DESCRIPTION
If the tire pressure warning ECU detects a malfunction, the tire pressure warning light blinks for 1 minute then stays on and tire pressure monitor is canceled at the same time. At this time, the ECU records a DTC in the memory.
Connecting terminals TC and CG of the DLC3 allows the tire pressure warning light to blink output DTCs.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
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 by operating the Techstream.
Combination Meter
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Indicat. Tire Pressure Warning System |
Tire pressure warning light |
Tire pressure warning light is off or on |
Confirm that the vehicle is stopped with the engine idling |
OK:
The warning light turns on when operating the Techstream.
NG | ![]() |
GO TO METER / GAUGE SYSTEM |
|
2. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER - TIRE PRESSURE WARNING ECU) |
(a) Disconnect the E2 combination meter connector. |
|
(b) Disconnect the D31 tire pressure warning ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E2-21 (TIRE) - D31-5 (IND) |
Always |
Below 1 Ω |
E2-21 (TIRE) - Body ground |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Tire Pressure Warning ECU) |
*2 |
Front view of wire harness connector (to Combination Meter) |
OK | ![]() |
REPLACE TIRE PRESSURE WARNING ECU |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Antenna Coil Open / Short (B2784)
DESCRIPTION
This DTC is stored when there is an open or short in the transponder key coil
(built into the engine switch).
DTC No.
DTC Detection Condition
Trouble Area
B2784
Transponder key coil i ...
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DESCRIPTION
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The sound signal that has been sent is amplified by the radio and display
receiver ...
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DESCRIPTION
When the engine is running or the ignition switch is ON, the power window regulator
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