The door control and tire pressure monitoring system receiver assembly receives signals from the door control transmitter 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.
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.
Before replacing the door control transmitter assembly, refer to Service Bulletin.
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 GTS and write them down before removal.
If the door control and tire pressure monitoring system receiver assembly has been replaced, it is necessary to perform initialization (Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type B))>INITIALIZATION202304,999999,_53,_080780,_0592791,RM100000002AHU8, after registration (Click here Suspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM (for Gasoline Model (for Type B))>REGISTRATION202304,999999,_53,_080780,_0592791,RM100000002AHU7, ) of the transmitter IDs to the door control and tire pressure monitoring system receiver assembly.
Check the power door lock operation.
Locked doors unlock.
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| OK |
| NG |
OK
NG
Check that the key reminder warning buzzer operates properly.
Key reminder warning buzzer operates properly.
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| OK |
| NG |
OK
NG
When a known good registered door control transmitter 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 assembly | A |
| Wireless door lock/unlock function does not operate | B |
A
B
Inspect the transmitter battery capacity.
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| OK |
| NG |
OK
NG
Bring the door control transmitter assembly near the door control and tire pressure monitoring system receiver assembly, and perform wireless operation check.
When the door control transmitter 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.
Wireless functions operate properly.
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| OK |
| NG |
OK
NG
Switch to self-diagnostic mode.
Insert the key into the ignition key cylinder and remove it.
Within 5 seconds after the key is removed, insert it into the ignition key cylinder and then turn the ignition switch ON then off 1 time. (End in off)
Within 30 seconds of turning the ignition switch off, perform the following 9 times: Turn the ignition switch ON then off. (End in off)
Turning the ignition switch ON after the procedure above has been completed will end the self-diagnostic mode.
If the system fails to enter the self-diagnostic mode, the system will return to normal mode.
Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.
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| NEXT |
NEXT
Check the diagnostic outputs when a door control transmitter assembly switch is pressed. The diagnostic outputs can be checked by the interior light patterns.
| Result | Proceed to |
|---|---|
| Normal pattern (interior light output pattern) is output | A |
| Unmatching recognition code is output | B |
| No diagnostic output | C |
A
B
C
Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.
Recognition code can be registered.
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| OK |
| NG |
OK
NG
Prepare a door control transmitter assembly from another vehicle.
Press and hold a door control transmitter assembly switch.
Check that an unmatching recognition code is output.
Unmatching recognition code is output.
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| OK |
| NG |
OK
NG
| *a | Front view of wire harness connector
(to Door Control and Tire Pressure Monitoring System Receiver Assembly) |
Disconnect the O192 door control and tire pressure monitoring system receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O192-12 (GND) - Body ground | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O192-7 (+B) - Body ground | Always | 11 to 14 V |
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| OK |
| NG |
OK
NG
Reconnect the O192 door control and tire pressure monitoring system receiver assembly connector.
| *a | Component with harness connected
(Door Control and Tire Pressure Monitoring System Receiver Assembly) |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O192-4 (RDA) - Body ground | Procedure:
1.
Remove key from ignition key cylinder 2.
Close all doors 3.
Press lock or unlock switch of door control transmitter assembly |
11 to 14 V → pulse generation |
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| OK |
| NG |
OK
NG
Disconnect the I85 main body ECU (multiplex network body ECU) connector.
Disconnect the O192 door control and tire pressure monitoring system receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O192-4 (RDA) - I85-18 (RDA) | Always | Below 1 Ω |
| O192-5 (PRG) - I85-17 (PRG) | Always | Below 1 Ω |
| O192-4 (RDA) or I85-18 (RDA) - Other terminals and body ground | Always | 10 kΩ or higher |
| O192-5 (PRG) or I85-17 (PRG) - Other terminals and body ground | Always | 10 kΩ or higher |
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| OK |
| NG |
OK
NG
Temporarily replace the door control and tire pressure monitoring system receiver assembly with a new or known good one.
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| NEXT |
NEXT
Perform the Registration procedure.
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| NEXT |
NEXT
Check that the doors can be locked and unlocked by the door control transmitter assembly lock and unlock switches.
Doors can be locked and unlocked by the door control transmitter assembly.
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| OK |
| NG |
OK
NG