Toyota CH-R Service Manual: How To Proceed With Troubleshooting

• When troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
• The following 5 items are important points for problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

HINT:

• A humid cabin and a rapid change in temperature may lead to condensation. Condensation in the cabin may cause a short circuit.
• The audio and visual system may not operate normally when the temperature is -20°C (-4°F) or lower, or 65°C (149°F) or higher.

System Diagram

SYSTEM DIAGRAM ...

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Other materials:

Toyota CH-R Service Manual > Pre-collision System: Other System Malfunction (C1A63)
DESCRIPTION The millimeter wave radar sensor receives the throttle signal from the ECM and judges whether the driver is making an acceleration request. When the ECM detects an electronic throttle malfunction, it informs the millimeter wave radar sensor via CAN communication and sets DTC C1A63. ...

Toyota CH-R Service Manual > General Maintenance: Body
BODY TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY (a) If necessary, tighten the bolts and nuts on the chassis parts listed below. Front axle and suspension Drivetrain Rear axle and suspension Brake system Engine mounts Other chassis parts (b) If necessary, tighten ...