DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Power Steering 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 (POWER STEERING ECU ASSEMBLY BRANCH WIRE) |
(a) Disconnect the F41 power steering ECU assembly connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F41-1 (CANH) - F41-2 (CANL) |
Ignition switch off |
54 to 69 Ω |
*a |
Rear view of wire harness connector (to Power Steering ECU Assembly) |
NG |
REPAIR OR REPLACE POWER STEERING ECU ASSEMBLY BRANCH WIRE OR CONNECTOR (CANH, CANL) |
|
3. |
CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - 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 ). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F41-3 (GND) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F41-5 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
*a |
Rear view of wire harness connector (to Power Steering ECU Assembly) |
OK |
REPLACE POWER STEERING ECU ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Seat Memory Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT DOOR LOWER FRAME BRACKET GARNISH LH
2. REMOVE NO. 2 DOOR INSIDE HANDLE BEZEL LH
3. REMOVE FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH
4. REMOVE FRONT DOOR INNER GLAS ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitter
Receiver
Signal
Communication Line
Air conditioning amplifier assembly
ECM
A/C idle up request signal
CAN
...