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:
Click here
Click here
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 | ![]() |
GO TO POWER DOOR LOCK CONTROL SYSTEM |
|
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 |
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Registered Device cannot be Deleted
PROCEDURE
1.
DELETE OPERATION
(a) Check if a registered portable player can be deleted normally.
OK:
Registered portable player can be deleted normally.
OK
END
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYM ...
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Audio and Visual System
DTC No.
Detection Item
Link
B1324
Lost Communication with Meter
B1551
HD Radio Tuner Malfunction
B ...