protection Thermostat. Signal Too Low (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F41
  • Signal Too Low
    • Checking The Water Flow
    • Checking The Engine Coolant Temperature Sensor
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F41: Overheat Thermostat. Signal Too Low (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Signal Too Low
    • Checking The Water Flow
    • Checking The Engine Coolant Temperature Sensor
    • Checking Components And Wiring
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F42: Power Supply. Faulty (2003-2004)
  • Diagnostic Trouble Code Information
  • Faulty
    • Checking Ground Points
      • Notes
      • Connecting The Test Box
      • Checking Ground Point
      • Checking For Open Circuits, Contact Resistance And Oxidation
      • Checking The Power Supply
      • Checking The Supply Circuit
      • Intermittent Fault
    • Information
      • Connecting The Test Box
      • Fault-Tracing Information
    • Verification
      • Verification
• CEM-5F42: Power Supply. Faulty (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F42
  • Faulty
    • Checking The Power Supply
    • Checking The Supply Circuit
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
    • Faulty
      • Checking The Power Supply
      • Checking The Supply Circuit
      • Verification
      • Fault-Tracing Information
      • Intermittent Fault
• CEM-5F43: Power Supply. Missing (2005-2014)
  • Diagnostic Trouble Code (DTC) Information CEM-5F43
  • Missing
    • Checking The Power Supply
    • Checking The Connector
    • Checking The Supply Circuit
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F43: Power Supply. Missing (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Missing
    • Checking The Power Supply
    • Checking The Connector
    • Checking The Supply Circuit
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information
• CEM-5F46: Glow Plug. Signal Faulty (B5254T2; B6294T; 2003-2004)
  • Diagnostic Trouble Code Information
  • Faulty Signal
    • Checking The Function Of The Glow Plug
    • Checking The Connectors
    • Checking Components And Wiring
    • Intermittent Fault
    • Verification
      • Verification
    • Information
      • Fault-Tracing Information