DESCRIPTION If there is no answer-back of the hazard light signal and the wireless door lock buzzer although the wireless control function is operating normally, there might be a malfunction in the hazard light signal and the wireless door lock buzzer signal which are output from the multiplex network body ECU.
NOTICE: Troubleshooting should be started after confirming that the answer-back function has been switched ON through customization.
WIRING DIAGRAM
INSPECTION PROCEDURE
When using intelligent tester:
1 CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
HINT: When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the multiplex network body ECU
Result
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
BODY:
Result
3 CHECK HAZARD WARNING LIGHTS
REPLACE MULTIPLEX NETWORK BODY ECU
4 INSPECT WIRELESS DOOR LOCK BUZZER
NOTICE:
Standard
5 CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MULTIPLEX NETWORK BODY ECU)
Standard resistance
REPLACE MULTIPLEX NETWORK BODY ECU
When not using intelligent tester:
1 CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
HINT: When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the multiplex network body ECU
Result
2 CHECK HAZARD WARNING LIGHTS
REPLACE MULTIPLEX NETWORK BODY ECU
3 INSPECT WIRELESS DOOR LOCK BUZZER
NOTICE:
Standard resistance
4 CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MULTIPLEX NETWORK BODY ECU)
Standard resistance
REPLACE MULTIPLEX NETWORK BODY ECU
Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
(See page EM-26)
2. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH
HINT:
(See page DS-6)
3. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH
HINT:
(See page DS-6)
4. REMOVE TRANSMISSION CONTROL CABLE CLAMP
(a) Remove the bolt and the transmission control cable
cla ...
Precaution
1. INITIALIZATION
NOTICE:
Perform RESET MEMORY (AT initialization) when
replacing the automatic transaxle assembly, engine
assembly or ECM.
Perform REGISTRATION (VIN registration) when
replacing the ECM.
HINT:
Initialization cannot be completed by only removing the
batt ...
Center Airbag Sensor Assembly Communication
Circuit Malfunction
DTC B1790 Center Airbag Sensor Assembly Communication
Circuit Malfunction
DESCRIPTION
The center airbag sensor assembly communication circuit consists of the
occupant classification ECU and
the center airbag sensor assembly.
DTC B1790 is recorded when a malfunction is detected in the center ...