The door control receiver 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.
Inspect the fuses for circuits related to this system before performing the following procedure.
When replacing or inspecting the door control receiver 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 receiver, wireless function performance may be affected.
When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the GTS and write them down before removal.*
*: for 12 Pin Type
If the door control receiver has been replaced, it is necessary to perform initialization (Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>INITIALIZATION201902,201906,_53,_078885,_0382739,RM100000001G6WF,201906,999999,_53,_078885,_0382739,RM100000001IHE2,) after registration (Click hereSuspension>TIRE PRESSURE MONITORING>TIRE PRESSURE WARNING SYSTEM>REGISTRATION201902,201906,_53,_078885,_0382739,RM100000001G6WE,201906,999999,_53,_078885,_0382739,RM100000001IHE1,) of the transmitter IDs to the door control receiver.*
*: for 12 Pin Type
Check the power door lock operation.
Power door lock control system operates properly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check that the key reminder warning buzzer operates properly.
Key reminder warning buzzer operates properly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
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 |
A
B
Inspect the transmitter battery capacity.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Bring the door control transmitter module set sub-assembly near the door control receiver, and perform a wireless operation check.
When the door control transmitter module set assembly is brought near the door control receiver, 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.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check vehicle condition.
| Result | Proceed to |
|---|---|
| for 12 Pin Type | A |
| for 5 Pin Type | B |
A
B
| *a | Front view of wire harness connector
(to Door Control Receiver) |
Disconnect the door control receiver connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Switch Condition | Specified Condition |
|---|---|---|
| Z3-1 (IG) - Body ground | Ignition switch ON | 11 to 14 V |
| Ignition switch off | Below 1 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Switch to self-diagnostic mode.
| Result | Proceed to |
|---|---|
| Normal pattern (interior light and wireless door lock buzzer* output pattern) is output | A |
| Unmatching recognition code is output | B |
| No diagnostic output | C |
*: w/ Wireless Door Lock Buzzer Answer-back Function
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.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Temporarily replace the door control receiver with a new or known good one.
| Proceed to |
|---|
| NEXT |
NEXT
Perform the Registration procedure.
| Proceed to |
|---|
| NEXT |
NEXT
Check that the doors can be locked and unlocked by the door control transmitter module set sub-assembly lock and unlock switches.
Doors can be locked and unlocked by the door control transmitter module set sub-assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Prepare a door control transmitter module set sub-assembly from another vehicle.
Press and hold a door control transmitter module set sub-assembly switch.
Check that an unmatching recognition code is output.
Unmatching recognition code is output.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
*1: for 12 Pin Type
*2: for 5 Pin Type
*3: w/o Stop and Start System
*4: w/ Stop and Start System
| *A | for 12 Pin Type |
| *B | for 5 Pin Type |
| *a | Front view of wire harness connector
(to Door Control Receiver) |
Disconnect the door control receiver connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Z3-12 (GND) - Body ground*1 | Always | Below 1 Ω |
| b2-1 (GND) - Body ground*2 | Always | Below 1 Ω |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Z3-7 (+B) - Body ground*1 | Always | 11 to 14 V |
| b2-5 (+B) - Body ground*2 | Always | 11 to 14 V*3
10.5 to 16 V*4 |
| Result | Proceed to |
|---|---|
| OK | A |
| NG (+B terminal) (w/ Stop and Start System) | B |
| NG (+B terminal) (w/o Stop and Start System) | C |
| NG (Other terminal) |
A
B
C
*1: for 12 Pin Type
*2: for 5 Pin Type
Disconnect the N20 main body ECU (multiplex network body ECU) connector.
Disconnect the Z3*1 or b2*2 door control receiver connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| Z3-4 (RDA2) - N20-10 (RDA)*1 | Always | Below 1 Ω |
| b2-2 (RDA) - N20-10 (RDA)*2 | Always | Below 1 Ω |
| Z3-5 (PRG2) - N20-11 (PRG)*1 | Always | Below 1 Ω |
| b2-3 (PRG) - N20-11 (PRG)*2 | Always | Below 1 Ω |
| Z3-4 (RDA2) or N20-10 (RDA) - Other terminals and body ground*1 | Always | 10 kΩ or higher |
| b2-2 (RDA) or N20-10 (RDA) - Other terminals and body ground*2 | Always | 10 kΩ or higher |
| Z3-5 (PRG2) or N20-11 (PRG) - Other terminals and body ground*1 | Always | 10 kΩ or higher |
| b2-3 (PRG) or N20-11 (PRG) - Other terminals and body ground*2 | Always | 10 kΩ or higher |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the door control receiver connector.
| *A | for 12 Pin Type |
| *B | for 5 Pin Type |
| *a | Front view of wire harness connector
(to Door Control Receiver) |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
|
*1: for 12 Pin Type *2: for 5 Pin Type |
||
| Z3-4 (RDA2) - body ground*1 | Always | 11 to 14 V |
| b2-2 (RDA) - body ground*2 | Always | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *A | for 12 Pin Type |
| *B | for 5 Pin Type |
| *a | Component with harness connected
(Door Control Receiver) |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
|
*1: for 12 Pin Type *2: for 5 Pin Type |
||
| Z3-4 (RDA2) - Body ground*1 | Procedure:
1.
Remove key from ignition key cylinder 2.
Close all doors 3.
Press lock or unlock switch of door control transmitter module set sub-assembly |
11 to 14 V → pulse generation |
| b2-2 (RDA) - Body ground*2 | ||
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the main body ECU (multiplex network body ECU) connector.
| *a | Front view of wire harness connector
(to Main Body ECU (Multiplex Network Body ECU)) |
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N20-11 (PRG) - Body ground | Always | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG