DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
INSPECT FUSE (ECU-IG NO. 2) |
(a) Remove the ECU-IG No. 2 fuse from the driver side junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
ECU-IG No. 2 fuse |
Always |
Below 1 Ω |
NG |
REPLACE FUSE |
|
2. |
INSPECT IGNITION RELAY NO. 1 |
(a) Remove the IG1 relay from the driver side junction block. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3 - 5 |
Battery voltage is not applied between terminals 1 and 2 |
10 kΩ or higher |
Battery voltage is applied between terminals 1 and 2 |
Below 1 Ω |
NG |
REPLACE IGNITION RELAY NO. 1 |
|
3. |
CHECK HARNESS AND CONNECTOR (ECU - BATTERY AND BODY GROUND) |
(a) Disconnect the D31 ECU connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
D31-7 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
*1 |
Front view of wire harness connector (to Tire Pressure Warning ECU) |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D31-9 (GND) - Body ground |
Always |
Below 1 Ω |
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Transmission Fluid Temperature Sensor "A" Circuit Low Input (P0712,P0713)
DESCRIPTION
The Automatic Transmission Fluid (ATF) temperature sensor converts the fluid
temperature into a resistance value for use by the TCM.
The TCM applies a voltage to the temperature sensor through terminal THO1 of
the TCM.
The sensor resistanc ...
VSC OFF Indicator Light Remains ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN communication.
Pressing the VSC OFF switch turns off traction control and pressing and holding
this switch turns off traction and VSC controls. If VSC control is turned off, the ...
Power Source Control ECU Malfunction (B2782)
DESCRIPTION
The power management control ECU controls the power supply to activate the steering
lock motor. This prevents the steering wheel from being locked while the vehicle
is moving.
DTC No.
DTC Detecting Condition
T ...