SUB BATTERY SYSTEM, Diagnostic DTC:U0100, U0129, U0131, U0140, U0164, U1107

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0129 Lost Communication with Brake System Control Module
U0131 Lost Communication with Power Steering Control Module
U0140 Lost Communication with Body Control Module
U0164 Lost Communication with HVAC Control Module
U1107 Lost Communication with Power Management Module

DESCRIPTION

The sub-battery module assembly sends and receives signals from the ECM, skid control ECU, rack & pinion power steering gear assembly, main body ECU (multiplex network body ECU), air conditioning amplifier assembly and certification ECU (smart key ECU assembly) via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
U0100 Lost Communication with ECM / PCM "A"

CAN communication malfunction with ECM (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored
U0129 Lost Communication with Brake System Control Module

CAN communication malfunction with skid control ECU (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored
U0131 Lost Communication with Power Steering Control Module

CAN communication malfunction with rack & pinion power steering gear assembly (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored
U0140 Lost Communication with Body Control Module

CAN communication malfunction with main body ECU (multiplex network body ECU) (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored
U0164 Lost Communication with HVAC Control Module

CAN communication malfunction with air conditioning amplifier assembly (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored
U1107 Lost Communication with Power Management Module

CAN communication malfunction with certification ECU (Smart Key ECU Assembly) (CAN system malfunction)

(1 trip detection logic)

 CAN communication system Does not come on DTC stored

Tech Tips

The details of a DTC can be checked by using the DTC Sub Code of the freeze frame data that was recorded when the DTC was output.

DTC Sub Code Detail
"47" Communication malfunction between ECM and sub-battery module assembly
"49" Communication malfunction between skid control ECU and sub-battery module assembly
"4F" Communication malfunction between rack & pinion power steering gear assembly and sub-battery module assembly
"44" Communication malfunction between main body ECU (multiplex network body ECU) and sub-battery module assembly
"4E" Communication malfunction between air conditioning amplifier assembly and sub-battery module assembly
"51" Communication malfunction between certification ECU (smart key ECU assembly) and sub-battery module assembly

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the sub battery module condition when malfunctions are detected.

PROCEDURE


  1. GO TO CAN COMMUNICATION SYSTEM


    1. Refer to the CAN Communication System.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END