Toyota CH-R Service Manual: Back Door Entry Unlock Function does not Operate
DESCRIPTION
If the entry unlock function does not operate for the back door only, but the entry lock function operates, the request code is being transmitted properly from the back door. In this case, there may be a problem related to the open switch (connection between the back door opener switch assembly and certification ECU (smart key ECU assembly)).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- The smart key system (for Entry Function) uses the LIN communication
system and CAN communication system. Inspect the communication function
by following How to Proceed with Troubleshooting. Troubleshoot the smart
key system (for Entry Function) after confirming that the communication
systems are functioning properly.
Click here
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- When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
- Check that there are no electrical key transmitter sub-assemblies in the vehicle.
- Before replacing the certification ECU (smart key ECU assembly), refer
to Precaution.
Click here
- After repair, confirm that no DTCs are output.
PROCEDURE
|
1. |
CHECK POWER DOOR LOCK CONTROL SYSTEM |
(a) When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation.
Click here
OK:
Door locks operate normally.
| NG | .gif) |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
.gif)
|
2. |
READ VALUE USING TECHSTREAM (B-DR OPENING OPERATION) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Smart Key > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
B-Dr Opening Operation |
Back door opening operation |
Long, Twice or OFF |
Customize setting displayed |
- |
|
Tester Display |
|---|
|
B-Dr Opening Operation |
|
Result |
Proceed to |
|---|---|
|
Customize setting is Long or Twice |
A |
|
Customize setting is OFF |
B |
| B | |
PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters)
|
|
|
3. |
READ VALUE USING TECHSTREAM (TR/B DOOR UNLOCK SW) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Key / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Smart Key > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Tr/B-Door Unlock SW |
Back door opener switch assembly (open switch) |
ON or OFF |
ON: Back door opener switch assembly (open switch) pressed OFF: Back door opener switch assembly (open switch) not pressed |
|
|
Tester Display |
|---|
|
Tr/B-Door Unlock SW |
OK:
The Techstream display changes correctly in response to the operation of the back door opener switch assembly.
| OK | |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
|
|
4. |
CHECK HARNESS AND CONNECTOR (BACK DOOR OPENER SWITCH ASSEMBLY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) |
(a) Disconnect the M67 certification ECU (smart key ECU assembly) connector.
(b) Disconnect the S8 back door opener switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
M67-26 (TSW5) - S8-3 (UL) |
Always |
Below 1 Ω |
|
M67-26 (TSW5) or S8-3 (UL) - Body ground |
Always |
10 kΩ or higher |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
INSPECT BACK DOOR OPENER SWITCH ASSEMBLY (OPEN SWITCH) |
(a) Remove the back door opener switch assembly.
Click here
(b) Inspect the back door opener switch assembly.
Click here
| OK | |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
| NG | |
REPLACE BACK DOOR OPENER SWITCH ASSEMBLY |
Entry Interior Alarm does not Sound
DESCRIPTION
The smart key system (for Entry Function) uses the buzzer in the combination
meter assembly (meter ECU) to perform various vehicle interior warnings. When the
conditions of each warni ...
Entry Exterior Alarm does not Sound
DESCRIPTION
The smart key system (for Entry Function) uses the wireless door lock buzzer
to perform various vehicle exterior warnings. When the conditions of each warning
are met, the certificati ...
Other materials:
Toyota CH-R Service Manual > Continuously Variable Transaxle System: Output Speed Sensor Circuit No Signal (P0722,P077C,P077D)
DESCRIPTION
The ECM receives a signal from the transmission revolution sensor (NOUT) installed
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pulley) speed in order to control the gear ratio.
The transmission revolution sensor (NOUT) detects the continuously ...
Toyota CH-R Service Manual > Meter / Gauge System: Steering Pad Switch Circuit
DESCRIPTION
The combination meter assembly and steering pad switch assembly are connected
via direct line. The main display and multi-information display in the combination
meter assembly are operated using the switches of the steering pad switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / ...
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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