Only Wireless Control Function Is Inoperative
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Only Wireless Control Function is Inoperative
- Only Wireless Control Function is Inoperative
SYSTEM DESCRIPTION
The door control receiver receives a signal from the transmitter via the amplifier antenna and send the signals to the main body ECU through the certification ECU via the CAN line. The main body ECU then controls all doors (including the luggage compartment door) by sending LOCK/UNLOCK signals to each door ECU and by sending a luggage compartment door open signal to the rear junction block ECU via the CAN line.
NOTICE:
* Before performing the inspection, check that there are no problems related to the "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".
* Check that DTC B1242 is not output.
* If the door control transmitter or certification ECU is replaced, the codes must be registered.
* Before performing the inspection, check that the following systems are operating normally.
* Power door lock control system (lock/unlock function)
* Power window control system (power window up/down function)
* Sliding roof system (sliding roof open/close function) (w/ sliding roof system)
* Luggage compartment door opener and closer system (luggage compartment door open function)
* Smart access system with push-button start (for door lock) (lock/unlock function)
* Lighting system (door open/close function)
* When troubleshooting a function, first make sure that the wireless door lock control functions are set to the default setting.
* Before performing the inspection, use the "OPERATION CHECK" procedures to check that there are no problems with the basic wireless functions.
* 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, entry and wireless function performance may be affected.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DOOR CONTROL TRANSMITTER (LED)
(a) Check that the transmitter's LED illuminates 3 times when the switch is pressed 3 times.
OK:
Transmitter's LED illuminates 3 times when switch is pressed 3 times.
OK -- CHECK DOOR CONTROL TRANSMITTER (OPERATION)
NG -- Continue to next step.
2. REPLACE TRANSMITTER BATTERY
(a) Temporarily replace the transmitter battery with a new one Service and Repair.
(b) Check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
NG -- CHECK DOOR CONTROL TRANSMITTER (OPERATION)
OK -- END (TRANSMITTER BATTERY IS DEFECTIVE)
3. CHECK DOOR CONTROL TRANSMITTER (OPERATION)
(a) Temporarily replace the door control transmitter with a new one.
(b) Check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
NG -- CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)
OK -- END (DOOR CONTROL TRANSMITTER IS DEFECTIVE)
4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR CONTROL RECEIVER)
(a) Disconnect the L15 ECU connector.
(b) Disconnect the R37 receiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. CHECK CERTIFICATION ECU
(a) Disconnect the R37 receiver connector.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard resistance:
Standard voltage:
NG -- REPLACE CERTIFICATION ECU
OK -- Continue to next step.
6. CHECK DOOR CONTROL RECEIVER (OUTPUT)
(a) Measure the resistance and voltage according to the value(s) in the table below.
Standard resistance:
Standard voltage:
NG -- REPLACE DOOR CONTROL RECEIVER Removal
OK -- Continue to next step.
7. CHECK BACK WINDOW GLASS (WINDOW GLASS ANTENNA WIRE)
(a) Visually inspect the entire window glass antenna wire's lines for breaks.
(b) Using the tester, check that the window glass antenna wire's lines do not have continuity breaks.
NOTICE:
* Wrap a piece of tin foil around the tip of the negative (-) tester probe as shown in the illustration. Press the foil against the wire's lines with your finger without damaging the wire, and inspect the wire.
* If foreign matter on the glass needs to be cleaned, use a soft, dry cloth to wipe the glass along the wire's lines without damaging the wire.
* Do not use standard detergents or glass cleaners.
(1) Move the tin foil wrapped probe along the wire's lines, and check for line breaks.
OK:
Based on visual inspection and tester inspection, wire line breaks are not present.
NG -- REPAIR WINDOW GLASS ANTENNA WIRE Procedures
OK -- Continue to next step.
8. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - AMPLIFIER ANTENNA)
(a) Disconnect the R37 receiver connector.
(b) Disconnect the R70 antenna connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
9. CHECK AMPLIFIER ANTENNA ASSEMBLY (OPERATION)
(a) Temporarily replace the amplifier antenna with a new one Removal.
(b) Check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
NG -- CHECK DOOR CONTROL RECEIVER (OPERATION)
OK -- END (AMPLIFIER ANTENNA IS DEFECTIVE)
10. CHECK DOOR CONTROL RECEIVER (OPERATION)
(a) Temporarily replace the door control receiver with a new one Removal.
(b) Check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
NG -- CHECK CERTIFICATION ECU (OPERATION)
OK -- END (DOOR CONTROL RECEIVER IS DEFECTIVE)
11. CHECK CERTIFICATION ECU (OPERATION)
(a) Temporarily replace the certification ECU with a new one.
(b) Check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
NG -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
OK -- END (CERTIFICATION ECU IS DEFECTIVE)