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Home >> Kia >> 2023 >> Sorento Plug-In Hybrid SX Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Automatic Transaxle System Diagnosis (PHEV) (2 Of 2)) >> DTC U1126-00: Lost Communication With SCU (H-CAN) >> Wiring Inspection >> Circuit Inspection

Circuit Inspection

WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
G14966240Courtesy of KIA MOTORS AMERICA, INC.
Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
  1. Ignition "OFF".
  2. Connect VMI to KDS and launch the oscilloscope (2 channel).
  3. Ignition "ON".
SBW connector 3 (H-CAN high) Chassis ground - Fig.1
SBW connector 4 (H-CAN low) Chassis ground -
  1. Ignition "OFF".
  2. Disconnect the auxiliary battery (-) cable.
  3. Disconnect the electrical connector(s) from the concerned component.
ECM (component side) 80 (H-CAN high) ECM (component side) 81 (H-CAN low) Approx. 120Ω
BMS (component side) 16 (H-CAN high) BMS (component side) 15 (H-CAN low) Approx. 120Ω
SBW connector 3 (H-CAN high) SBW connector 4 (H-CAN low) Approx. 60Ω
SBW connector 3 (H-CAN high) Chassis ground - ∞ (infinity)Ω
SBW connector 4 (H-CAN low) Chassis ground - ∞ (infinity)Ω
G14966241Courtesy of KIA MOTORS AMERICA, INC.

Good 

No Good 

Module Circuit Inspection
Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
  1. Disconnect the electrical connector(s) from the concerned component.
  2. Ignition "ON".
SBW connector 1, 36 (Memory power) Chassis ground - B+
  1. Ignition "OFF".
  2. Disconnect the auxiliary battery (-) cable.
  3. Disconnect the electrical connector(s) from the concerned component.
SBW connector 2, 38 (ground) Chassis ground - Approx. below 1Ω

Good 

No Good