DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (ECU - BATTERY) |
(a) Disconnect the F7 ECU connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F7-7 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
*a |
Front view of wire harness connector (to Tire Pressure Warning ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (ECU - BODY GROUND) |
(a) Disconnect the F7 ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F7-9 (GND) - Body ground |
Always |
Below 1 Ω |
*a |
Front view of wire harness connector (to Tire Pressure Warning ECU) |
OK | ![]() |
REPLACE TIRE PRESSURE WARNING ECU |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Black Screen
PROCEDURE
1.
CHECK DISPLAY SETTING
(a) Check that the display is not in screen off mode.
OK:
The display setting is not in screen off mode.
NG
CHANGE SCREEN TO SCREEN ON MODE
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