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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 U1004-00: Lost Communication With Hybrid Powertrain Control Module (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.
G14966216Courtesy 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".
HPCU connector 93 (H-CAN high) Chassis ground - Fig.1
HPCU connector 94 (H-CAN low) Chassis ground -
  1. Ignition "OFF".
  2. Disconnect the auxiliary battery (-) cable.
  3. Disconnect the electrical connector(s) from the concerned component.
BMS (component side) 16 (H-CAN high) BMS (component side) 15 (H-CAN low) Approx. 120Ω
ECM (component side) 80 (H-CAN high) ECM (component side) 81 (H-CAN low) Approx. 120Ω
TCM connector 44 (H-CAN high) TCM connector 43 (H-CAN low) Approx. 60Ω
HPCU connector 93 (H-CAN high) HPCU connector 94 (H-CAN low) Approx. 60Ω
HPCU connector 93 (H-CAN high) Chassis ground - ∞ (infinity)Ω
HPCU connector 94 (H-CAN low) Chassis ground - ∞ (infinity)Ω
G14966217Courtesy 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".
HPCU connector 4, 5, 6 (Memory power) Chassis ground - B+
  1. Ignition "OFF".
  2. Disconnect the auxiliary battery (-) cable.
  3. Disconnect the electrical connector(s) from the concerned component.
HPCU connector 1, 2, 3 (ground) Chassis ground - Approx. below 1Ω

Good 

No Good