DESCRIPTION
Signals are input into the position control ECU and switch assembly. The built-in ECU manages the signals received from the position control ECU and switch assembly, and operates each motor. If the position control ECU and switch assembly receives more than 2 motor operation signals, the motor is stopped. Manual operation is restarted after the position control ECU and switch assembly receives 1 signal only.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. |
CHECK FRONT POWER SEAT OPERATION |
(a) Check that each function of the power seat operates normally by using the
position control ECU and switch assembly (See page
).
Result |
Proceed to |
---|---|
All power seat functions do not operate |
A |
One or more power seat functions do not operate |
B |
B | ![]() |
GO TO OTHER DIAGNOSIS PROCEDURE (One or more Power Seat Motors do not Operate) |
|
2. |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY - BATTERY) |
(a) Disconnect the T10 position control ECU and switch assembly connectors.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
T10-6 (+B) - Body ground |
Always |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
T10-1 (GND) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Registration
REGISTRATION
PROCEDURE
1. DESCRIPTION OF CODE REGISTRATION
It is necessary to register the transmitter IDs in the tire pressure warning
ECU when replacing a tire pressure warning valve and transmitter and/or a tire pressure
warning ECU.
Prepare all tra ...
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repair" after replacing the fuel pump assembly (See
page ).
PROCEDURE
1. DISCHARGE FUEL SYSTEM PRESSURE
(a) Discharge fuel system pressure (See page
).
2. DISCONNECT CABLE FR ...
Vehicle Speed Sensor Malfunction (B2283)
DESCRIPTION
The skid control ECU converts wheel speed sensor signals into 4-pulse signals
and sends them to the combination meter. After this signal is converted into a more
precise rectangular waveform by the waveform shaping circuit inside the combinati ...