DESCRIPTION
If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks for 1 minute then illuminates, and tire pressure monitoring is disabled at the same time. At this time, the ECU stores a DTC in memory.
Connecting terminals TC and CG of the DLC3 makes the tire pressure warning light blink to output DTCs. The tire pressure warning ECU and receiver sends the tire pressure warning light illumination request signal to the main body ECU (multiplex network body ECU) via a direct line. The main body ECU (multiplex network body ECU) then sends the signal to the combination meter assembly via CAN communication.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK FOR DTC (CAN COMMUNICATION SYSTEM) |
(a) Check if CAN communication system DTCs are output (See page
).
Result |
Proceed to |
---|---|
DTCs are not output. |
A |
DTCs are output. |
B |
B | ![]() |
GO TO CAN COMMUNICATION SYSTEM |
|
2. |
CHECK DTC OUTPUT (B1247) |
(a) Clear the DTCs (See page ).
(b) Turn the ignition switch off.
(c) Turn the ignition switch to ON.
(d) Check for DTCs (See page ).
OK:
DTC B1247 is not output.
NG | ![]() |
GO TO DTC (B1247) |
|
3. |
CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVETEST) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(f) Check the condition of the tire pressure warning light using the Techstream.
Combination Meter
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
---|---|---|---|
Indicat. Tire Pressure Warning System |
Tire pressure warning light |
OFF or ON |
Confirm that the vehicle is stopped with the engine idling. |
OK:
The tire pressure warning light turns on or off in accordance with the Techstream operation.
OK | ![]() |
REPLACE TIRE PRESSURE WARNING ECU AND RECEIVER |
NG | ![]() |
GO TO METER / GAUGE SYSTEM |
Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION
The skid control ECU (master cylinder solenoid) acquires steering angle sensor
(spiral cable with sensor sub-assembly) zero point every time the ignition switch
is turned to ON and the vehicle is driven at 35 km/h (22 mph) or more for approximately
5 seconds. The ECU also stores t ...
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT FENDER SEAL LH
(a) Remove the 5 clips and front fender seal LH.
2. REMOVE FRONT FENDER SEAL RH
HINT:
Use the same procedure as for the LH side.
3. REMOVE FRONT EXHAUST PIPE ASSEMBLY
(a) Disengag ...
ECU Power Source Circuit
DESCRIPTION
This circuit supplies power to the millimeter wave radar sensor assembly when
the ignition switch is ON.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following
inspection procedure.
PROCEDURE
...