Toyota CH-R Service Manual: 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 listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Only driver door LOCK functions do not operate |
Front door lock with motor assembly LH |
|
|
Wire harness or connector |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Only driver door UNLOCK functions do not operate |
Front door lock with motor assembly LH |
|
|
Wire harness or connector |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Only front passenger door LOCK/UNLOCK functions do not operate |
Front door lock with motor assembly RH |
|
|
Wire harness or connector |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Only rear door LH LOCK/UNLOCK functions do not operate. |
Rear door lock with motor assembly LH |
|
|
Wire harness or connector |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Only rear door RH LOCK/UNLOCK functions do not operate. |
Rear door lock with motor assembly RH |
|
|
Wire harness or connector |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Only back door open function does not operate. |
Proceed to "Only Back Door cannot be Opened" |
|
|
All doors LOCK/UNLOCK functions do not operate via door control switch or door key cylinder |
Proceed to "All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder" |
|
|
All doors LOCK/UNLOCK functions do not operate via door control switch |
Proceed to "All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch" |
|
|
All doors LOCK/UNLOCK functions do not operate via multiplex network master switch assembly and door key cylinder. |
Instrument panel junction block assembly |
- |
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Double locking function does not operate properly*2 |
LIN communication system |
|
|
Front door lock with motor assembly LH |
|
|
|
Front door lock with motor assembly RH |
|
|
|
Rear door lock with motor assembly LH |
|
|
|
Rear door lock with motor assembly RH |
|
|
|
Wire harness or connector |
- |
|
|
Double lock door control relay assembly |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Lock operation continues even after doors have been locked*1 |
Front door lock with motor assembly LH |
|
|
Front door lock with motor assembly RH |
|
|
|
Rear door lock with motor assembly LH |
|
|
|
Rear door lock with motor assembly RH |
|
|
|
Wire harness or connector |
- |
|
|
Instrument panel junction block assembly |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state. |
Proceed to "Improper Operation" |
|
|
When returning to the vehicle, although door lock operation was not performed, doors were in a locked state. |
Proceed to "Improper Operation" |
|
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HINT:
- *1: When the door unlock detection switch detects an unlock position signal after a door lock operation has been performed, a door lock operation will be performed 3 times.
- *2: w/o Toyota Safety Sense P
Initialization
INITIALIZATION
BACK DOOR LOCK
(a) When the battery is reconnected:
If the back door is locked and therefore cannot be opened, it is necessary to
unlock the back door using the door control switch ...
Terminals Of Ecu
TERMINALS OF ECU
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK
BODY ECU)
*A
Main Body ECU (Multiplex Network Body ECU) with 2 Connecto ...
Other materials:
Toyota CH-R Service Manual > Heating / Air Conditioning: Air Conditioning Panel
Components
COMPONENTS
ILLUSTRATION
*1
AIR CONDITIONING CONTROL ASSEMBLY
*2
INSTRUMENT CLUSTER FINISH LOWER CENTER PANEL SUB-ASSEMBLY
*3
INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY
-
-
...
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Lost Communication with Meter (B1324)
DESCRIPTION
This DTC is stored when a communication error occurs between the radio and display
receiver assembly and combination meter assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B1324
Lost Communic ...
Toyota C-HR (AX20) 2023-2026 Owner's Manual
Toyota CH-R Owners Manual
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Toyota CH-R Service Manual
- Introduction
- Maintenance
- Audio / Video
- Cellular Communication
- Navigation / Multi Info Display
- Park Assist / Monitoring
- Brake (front)
- Brake (rear)
- Brake Control / Dynamic Control Systems
- Brake System (other)
- Parking Brake
- Axle And Differential
- Drive Shaft / Propeller Shaft
- K114 Cvt
- 3zr-fae Battery / Charging
- Networking
- Power Distribution
- Power Assist Systems
- Steering Column
- Steering Gear / Linkage
- Alignment / Handling Diagnosis
- Front Suspension
- Rear Suspension
- Tire / Wheel
- Tire Pressure Monitoring
- Door / Hatch
- Exterior Panels / Trim
- Horn
- Lighting (ext)
- Mirror (ext)
- Window / Glass
- Wiper / Washer
- Door Lock
- Heating / Air Conditioning
- Interior Panels / Trim
- Lighting (int)
- Meter / Gauge / Display
- Mirror (int)
- Power Outlets (int)
- Pre-collision
- Seat
- Seat Belt
- Supplemental Restraint Systems
- Theft Deterrent / Keyless Entry
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