DESCRIPTION
If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks (stays on after blinking for 1 minute) and tire pressure monitoring is canceled 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:
Click here
PROCEDURE
1. |
CHECK FOR DTC (CAN COMMUNICATION SYSTEM) |
(a) Check if CAN communication system DTCs are output.
Click here
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.
Click here
Chassis > Tire Pressure Monitor > Clear DTCs(b) Turn the ignition switch off.
(c) Turn the ignition switch to ON.
(d) Check for DTCs.
Click here
Chassis > Tire Pressure Monitor > Trouble CodesOK:
DTC B1247 is not output.
NG |
GO TO DTC (B1247) |
|
3. |
CHECK OPERATION OF TIRE PRESSURE WARNING LIGHT (ACTIVE TEST) |
(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.
Body Electrical > Combination Meter > Active Test
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
---|---|---|---|
Indicat. Tire Pressure Warning System |
Tire pressure warning light |
OFF or ON |
Perform the test with the vehicle stopped and engine idling. |
Tester Display |
---|
Indicat. Tire Pressure Warning System |
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 |
Toyota CH-R Service Manual > Charging System: Charging Failure
PROCEDURE
1.
CHECK GENERATOR PULLEY WITH CLUTCH (ON-VEHICLE INSPECTION)
(a) Start the engine and visually check that the generator rotor assembly (fan)
in the generator assembly is operating.
OK:
The generator rotor assembly (fan) is operating.
NG
...
Toyota CH-R Service Manual > Seat Belt Warning System(w/o Occupant Classification System): Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
HINT:
The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...