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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Engine Control System Diagnosis - 2.0L (6 Of 6)) >> DTC U0164-00: Lost Communication With HVAC Control Module (FATC CAN Time Out) >> Wiring Inspection >> Circuit Inspection

Circuit Inspection

WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
G13507180Courtesy of KIA MOTORS AMERICA, INC.
G13507181Courtesy of KIA MOTORS AMERICA, INC.
G13507182Courtesy of KIA MOTORS AMERICA, INC.
Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Ignition "ON".
 ECM/PCM connector 77 (P-CAN high) Chassis ground - Fig.1
ECM/PCM connector 60 (P-CAN low)
  1. Ignition "OFF" and disconnect the electrical connector(s) from the concerned component.
 A/C control unit connector - Auto 33 (P-CAN high) A/C control unit connector - Auto 34 (P-CAN low) Approx. 60Ω
A/C control unit connector - Manual 25 (P-CAN high) A/C control unit connector - Manual 26 (P-CAN low)
A/C control unit connector - Auto 33 (P-CAN high) Chassis ground - ∞ (infinity)Ω
A/C control unit connector - Auto 34 (P-CAN low)
A/C control unit connector - Manual 25 (P-CAN high) Chassis ground -
A/C control unit connector - Manual 26 (P-CAN low)
  1. Ignition "OFF" and disconnect the electrical connector(s) from the concerned component.
 ECM/PCM connector 77 (P-CAN high) A/C control unit connector 33 (P-CAN high) - Auto 25 (P-CAN high) - Manual Approx. below 1Ω
ECM/PCM connector 60 (P-CAN low) A/C control unit connector 34 (P-CAN low) - Auto 26 (P-CAN low) - Manual
  1. Ignition "OFF" and disconnect the electrical connector(s) from the concerned component.
 ECM/PCM (component side) 77 (P-CAN high) ECM/PCM (component side) 60 (P-CAN low) Approx. 120Ω
ICU (component side) 9 (P-CAN high) ICU (component side) 8 (P-CAN low)
G13507183Courtesy of KIA MOTORS AMERICA, INC.
Inspection Condition (+) Probe (-) Probe Reference
Connector Terminal Connector Terminal
  1. Disconnect the electrical connector(s) from the concerned component.
  2. Ignition "ON".
 A/C control unit connector - Auto 1 (Memory power) Chassis ground - B+
A/C control unit connector - Auto 22 (ON/START Input) Chassis ground - B+
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
 A/C control unit connector - Auto 16, 40 (ground) Chassis ground - Approx. below 1Ω
  1. Disconnect the electrical connector(s) from the concerned component.
  2. Ignition "ON".
 A/C control unit connector - Manual 1 (Memory power) Chassis ground - B+
A/C control unit connector - Manual 18 (ON/START Input) Chassis ground - B+
  1. Ignition "OFF".
  2. Disconnect the electrical connector(s) from the concerned component.
 A/C control unit connector - Manual 32 (ground) Chassis ground - Approx. below 1Ω

Good 

No Good 

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