KIA Niro: Basic Inspection Procedure

Measuring Condition of Electronic Parts' Resistance

The measured resistance at high temperature after vehicle running may be high or low. So all resistance must be measured at ambient temperature (20ºC, 68ºF), unless stated otherwise.


The measured resistance in except for ambient temperature (20ºC, 68ºF) is reference value.

Intermittent Problem Inspection Procedure

Sometimes the most difficult case in Troubleshooting is when a problem symptom occurs but does not occur again during testing. An example would be if a problem appears only when the vehicle is cold but has not appeared when warm. In this case, the technician should thoroughly make out a "Customer Problem Analysis Sheet" and recreate (simulate) the environment and condition which occurred when the vehicle was having the issue.

  1. Clear Diagnostic Trouble Code (DTC).
  2. Inspect connector connection, and check terminal for poor connections, loose wires, bent, broken or corroded pins, and then verify that the connectors are always securely fastened.

  1. Slightly shake the connector and wiring harness vertically and horizontally.
  2. Repair or replace the component that has a problem.
  3. Verify that the problem has disappeared with the road test.
  • Simulating Vibration

a. Sensors and Actuators

Slightly vibrate sensors, actuators or relays with finger.


Strong vibration may break sensors, actuators or relays

b. Connectors and Harness

Lightly shake the connector and wiring harness vertically and then horizontally.

  • Simulating Heat

a. Heat components suspected of causing the malfunction with a hair dryer or other heat source.


  • DO NOT heat components to the point where they may be damaged.
  • DO NOT heat the ECM directly.
  • Simulating Water Sprinkling

a. Sprinkle water onto vehicle to simulate a rainy day or a high humidity condition.


DO NOT sprinkle water directly into the engine compartment or electronic components.

  • Simulating Electrical Load

a. Turn on all electrical systems to simulate excessive electrical loads (Radios, fans, lights, rear window defogger, etc.).


     Connector Inspection Procedure

    Handling of Connector a. Never pull on the wiring harness when disconnecting connectors. b. When removing the connector with a lock, press or pull locking lever. c. Listen for a click when locking connectors. This sound indicates that

     Electrical Circuit Inspection Procedure

    Check Open Circuit Procedures for Open Circuit Continuity Check Voltage Check If an open circuit occurs (as seen in (FIG. 1)), it can be found by performing Step 2 (Continuity Check Method) or Step 3 (Voltage Check Method) as s

     Hybrid Control System - Service Data

    Hybrid Power Control Unit (HPCU) Brake Switch Type : ON/OFF Switch DC Fuse High Voltage Battery System Battery Pack Assembly General Specification Warning Main high voltage battery pack assembly (180V) + Sub high voltag


     Troubleshooting - Tire Pressure Monitoring System

    TPMS Inspection method Inspection Warning Find the inspection number by referring to the table above. The following content is irrelevant of the inspection procedure. Warning lamp types Stays on without blinking : Low pressure tir

     Safe Exit Assist operation

    Safe Exit Assist warns the following actions. Collision warning when exiting vehicle Safe Exit Assist linked with Electronic child safety lock Collision warning when exiting vehicle A: Watch for traffic The warning light on the