DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Main Body ECU Communication Stop Mode |
Either condition is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
PROCEDURE
1. |
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL |
(a) Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the main wire and branch wire.
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
|
2. |
CHECK FOR OPEN IN CAN BUS WIRE (MAIN BODY ECU BRANCH WIRE) |
(a) Disconnect the F9 main body ECU (multiplex network body ECU) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F9-14 (CANH) - F9-13 (CANL) |
Ignition switch off |
54 to 69 Ω |
*a |
Rear view of wire harness connector (to Main Body ECU [Multiplex Network Body ECU]) |
NG | ![]() |
REPAIR OR REPLACE MAIN BODY ECU BRANCH WIRE OR CONNECTOR (CANH, CANL) |
|
3. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND) |
(a) Connect the cable to the negative (-) battery terminal.
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
*a |
Rear view of wire harness connector (to Main Body ECU [Multiplex Network Body ECU]) |
*b |
Front view of wire harness connector (to Main Body ECU [Multiplex Network Body ECU]) |
(b) Remove the main body ECU (multiplex network body ECU) (See page
).
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F10-3 (GND2) - Body ground |
Always |
Below 1 Ω |
A-11 (GND1) - Body ground |
Always |
Below 1 Ω |
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
A-32 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
A-31 (ALTB) - Body ground |
Always |
11 to 14 V |
A-30 (BECU) - Body ground |
Always |
11 to 14 V |
A-29 (ACC) - Body ground |
Ignition switch ACC |
11 to 14 V |
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Installation
INSTALLATION
PROCEDURE
1. INSTALL AUTOMATIC LIGHT CONTROL SENSOR
(a) Attach the 2 claws to install the sensor.
(b) Connect the connector.
2. INSTALL NO. 3 HEATER TO REGISTER DUCT
3. INSTALL NO. 1 SI ...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT DIFFERENTIAL SIDE GEAR SHAFT BEARING RH
(a) Using SST and a press, press in the shaft bearing.
SST: 09223-00010
(b) Using a snap ring expander, install the snap ring.
HINT:
Install the snap ring securely.
2. INST ...