Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 4 Of 13

• CEM-1A61: Communication With The Transmission Control Module (TCM). Signal Missing (Aw55-50/51SN; 2001)
  • Diagnostic trouble code (DTC) information CEM-1A61
  • Signal missing
    • Checking power supply and ground terminals. Permanent fault
      • Connecting the breakout box (Automatic transmission)
      • Checking ground terminals
      • Checking for an open-circuit, contact resistance and oxidation
      • Checking control module power supply
      • Checking fuse 16
      • Checking the voltage before the fuse
    • Checking the connectors
      • Checking the connectors
    • Connecting breakout box, transmission control module (TCM)
      • Notes
      • Connecting the breakout box
    • Signal missing
      • General information
      • Checking the resistance of the control area network (CAN) cables
      • Checking a short-circuit in CAN cables
      • Checking the traffic load on the CAN cables
      • Identifying fault causes in the CAN network
      • Identifying a control module in the CAN network
      • Verification
    • Information
      • Fault-tracing information
    • Verification
      • Verification
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (2001)
  • Diagnostic trouble code (DTC) information CEM-1A62
  • Signal description. MSA 15.8
  • Location of components
    • Engine compartment
  • Signal missing
    • Checks
      • Checking the power supply and ground for the engine control module (ECM)
      • Checking communication with the engine control module (ECM)
      • Checking the engine control module (ECM)
    • Signal missing
      • General information
      • Checking the resistance of the control area network (CAN) cables
      • Checking a short-circuit in CAN cables
      • Checking the traffic load on the CAN cables
      • Identifying fault causes in the CAN network
      • Identifying a control module in the CAN network
      • Verification
    • Information
      • Fault-tracing information
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (2002-2004)
  • Diagnostic trouble code (DTC) information CEM-1A62
  • Signal missing
    • Checks
      • Checking the engine type
      • Checking the power supply and ground for the engine control module (ECM)
      • Checking communication with the engine control module (ECM)
      • Checking the engine control module (ECM)
    • Signal missing
      • General information
      • Checking the resistance of the control area network (CAN) cables
      • Checking a short-circuit in CAN cables
      • Checking the traffic load on the CAN cables
      • Identifying fault causes in the CAN network
      • Identifying a control module in the CAN network
      • Verification
      • Checking the power supply and ground for the engine control module (ECM)
      • Checking communication with the engine control module (ECM)
      • Checking the engine control module (ECM)
    • Information
      • Fault-tracing information
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A62
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (B5204T5; B5254T4; 2005-2007)
  • Signal missing
    • Checks
      • Checking the power supply and ground for the engine control module (ECM)
      • Checking communication with the engine control module (ECM)
      • Checking the engine control module (ECM)
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the traffic load on the CAN cables
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (B5244S; B5244S6; 2005-2006)
  • Signal missing
    • Checks
      • Checking the power supply and ground for the engine control module (ECM)
      • Checking communication with the engine control module (ECM)
      • Checking the engine control module (ECM)
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the traffic load on the CAN cables
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
• CEM-1A62: Communication With The Engine Control Module (ECM). Signal Missing (B5244T5; B5254T2; 2005-2009)
  • Signal missing
• CEM-1A63: Communication With The Accessory Electronic Module (AEM). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A63
  • Signal missing
    • Checks
      • Checking the power supply and ground for the accessory electronic module (AEM)
      • Checking communication with the accessory electronic module (AEM)
      • Checking the accessory electronic module (AEM)
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the amount of traffic on the LS-CAN
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
• CEM-1A63: Communication With The Accessory Electronic Module. Signal Missing (2002-2004)
  • Diagnostic trouble code (DTC) information CEM-1A63
  • Signal missing
    • Checks
      • Checking the power supply and ground for the accessory electronic module (AEM)
      • Checking communication with the accessory electronic module (AEM)
      • Checking the accessory electronic module (AEM)
    • Signal missing
      • General information
      • Checking the resistance of the control area network (CAN) cables
      • Checking a short-circuit in CAN cables
      • Checking the traffic load on the CAN cables
      • Identifying fault causes in the CAN network
      • Identifying a control module in the CAN network
      • Verification
    • Information
      • Fault-tracing information
• CEM-1A64: Communication With The Differential Electronic Module (DEM). Signal Missing (2002-2004)
  • Diagnostic trouble code (DTC) information CEM-1A64
  • Signal missing
    • Checks
      • Checking the power supply and ground for the differential electronic module (DEM)
      • Checking communication with the differential electronic module (DEM)
