LEMON Manuals: Even more car manuals for everyone
Home >> Kia >> 2023 >> Sorento X-Line EX >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Abs/ESC Diagnosis (Except HEV) (2 Of 4) >> DTC C1646-86: CAN Message Failure - TCU >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor CAN message
  • Faulty TCM
  • Faulty SCC
  • Communication fault of TCM
  • Open CAN line
Enable Condition
  • Normal battery voltage (9 to 16V)
  • Ignition "ON"
Threshold Value Case1
  • Received an abnormal TCU message (gear select)
Case2
  • Received an abnormal TCU message in SCC (torque converter speed)
Detecting time
  • In control: 500 ms
  • Non-control: 1500 ms
Warning Lamp Case1
  • DBC, AVH, EPB
Case2
  • None
Disable Condition Case1
  • When TCU message is normally received during consecutive 500 ms in the same ignition cycle
Case2
  • After ignition off/on, when TCU message is normally received consecutive 3 times