LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 93 (Battery Management System Diagnosis (HEV)) >> DTC U0293: Lost Communication With Hybrid Powertrain Control Module (C-CAN) >> General Information >> General Description

General Information: General Description

WARNING: This page is about a different variant/trim than selected.

The controllers are mounted on the vehicle communicates others by CAN (H-CAN, C-CAN) Communication way to share information and control their logic. The C-CAN Communication is connected with two wires physically to send information.

In order to successfully perform CAN Communication, BMS-ECU and PCM are equipped with an internal 120Ω termination resistor. BMS ECU sets the DTC related to CAN Communication when the CAN Communication DOES NOT fail by any cause.

■ Field Action When High Voltage Battery Discharges 

SOC % Vehicle Control Logic Warning Lamp Field Action
MIL SVL FUEL
Over 30% Normal Driving - - - -
30 ~ 25% Motor torque limit (Acceleration Delay) - - On
  • Fuelling, Check SOC
On - -
  • Repair the part related to MIL/SVL
  • Charge battery by starting engine
  • Fuelling if necessary
On On -
- On -
On On On
25 ~ 20% Inhibition of EV driving No FATC - - On
  • Fuelling, Check SOC
On - -
  • Repair the part related to MIL/SVL
  • Charge battery by starting engine
  • Fuelling if necessary
On On -
  On -
On On On
20~15% Can not start vehicle On - -
  • Repair the part related to MIL/SVL
  • Start the engine with GDS → Charging battery
  • Fuelling if necessary
On On -
- On -
On On On
Under 15% On - -
  • Repair the part related to MIL/SVL
  • If necessary, Replace Battery Pack
  • Fuelling if necessary
On On -
- On -
On On On