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

HINT:

• Use the following procedure to troubleshoot the key reminder warning system.
• *: Use the Techstream.

HINT:

• In 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, whether the problem occurred recently or has been occurring for a long time
  Where	Whether the problem occurs at a specific location
  Under what conditions?	Whether the doors were locked or unlocked, whether the ignition switch was ON, whether the engine has started
  How did it happen?	Problem symptoms

System Description

SYSTEM DESCRIPTION KEY REMINDER WARNING SYSTEM DESCRIPTION (a) When the driver door is opened with the ignition switch off or ACC, this system causes a buzzer to sound in order to warn the driver ...

Operation Check

OPERATION CHECK CHECK FUNCTION (a) Check that the key reminder warning buzzer sounds. (1) With the driver door closed, insert the key into the ignition key cylinder and then make sure that the ig ...

Other materials:

Toyota CH-R Service Manual > Immobiliser System(w/o Smart Key System): Push Switch / Key Unlock Warning Switch Malfunction (B2780)
DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is on even when the ignition switch is ON. DTC No. Detection Item DTC Detection Condition Trouble Area Note ...

Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Radio Receiver Power Source Circuit
DESCRIPTION This is the power source circuit to operate the radio and display receiver assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE 1. CHECK HARNES ...