Only Wireless Control Function is Inoperative: Wiring Diagram

Fig 1: Only Wireless Control Function Is Inoperative - Wiring Diagram

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

CHECK WIRELESS DOOR LOCK CONTROL FUNCTION
1. Check the wireless door lock control system (See OPERATION CHECK ).
NG: Go to step 2

OK: END
CHECK DOOR CONTROL TRANSMITTER (LED)
1. Check that the door control transmitter's LED comes on 3 times when the switch is pressed 3 times.
  OK: The door control transmitter's LED comes on 3 times when the switch is pressed 3 times.
NG: Go to step 8

OK: Go to next step.
CHECK WIRELESS DOOR LOCK CONTROL FUNCTION (NORMAL OPERATION)
1. Check that UNLOCK-LOCK operates in normal operation.
  HINT:
  
  Standardized test procedure: Press the transmitter switch for 1 second, directing the beam to the driver's door outside handle from a distance of 1 m (3.28 ft). The transmitter should be pointed directly at the door handle, i.e. at 90--> angle to the vehicle body.
NG: REPLACE TRANSMITTER SUB-ASSEMBLY MODULE SET DOOR CONTROL

OK: Go to next step.

CHECK WIRELESS DOOR LOCK BUZZER

Check if the wireless door lock buzzer sounds.

Result

OUTPUT RESULT TABLE

Condition	Proceed To
Buzzer sounds	A
Buzzer does not sound	Go to "NO ANSWER-BACK (HAZARD WARNING LIGHT AND WIRELESS DOOR LOCK BUZZER) "

A: Go to next step.

SWITCH TO SELF-DIAGNOSTIC MODE
1. Switch to self-diagnostic mode using the intelligent tester.
  1. Connect the intelligent tester to the DLC3.
  2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
    HINT:
    
    Refer to the intelligent tester operator's manual for further details.
2. Switch to self-diagnostic mode by performing the following:
  1. Put the vehicle under the initial condition (See OPERATION CHECK ). (Procedure "A")
  2. Insert the key into the ignition key cylinder and remove it. (Procedure "B")
  3. Within 5 seconds after the key is removed, insert the key into the ignition key cylinder again. (Procedure "C")
  4. Turn the ignition switch to the ON position and turn it back to the LOCK position. (Procedure "D")
  5. Within 30 seconds of turning the ignition switch off again, perform the following 9 times: Turn the ignition switch to the ON position and turn it back to the LOCK position. (Procedure "E")
    HINT:
    - Turning the ignition switch to the ON position after Procedure "E" has been completed will end the self-diagnostic mode.
    - Do not lock or unlock doors during the self-diagnostic mode.
    NOTE: If the self-diagnostic mode cannot be achieved, the system will return to normal mode.
3. Check that the system has switched to self-diagnostic mode by checking the sound of the wireless door lock buzzer.
  OK: The sound pattern of the wireless door lock buzzer should be the same as the patterns shown in the timing chart on the left.
Fig 2: Wireless Door Lock Buzzer Sound Pattern
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 10

OK: Go to next step.

CHECK BY SELF-DIAGNOSTIC MODE

Check the diagnostic outputs when the door control transmitter switch is held down. The diagnostic outputs can be checked by the sound of the wireless door lock buzzer.

Fig 3: Wireless Door Lock Buzzer Sound Pattern

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result

OUTPUT RESULT TABLE

Condition	Proceed To
Unmatched recognition code is output	A
Normal waves patterns from the wireless door lock buzzer are output for LOCK, UNLOCK, PANIC and PWR DOOR	B
No diagnostic outputs are recorded	C

B: REPLACE INSTRUMENT PANEL J/B

C: Go to step 9

A: Go to next step.

