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 |
Power Source Mode does not Change to ON (IG and ACC)
DESCRIPTION
When the engine switch is pushed with the electrical key in the cabin, the power
management control ECU receives signals to change the power source mode.
HINT:
To allow use of the Techstream to inspect the push-button start function when
the ...
Compressor Lock Sensor Circuit (B1422/22)
SYSTEM DESCRIPTION
The ECM sends the engine speed signal to the A/C amplifier via CAN communication.
The A/C amplifier reads the difference between compressor speed and engine speed.
When the difference becomes too large, the A/C amplifier determines that ...
Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT HORN RELAY (ENGINE ROOM JUNCTION BLOCK ASSEMBLY)
(a) Remove the engine room junction block assembly from the engine room
relay block (See page ).
...