Toyota CH-R Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
- Before replacing the main body ECU (multiplex network body ECU), refer
to Registration.*1
Click here
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- *1: w/ Smart Key System
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 |
|---|---|---|
|
Remote up / down function does not operate |
LIN communication system |
|
|
Multiplex network master switch assembly |
- |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Driver side power window does not operate with power window master switch |
LIN communication system |
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Multiplex network master switch assembly |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Wire harness or connector |
- |
|
|
Front passenger side power window does not operate with front passenger side power window switch |
LIN communication system |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator switch assembly |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Wire harness or connector |
- |
|
|
Rear power window LH does not operate with rear power window switch LH |
LIN communication system |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Rear power window regulator switch assembly (for LH door) |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Wire harness or connector |
- |
|
|
Rear power window RH does not operate with rear power window switch RH |
LIN communication system |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Rear power window regulator switch assembly (for RH door) |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Wire harness or connector |
- |
|
|
Driver side power window auto up / down function does not operate with power window master switch |
LIN communication system |
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Multiplex network master switch assembly |
- |
|
|
Power window position initialization |
- |
|
|
Wire harness or connector |
- |
|
|
Front passenger side power window auto up / down function does not operate with front passenger side power window switch |
Power window regulator motor assembly (for front passenger door) |
|
|
Power window regulator switch assembly |
- |
|
|
Power window position initialization |
- |
|
|
Wire harness or connector |
- |
|
|
Rear power window LH auto up / down function does not operate with rear power window switch LH |
Power window regulator motor assembly (for rear LH door) |
|
|
Rear power window regulator switch assembly (for LH door) |
- |
|
|
Power window position initialization |
- |
|
|
Wire harness or connector |
- |
|
|
Rear power window RH auto up / down function does not operate with rear power window switch RH |
Power window regulator motor assembly (for rear RH door) |
|
|
Rear power window regulator switch assembly (for RH door) |
- |
|
|
Power window position initialization |
- |
|
|
Wire harness or connector |
- |
|
|
All power windows do not operate with driver side door key cylinder or wireless transmitter |
LIN communication system |
|
|
Wireless door lock control system |
- |
|
|
Power door lock control system |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Key-off operation function operates even if operating conditions are not satisfied |
LIN communication system |
|
|
Lighting system |
|
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Main body ECU (Multiplex network body ECU) |
- |
|
|
Auto up operation does not fully close power window (jam protection function is activated) |
Power window position initialization (applicable location) |
|
|
Improper installation (applicable location) |
- |
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Auto down operation does not fully open power window (catch protection function is activated) |
Power window position initialization (applicable location) |
|
|
Improper installation (applicable location) |
- |
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Jam protection function does not operate |
Power window position initialization (applicable location) |
|
|
Power window regulator motor assembly (for driver door) |
- |
|
|
Power window regulator motor assembly (for front passenger door) |
- |
|
|
Power window regulator motor assembly (for rear LH door) |
- |
|
|
Power window regulator motor assembly (for rear RH door) |
- |
|
|
Power windows do not operate using all window switch |
Main body ECU (Multiplex network body ECU) |
|
|
When returning to the vehicle, although window up operation was not performed, window were in a closed state. |
Proceed to "Improper Operation" |
|
|
When returning to the vehicle, although window down operation was not performed, window were in an opened state. |
Proceed to "Improper Operation" |
|
Initialization
INITIALIZATION
INITIALIZE POWER WINDOW CONTROL SYSTEM (ALL DOORS)
NOTICE:
When a door window regulator sub-assembly, power window regulator motor
assembly, door glass or door glass run ...
Terminals Of Ecu
TERMINALS OF ECU
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
(a) Disconnect the J6 multiplex network master switch assembly connector.
(b) Measure the voltage and resistance according to the v ...
Other materials:
Toyota CH-R Service Manual > Steering Lock System: System Description
SYSTEM DESCRIPTION
UNLOCK OPERATION CONDITIONS FOR STEERING LOCK
(a) When the following condition is met, the unlock operation is performed.
The engine switch is on (ACC) or on (IG).
HINT:
When the engine switch is turned on (ACC) or on (IG) and the key and
certification ECU (sma ...
Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 22 (CA2H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central
gateway ECU (network gateway ECU) and t ...
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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