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Home >> Hyundai >> 2021 >> Santa Fe Calligraphy, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Double Clutch Transmission System Diagnosis - 2.5T (4 Of 4) (Except HEV)) >> DTC U0103-82: Lost Communication With Gear Shift Control Module 'A' >> Wiring Inspection >> Circuit Inspection

Circuit Inspection

WARNING: This page is about a different car, the 2022 Hyundai Santa Fe. However, it is still accessible from the selected car via links, so may be relevant.
Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
  1. Ignition "ON"
SCU (PT L-CAN1 high) Chassis ground - Refer to HIGH SPEED CAN COMMUNICATION
SCU (PT L-CAN1 low) Chassis ground -

Good 

No Good 

Module Circuit Inspection 

Module Circuit Inspection
Inspection Condition (+) Probe (-) Probe Specification
Connector Terminal Connector Terminal
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
  3. Ignition "ON".
SCU (Power) Chassis ground - B+
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
SCU (Ground) Chassis ground - Approx. below 1Ω
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
SCU (PT L-CAN1 high) TCM (PT L-CAN1 high) Approx. below 1Ω
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
SCU (PT L-CAN1 low) TCM (PT L-CAN1 low) Approx. below 1Ω

Good 

No Good