DESCRIPTION
If the tire pressure warning ECU detects a disconnected connector or an open circuit between the tire pressure warning ECU and combination meter, the tire pressure warning light turns off 10 seconds after the ignition switch is turned to ON, blinks for 1 minute, and then remains on.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (COMBINATION METER - TIRE PRESSURE WARNING ECU) |
(a) Disconnect the F14 meter connector.
(b) Disconnect the F7 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F7-5 (IND) - F14-9 (TIRE) |
Always |
Below 1 Ω |
F7-5 (IND) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK COMBINATION METER |
(a) Disconnect the F7 ECU connector.
(b) Turn the ignition switch to ON and check the condition of the tire pressure warning light illumination.
Result
Result |
Proceed to |
---|---|
Turns on after blinking for 1 minute |
A |
Does not turn on after blinking for 1 minute |
B |
A | ![]() |
REPLACE TIRE PRESSURE WARNING ECU |
B | ![]() |
REPLACE COMBINATION METER ASSEMBLY |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK
BODY ECU)
(a) Remove the main body ECU (multiplex network body ECU) (See page
).
(b) Measure the voltage and resistance according to the value(s) in the ...
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSION
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
Ign ...