      • Checking the differential electronic module (DEM)
    • Signal missing
      • General information
      • Checking the resistance of the control area network (CAN) cables
      • Checking a short-circuit in CAN cables
      • Checking the traffic load on the CAN cables
      • Identifying fault causes in the CAN network
      • Identifying a control module in the CAN network
      • Verification
    • Information
      • Fault-tracing information
• CEM-1A64: Communication With The Differential Electronic Module (DEM). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A64
  • Signal missing
    • Checks
      • Checking the power supply and ground for the differential electronic module (DEM)
      • Checking communication with the differential electronic module (DEM)
      • Checking the differential electronic module (DEM)
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the traffic load on the CAN cables
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
• CEM-1A65: Communication With The Suspension Module (Sum). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A65
  • Signal missing
    • Checks
      • Checking the connectors
      • Checking the components and wiring
      • Checking the bus cable
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the traffic load on the CAN cables
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
    • Verification
      • Verification
• CEM-1A65: Communication With The Suspension Module (Sum). Signal Missing (2004)
  • Diagnostic trouble code (DTC) information CEM-1A65
  • Signal missing
    • Checks
      • Checking the connectors
      • Checking components and wiring
      • Checking the bus cable
    • Open-circuit in the Control area network (CAN) bus. High speed network. Permanent fault
      • Checking the high speed network
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• CEM-1A67: Communication With HCM Control Module Signal Missing (2007-2009)
  • Signal missing
    • Checks
      • Checking the power supply and ground
      • Checking communication with the headlight control module (HCM)
      • Checking headlight control module (HCM)
    • Signal missing
      • General information
      • Checking resistance in CAN-net
      • Checking the traffic load on the CAN cables
      • Identifying a control module in the CAN network
      • Verification
      • Checking short-circuiting to ground/voltage in CAN-net
      • Checking voltage-drop in cable for CAN-H and CAN-L, respectively
    • Information
      • Fault-tracing information
  • Diagnostic trouble code (DTC) informationCEM-1A67
• CEM-1C01: L Signal. Signal Too High. Intermittent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too high. Intermittent fault
    • Intermittent fault
      • Intermittent fault
    • Information
      • Fault-tracing information
• CEM-1C01: L Signal. Signal Too High. Permanent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too high or signal missing. Permanent fault
    • Checks
      • Checking the signal cable
      • Replacing the governor
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• CEM-1C02: L Signal. Signal Too Low. Intermittent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too low. Intermittent fault
    • Intermittent fault
      • Intermittent fault
    • Information
      • Fault-tracing information
• CEM-1C02: L Signal. Signal Too Low. Permanent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too low. Permanent fault
    • Checks
      • Checking the signal cable
      • Replacing the governor
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• CEM-1C04: 30 Power Supply. Signal Too High. Intermittent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too high. Intermittent fault
    • Checks
      • Checking the generator (GEN)
    • Information
      • Fault-tracing information
• CEM-1C04: 30 Power Supply. Signal Too High. Permanent Fault (2001-2004)
  • Diagnostic trouble code (DTC) information
  • Signal too high. Permanent fault
    • Checks
      • Checking the generator (GEN) and battery
      • Replacing the charge regulator
      • Replacing the battery
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• CEM-1C05: 30-Power Supply. Signal Too Low (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1C05
  • Signal too low
    • Checking the cable between the battery and generator (GEN)
    • Checking the power supply
    • Checking the ground terminal
    • Checking the battery
    • Replacing battery
    • Checking the generator (GEN)
    • Generator (GEN), replacing (D5244Tx, - 2004)
      • Removal
        • Notes
        • Without A/C
        • With A/C
      • Installation
    • Generator (GEN), replacing (D5244Tx, 2005 -)
      • Notes
      • Preparatory work
        • Removing components
      • Removal
        • Disconnecting the pressure hose
        • Removing the generator (GEN)
      • Installation
        • Notes
        • Installing generator (GEN)
      • Finishing
        • Installing the pressure hose
        • Installing components
        • Bleeding the power steering system
        • Function test
    • Power steering pump, replacing
      • Notes
      • Preparation
      • Draining oil
      • Removing the delivery lines
      • Removing the power steering pump
      • Installing the power steering pump
      • Installing delivery lines
      • Finishing
    • Auxiliaries belt / belt tensioner, replacing
      • Notes
      • Removing the auxiliaries belt
      • Replacing the belt tensioner
      • Installing the auxiliaries belt
      • Checking work
    • Verification
      • Verification
    • Information
      • Fault-tracing information