Repair Instruction - Initialization
INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected.
* The initialization procedures are below the table.
1. CALIBRATE COMPASS
NOTICE:
Do not place magnetic or metal objects near the magnetic field sensor.
HINT
The procedures described below are for vehicles without the navigation system.
(a) The location of magnetic north and true north differs depending on the location. Adjustment of the compass' magnetism is required to correct possible compass deviations from true north.
(b) Compass function calibration is necessary when: 1) purchasing a vehicle, 2) disconnecting and reconnecting the cable from the negative (-) battery terminal, 3) replacing a battery, 4) driving the vehicle out of the numbered set zone (see the zone map below, and 5) placing magnetic or metal objects on or near the accessory meter (multi-display).
HINT
If the accessory meter (multi-display) is magnetized, the direction indication on the display blinks.
2. PERFORM CALIBRATION
CAUTION:
* Strictly observe posted speed limits, traffic laws and road conditions.
* Make sure no people are near the vehicle.
NOTICE:
* Perform the circling calibration in a spacious area that does not have artificial magnetic influence. For example, an underground parking lot, an area under a steel tower and an area between tall buildings are not acceptable.
* When performing calibration, do not operate the air conditioner, power window, or any other electrical equipment.
* A compass may become magnetized when the vehicle is shipped by vessels or freight cars. Make sure to perform calibration properly. If calibration cannot be completed despite performing the circling calibration described below, the vehicle's magnetic field may be interfering with the calibration. Demagnetize the vehicle using a demagnetizer and perform calibration again.
(a) Circling calibration
(1) Select compass mode.
(2) Press ODO/TRIP and RESET simultaneously and hold them for 3 seconds to enter the compass correction mode.
(3) Press ODO/TRIP.
(4) Drive the vehicle slowly in a circle once within 128 seconds.
HINT
* After the circling calibration is completed, the correct direction is displayed automatically.
* If ODO/TRIP is pressed in this step, compass correction mode is canceled.
* If the correct direction is not displayed after driving the vehicle as specified, change the vehicle location.
(5) If not enough space is available to drive in a circle, perform the following:
* Drive the vehicle forward with the steering wheel fully turned to the right, and then drive in reverse with the steering wheel fully turned to the left.
* Repeat the pattern above 2 times within 128 seconds.
HINT
* After the circling calibration is completed, the correct direction is displayed automatically.
* If ODO/TRIP is pressed in this step, compass correction mode is canceled.
* If the correct direction is not displayed after driving the vehicle as specified, change the vehicle location.
(b) Zone setting
(1) Select compass mode.
(2) Press ODO/TRIP and RESET simultaneously and hold them for 3 seconds to enter the compass correction mode.
(3) Press RESET to select a higher zone number.
(4) Press ODO/TRIP to end the compass correction mode.
3. INITIALIZE SLIDING FUNCTION AND RECLINING FUNCTION OF POSITION CONTROL ECU
(a) Perform initialization of the position control ECU when any of the following conditions are met. The initialization sets the absolute position of the power seat's sliding and reclining functions.
* The battery is disconnected.
* The D/C CUT fuse is replaced.
* The position control ECU is replaced.
* The power seat is removed from the vehicle.
HINT
Controlling the power seat's sliding and reclining functions together prevents the power seat from interfering with the rear seat during the power seat's sliding or reclining operation.
(b) Initialize the sliding function and reclining function of the position control ECU.
(1) Use the sliding or reclining function with the front power seat switch to move the power seat to the foremost position (lock position). A buzzer sounds for 0.1 seconds.
(2) Use another function (sliding or reclining) which was not used in the previous step to move the front power seat to the foremost position (lock position). A buzzer sounds for 0.5 seconds.
(3) The position control ECU's initialization is completed.
NOTICE:
* If the initialization is not completed, the power seat's sliding and reclining functions cannot be controlled together.
* If the initialization is not completed, a buzzer sounds at 0.45 second intervals while the power seat is sliding backwards or reclining.
* If the initialization is not completed, the position control ECU will not memorize any seat position.
4. CANCEL INITIALIZATION OF POSITION CONTROL ECU
HINT
When the linked control of the power seat's sliding and reclining functions does not work properly, the seat's operational area is restricted. In this case, cancel the initialization of the position control ECU so that the sliding and reclining functions can be operated independently.
(a) Turn the ignition switch to ON.
(b) Press the front power seat switch (front vertical switch) downward 3 times.
HINT
Perform each switch operation within 10 seconds of the previous operation.
(c) Within 10 seconds of the above operation, begin the following operation: perform the rearward reclining operation and upward lifter operation simultaneously for 10 seconds or more (a buzzer sounds for 0.5 seconds). This will clear the memory and cancel the initialization.
HINT
If the seat's operational area is still restricted after the cancellation, the motor is malfunctioning.
NOTICE:
After the cancellation, a buzzer sounds at 0.45 second intervals while the power seat is sliding backwards or reclining. If the initialization is performed again, the buzzer stops.