Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 3 Of 13

• CEM-1A5A: Communication With The Rear Electronic Module (Rem). Signal Missing (2001-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5A
  • Signal missing
    • Checks
      • Checking the function of the rear electronic module (REM)
      • Checking the power supply and ground for the rear electronic module (REM)
      • Checking communication with the rear electronic module (REM)
    • 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-1A5A: Communication With The Rear Electronic Module (Rem). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A5A
  • Signal missing
    • Checks
      • Checking the power supply and ground for the rear electronic module (REM)
      • Checking communication with the rear electronic module (REM)
      • Checking the function of the rear electronic module (REM)
    • 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-1A5B: Communication With The Steering Wheel Module (SWM). Signal Missing (2001-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5B
  • Signal missing
    • Checks
      • Checking the function of the steering wheel module (SWM)
      • Checking the power supply and ground for the steering wheel module (SWM)
      • Checking communication with the steering wheel module (SWM)
    • 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-1A5C: Communication With The Upper Electronic Module (UEM). Signal Missing (2001-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5C
  • Signal missing
    • Checks
      • Checking the function of the upper electronic module (UEM)
      • Checking the power supply and ground for the upper electronic module (UEM)
      • Checking communication with the upper electronic module (UEM)
    • 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-1A5C: Communication With The Upper Electronic Module (UEM). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A5C
  • Signal missing
    • Checks
      • Checking the function of the upper electronic module (UEM)
      • Checking the power supply and ground for the upper electronic module (UEM)
      • Checking communication with the upper electronic module (UEM)
    • 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-1A5D: Communication With The Electronic Throttle Module (ETM). Signal Missing (2001)
  • Diagnostic trouble code (DTC) information CEM-1A5D
  • Signal missing
    • Checks
      • Checking the function of the electronic throttle module (ETM)
      • Checking the power supply and ground terminal for the electronic throttle module (ETM)
      • Checking communication with the electronic throttle module (ETM)
    • 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-1A5D: Communication With The Electronic Throttle Module (ETM). Signal Missing (2002-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5D
  • Signal missing
    • Checks
      • Checking the function of the electronic throttle module (ETM)
      • Checking the power supply and ground terminal for the electronic throttle module (ETM)
      • Checking communication with the electronic throttle module (ETM)
    • 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
    • Throttle body (electronic throttle module (ETM), replacing
      • Removal
      • Installation
• CEM-1A5E: Communication With The Steering Wheel Angle Sensor Module (SAS). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A5E
  • Signal missing
    • Checks
      • Checking the power supply and ground for the steering wheel module (SWM)
      • Checking communication with the steering wheel angle sensor module (SAS)
      • Checking the steering wheel angle sensor module (SAS)
    • 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
      • Checking the power supply and ground for the steering wheel module (SWM)
      • Checking communication with the steering wheel angle sensor module (SAS)
      • Signal missing
      • Checking the steering wheel angle sensor module (SAS)
      • Fault-tracing information
    • Information
      • Fault-tracing information
• CEM-1A5E: Communication With The Steering Wheel Angle Sensor Module (SAS). Signal Missing (2001-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5E
  • Signal missing
    • Checks
      • Checking the power supply and ground for the steering wheel angle sensor module (SAS)
      • Checking communication with the steering wheel angle sensor module (SAS)
      • Checking the steering wheel angle sensor module (SAS)
    • 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-1A5F: Communication With The Abs Control Module. Signal Missing. Intermittent Fault (2001)
  • Diagnostic trouble code (DTC) information
  • Signal missing. Intermittent fault
    • Checking control module power supply and ground terminals. Intermittent fault
      • Checking power supply and ground terminals
    • Checking the connectors
      • Checking the connectors
    • Open-circuit in Control area network bus. High speed network. Intermittent fault
      • Checking the high speed network
    • Connecting breakout box, Transmission control module (TCM)
      • Notes
      • Connecting the breakout box to the automatic transmission control module (TCM)
    • Information
      • Fault-tracing information
• CEM-1A5F: Communication With The Abs Control Module. Signal Missing. Permanent Fault (2001)
  • Diagnostic trouble code (DTC) information
  • Signal missing. Permanent fault
    • Checking the power supply and ground terminals for the control module. Permanent fault
      • Checking the power supply and ground terminals
    • Checking the connectors
      • Checking connectors
      • Checking the bus cable
      • Replacing ABS control module
    • Open-circuit in Control area network bus. High speed network. Permanent fault
      • Checking the high speed network
    • Verification
      • Verification
    • Information
      • Fault-tracing information
• CEM-1A5F: Communication With The Brake Control Module (BCM). Signal Missing (2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A5F
  • Signal missing
    • Checks
      • Checking the power supply and ground for the brake control module (BCM)
      • Checking communication with the brake control module (BCM)
      • Checking the brake control module (BCM)
    • 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
      • Checking the power supply and ground for the brake control module (BCM)
      • Checking communication with the brake control module (BCM)
      • Signal missing
      • Checking the brake control module (BCM)
      • Fault-tracing information
    • Information
      • Fault-tracing information
    • Checking the ground terminals, brake control module
      • Checking the ground terminals
• CEM-1A5F: Communication With The Brake Control Module. Signal Missing (2002-2004)
  • Diagnostic trouble code (DTC) information CEM-1A5F
  • Signal missing
    • Checks
      • Checking the power supply and ground for the brake control module (BCM)
      • Checking communication with the brake control module (BCM)
      • Checking the brake control module (BCM)
    • 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-1A61: Communication With The Transmission Control Module (TCM). Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2002-2004)
  • 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-1A61: Communication With The Transmission Control Module (TCM). Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2005-2009)
  • Diagnostic trouble code (DTC) information CEM-1A61
  • Signal missing
    • Checks
      • Checking the power supply and ground for the transmission control module (TCM)
      • Checking the communication with the transmission control module (TCM)
      • Checking the transmission control module (TCM)
    • 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
      • Checking the power supply and ground for the transmission control module (TCM)
      • Checking the communication with the transmission control module (TCM)
      • Checking the transmission control module (TCM)
      • Fault-tracing information
    • Information
      • Fault-tracing information