Procedure:
- Remove key from ignition key cylinder
- Close all doors
- Press lock or unlock switch of door control transmitter module set sub-assembly
| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM10000000134QC |
| Model Year Start: 2018 | Model: Camry | Prod Date Range: [03/2017 - ] |
| Title: DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Key System): Only Wireless Control Function is Inoperative; 2018 - 2024 MY Camry [03/2017 - ] | ||
|
Only Wireless Control Function is Inoperative |
DESCRIPTION
The door control and tire pressure monitoring system receiver assembly receives signals from the door control transmitter module set sub-assembly and sends these signals to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) then controls all doors by sending lock/unlock signals to each door, and sends hazard flasher signals to the combination meter assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
- When replacing or inspecting the door control and tire pressure monitoring system receiver assembly and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control and tire pressure monitoring system receiver assembly, wireless function performance may be affected.
-
When replacing the door control and tire pressure monitoring system receiver assembly, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the Techstream and write them down before removal.
Click here
![2018 MY Camry [03/2017 - 06/2017]; TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: REGISTRATION](/t3Portal/stylegraphics/info.gif)
-
If the door control and tire pressure monitoring system receiver assembly has been replaced, it is necessary to perform initialization (Click here
) after registration (Click here
) of the transmitter IDs to the door control and tire pressure monitoring system receiver assembly.
PROCEDURE
|
1. |
CHECK POWER DOOR LOCK OPERATION |
(a) Check the power door lock operation.
Click here
OK:
Locked doors unlock.
| NG |
|
|
|
2. |
CHECK KEY REMINDER WARNING SYSTEM |
(a) Check that the key reminder warning buzzer operates properly.
Click here
OK:
Key reminder warning buzzer operates properly.
| NG |
|
|
|
3. |
CHECK DOOR CONTROL TRANSMITTER MODULE SET SUB-ASSEMBLY |
(a) When a known good registered door control transmitter module set sub-assembly is used, check that the wireless functions operate properly.
|
Result |
Proceed to |
|---|---|
|
Wireless door lock/unlock function operates properly with a known good door control transmitter module set sub-assembly |
A |
|
Wireless door lock/unlock function does not operate |
B |
| B |
|
|
|
4. |
CHECK TRANSMITTER BATTERY (VOLTAGE) |
(a) Inspect the transmitter battery capacity.
Click here
| OK |
|
REPLACE DOOR CONTROL TRANSMITTER MODULE SET SUB-ASSEMBLY |
| NG |
|
|
5. |
CHECK WAVE ENVIRONMENT |
(a) Bring the door control transmitter module set sub-assembly near the door control and tire pressure monitoring system receiver assembly, and perform wireless operation check.
HINT:
- When the door control transmitter module set assembly is brought near the door control and tire pressure monitoring system receiver assembly, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
- If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
OK:
Wireless functions operate properly.
| OK |
|
END (AFFECTED BY WAVE INTERFERENCE) |
|
|
6. |
CHECK SELF-DIAGNOSTIC MODE |
(a) Switch to self-diagnostic mode.
Click here
(b) Check self-diagnostic mode.
Click here
|
Result |
Proceed to |
|---|---|
|
Normal pattern (wireless door lock buzzer output pattern) is output |
A |
|
Unmatching recognition code is output |
B |
|
No diagnostic output |
C |
| A |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| C |
|
|
|
7. |
CHECK REGISTER RECOGNITION CODE |
(a) Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.
Click here
OK:
Recognition code can be registered.
| OK |
|
END (GO TO OPERATION CHECK) |
| NG |
|
|
8. |
CHECK DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (RESPONSE) |
(a) Prepare a door control transmitter module set sub-assembly from another vehicle.
(b) Press and hold a door control transmitter module set sub-assembly switch.
(c) Check that an unmatching recognition code is output.
OK:
Unmatching recognition code is output.
| NG |
|
REPLACE DOOR CONTROL TRANSMITTER MODULE SET SUB-ASSEMBLY |
|
|
9. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE AND BODY GROUND) |
|
(a) Disconnect the R120 door control and tire pressure monitoring system receiver assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R120-12 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R120-7 (+B) - Body ground |
Always |
11 to 14 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
10. |
CHECK DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (OUTPUT) |
(a) Reconnect the R120 door control and tire pressure monitoring system receiver assembly connector.
|
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK |
|
REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY
|
|
|
11. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY) |
(a) Disconnect the K53 main body ECU (multiplex network body ECU) connector.
(b) Disconnect the R120 door control and tire pressure monitoring system receiver assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R120-4 (RDA) - K53-10 (RDA) |
Always |
Below 1 Ω |
|
R120-5 (PRG) - K53-11 (PRG) |
Always |
Below 1 Ω |
|
R120-4 (RDA) or K53-10 (RDA) - Body ground |
Always |
10 kΩ or higher |
|
R120-5 (PRG) or K53-11 (PRG) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
12. |
REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY |
(a) Temporarily replace the door control and tire pressure monitoring system receiver assembly with a new or known good one.
Click here
|
|
13. |
REGISTER RECOGNITION CODE |
(a) Perform the Registration procedure.
Click here
|
|
14. |
CHECK DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY (OPERATION) |
(a) Check that the doors can be locked and unlocked by the door control transmitter module set sub-assembly lock and unlock switches.
OK:
Doors can be locked and unlocked by the door control transmitter module set sub-assembly.
| OK |
|
END (DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY WAS DEFECTIVE) |
| NG |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
|
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