PROCEDURE
1. |
NOISE CONDITION |
(a) Check from which direction the noise comes (front left or right, rear left or right).
OK:
The location of the noise source can be determined.
NG | ![]() |
GO TO STEP 3 |
|
2. |
CHECK SPEAKERS |
(a) Check the installation conditions of the speaker units that are located near the noise source and that there are no cracks, scratches, deformation or other malfunctions.
Result |
Proceed to |
---|---|
No malfunction is found. |
A |
The speaker is installed incorrectly. |
B |
Foreign matter is in a speaker. |
C |
The speaker cone paper is broken. |
D |
B | ![]() |
REINSTALL SPEAKER |
C | ![]() |
REMOVE FOREIGN MATTER |
D | ![]() |
REPLACE SPEAKER |
|
3. |
CHECK NOISE CONDITION |
(a) Check the noise condition.
HINT:
The radio has a noise prevention function to reduce noise when listening to the radio. If a loud noise occurs, check whether the ground at the antenna mounting base and the noise prevention unit are installed and wired correctly.
Condition under which Noise Occurs |
Noise Source |
---|---|
Noise increases when the accelerator pedal is depressed, but stops when the engine is stopped. |
Generator |
Noise occurs during A/C or heater operation. |
Blower motor |
Noise occurs when the horn switch is pressed and released or when pressed and held. |
Horn |
Noise occurs synchronously with the blink of the turn signal. |
Flasher |
Noise occurs during window washer operation. |
Washer |
Noise occurs during wiper operation. |
Wiper |
Noise occurs when the brake pedal is depressed. |
Stop light switch |
Others |
Static electricity |
HINT:
Condition |
Proceed to |
---|---|
The noise source cannot be determined |
A |
The noise source can be determined |
B |
A | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
B | ![]() |
REPAIR OR REPLACE NOISE SOURCE |
Toyota CH-R Service Manual > Tire Pressure Warning System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the tire pressure warning
system.
Make sure that the wireless door lock control system has exited diagnostic
mode before performing the following procedure.
*: Use the Techstream.
PROCEDURE
...
Toyota CH-R Service Manual > Immobiliser System(w/o Smart Key System): System Description
SYSTEM DESCRIPTION
IMMOBILISER SYSTEM DESCRIPTION
The immobiliser system is designed to prevent the vehicle from being stolen.
This system uses the transponder key ECU assembly that stores the key ID codes of
authorized ignition keys. If an attempt is made to start the engine using an unauthor ...