REGISTER RECOGNITION CODE
1. Check that the system can switch to the rewrite mode or add mode and whether a recognition code can be registered.
  OK: The system can switch to the rewrite mode or add mode, and a recognition code can be registered.
NG: Go to step 17

OK: END
CHECK TRANSMITTER BATTERY
1. Replace the existing battery with a new or normally functioning one and check that the transmitter LED comes on 3 times when the switch is pressed 3 times.
NG: REPLACE TRANSMITTER SUB-ASSEMBLY MODULE SET DOOR CONTROL

OK: REPLACE TRANSMITTER BATTERY
CHECK DOOR CONTROL RECEIVER
1. Press and hold down any switch on a new or normal door control transmitter for the same vehicle type and check that an unmatched recognition code is output.
  OK: Unmatched recognition code is output.
NG: Go to step 14

OK: REPLACE TRANSMITTER SUB-ASSEMBLY MODULE SET DOOR CONTROL

CONFIRM INPUT METHOD FOR SELF-DIAGNOSTIC MODE

Confirm input method for self-diagnostic mode.

Result

OUTPUT RESULT TABLE

Condition	Proceed To
Method for changing system self-diagnostic mode works	A
Method for changing system self-diagnostic mode does not work	B

B: Go to step 5

A: Go to next step.

READ VALUE OF INTELLIGENT TESTER (UNLOCK WARNING SWITCH)

Connect the intelligent tester to the DLC3.
Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
Select the item below in the DATA LIST and read the display on the intelligent tester.

BODY:

BODY - DATA LIST

Item (Display)	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
KEY UNLK WRN SW	Unlock warning switch / ON or OFF	ON: Ignition key is inserted OFF: Ignition key is not inserted	-

OK: When the ignition key is operated, the display changes as shown above.

OK: Go to step 14

NG: Go to next step.

INSPECT UNLOCK WARNING SWITCH

Disconnect the unlock warning switch connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE TABLE

Tester Connection	Condition	Specified Condition
1 - 2	Switch pressed (Key set)	Below 1 Ω
1 - 2	Switch free (Key removed)	10 kΩ or higher

Fig 4: Disconnecting Unlock Warning Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE UNLOCK WARNING SWITCH

OK: Go to next step.

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - UNLOCK WARNING SWITCH)

Disconnect the multiplex network body ECU (B4) connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE TABLE

Tester Connection	Condition	Specified Condition
B4-21 (KSW) - K4-2	Always	Below 1 Ω
B4-21 (KSW) - Body ground	Always	10 k--> or higher
K4-1 - Body ground	Always	Below 1 Ω

Fig 5: Identifying Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

INSPECT DOOR CONTROL RECEIVER (+B TERMINAL)

Disconnect the door control receiver connector.

Measure the voltage according to the value(s) in the table below.

Standard voltage

STANDARD VOLTAGE TABLE

Tester Connection	Condition	Specified Condition
D3-5 (+B) - Body ground	Always	10 to 14 V

Fig 6: Inspecting Door Control Receiver (+B Terminal)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (+B CIRCUIT)

OK: Go to next step.

INSPECT DOOR CONTROL RECEIVER (E TERMINAL)

Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE TABLE

Tester Connection	Condition	Specified Condition
D3-1 (E) - Body ground	Always	Below 1 Ω

Fig 7: Inspecting Door Control Receiver (E Terminal)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (E CIRCUIT)

OK: Go to next step.

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK BODY ECU - DOOR CONTROL RECEIVER)

Disconnect the multiplex network body ECU (B6) connector.

Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE TABLE

Tester Connection	Condition	Specified Condition
B6-11 (PRG) - D3-3 (PRG)	Always	Below 1 Ω
B6-11 (PRG) - Body ground	Always	10 k--> or higher
B6-12 (RDA) - D3-2 (RDA)	Always	Below 1 Ω
B6-12 (RDA) - Body ground	Always	10 k--> or higher

Fig 8: Identifying Connector Terminals

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step.

REPLACE DOOR CONTROL RECEIVER
1. Replace the door control receiver with normal one.
  OK: The system returns to normal operation.
NG: REPLACE INSTRUMENT PANEL J/B

OK: REPLACE DOOR CONTROL RECEIVER