Power Tilt and Power Telescopic (With Memory)

This system operates with both the tilt function and telescopic function driven automatically by the motor and controlled by the ECU. The steering can be adjusted steplessly forward and back, and up and down, to provide the most suitable steering position for easy driving, with automatic movement of the steering to a position which facilitates getting in and out of the vehicle.

The driver can have the most appropriate driving position memorized by operating the power seat, remote control mirror and seat belt anchorage (driver's) together with the tilt and telescopic steering.

Current is always applied through the PWR fuse to TERMINAL +B of tilt and telescopic ECU and through the SEC HORN fuse to TERMINAL ECUB of tilt and telescopic ECU.

With the ignition SW turned ON, the current flows from GAUGE fuse to TERMINAL IG and from GAUGE fuse to TERMINAL 4 of A/T indicator SW.

1. MANUAL TILT OPERATION
If the ignition key is inserted in the ignition key cylinder and manual operation of the tilt and telescopic does not occur within 30 minutes, manual operation is cancelled, however, manual operation is restored if the ignition SW is turned to ON, or if the ignition key is removed and then reinserted.

When the ignition key is inserted into the ignition key cylinder (unlock warning SW ON), a signal is input to TERMINAL KSW of body ECU --> TERMINAL MPX --> TERMINAL MPX1 of driver door ECU --> TERMINAL MPX2 --> TERMINAL MPX tilt and telescopic ECU. If the manual SW is pushed to the "TILT UP" side, current flows from TERMINAL VC of tilt and telescopic ECU to TERMINAL MSW of tilt and telescopic ECU passing through the manual SW. (The ECU Detects The Manual SW Position By The Volume Of Current.)

As a result, tilt and telescopic ECU operates and the current to TERMINAL +B of ECU flows from --> TERMINAL TIM+ --> TERMINAL 10 of comb. SW --> tilt control motor--> TERMINAL 5 of comb. SW --> TERMINAL TIM- of tilt and telescopic ECU --> TERMINAL GND --> GROUND, and the tilt up function operates as long as the manual SW is pushed to the "TILT UP" side.

For "TILT DOWN" operation, when the manual SW is pushed to the down side, the current flowing from ECU to motor flows to TERMINAL TIM-of tilt and telescopic ECU --> TERMINAL 5 of comb. SW --> tilt control motor --> TERMINAL 10 of Comb. SW --> TERMINAL TIM+ of tilt and telescopic ECU, so the motor rotates in the reverse direction to tilt up operation, and tilt down operation occurs only while the manual SW is being pushed.

2. MANUAL TELESCOPIC OPERATION
If the ignition key is inserted in the ignition key cylinder and manual operation of the tilt and telescopic does not occur within 30 minutes, manual operation is cancelled, however, manual operation is restored if the ignition SW is turned to ON, or if the ignition key is removed and then reinserted.

When the ignition key is inserted into the ignition key cylinder (Unlock warning SW ON), a signal is input to TERMINAL KSW of body ECU --> TERMINAL MPX --> TERMINAL MPX1 of driver door ECU --> TERMINAL MPX2 --> TERMINAL MPX tilt and telescopic ECU. When the manual SW is pushed toward "TELESCOPIC SHORT" side, current flows from TERMINAL VC of tilt and telescopic ECU to TERMINAL MSW of tilt and telescopic ECU through the manual SW.

As a result, the tilt and telescopic ECU operates and the current to TERMINAL +B of tilt and telescopic ECU flows from TERMINAL TEM+ of tilt and telescopic ECU --> TERMINAL 6 of telescopic position sensor and motor telescopic control motor --> TERMINAL 3 of telescopic position sensor and motor TERMINAL TEM- of tilt and telescopic ECU --> TERMINAL GND --> GROUND, and "TELESCOPIC SHORT" operation occurs as long as the manual SW is pushed to the "TELESCOPIC SHORT" side.

For "TELESCOPIC LONG" operation, when the manual SW is pushed to the telescopic long side, current flowing from tilt and telescopic ECU to the motor flows through TERMINAL TEM- of tilt and telescopic ECU --> TERMINAL 3 of telescopic position sensor and motor telescopic control motor --> TERMINAL 6 of telescopic position sensor and motor --> TERMINAL TEM+ of tilt and telescopic ECU --> TERMINAL GND -->GROUND.

As a result, the motor rotates in reverse to the telescopic short mode and telescopic long operation occurs as long as the manual SW is pushed to the "TELESCOPIC LONG" side.

3. AUTO AWAY OPERATION
When the ignition SW is turned from ON to OFF, the current stops flowing from cause fuse to TERMINAL IG of tilt and telescopic ECU and is input as a signal that the ignition SW is OFF.

If the ignition key is removed from the ignition key cylinder (Unlock warning SW OFF) at this time, a signal is input from TERMINAL KSW of body ECU --> TERMINAL MPX --> TERMINAL MPX1 of driver door ECU --> TERMINAL MPX2 --> TERMINAL MPX tilt and telescopic ECU. Also, the tilt position sensor inputs into TERMINAL TIS of the tilt and telescopic ECU a signal of the steering tilt position just before the ignition SW (for unlock warning) is turned from ON to OFF.

As a result, the tilt and telescopic ECU operates and the current to TERMINAL +B of tilt and telescopic flows from TERMINAL TIM+ of tilt and telescopic ECU --> TERMINAL 10 of comb. SW --> tilt control motor--> TERMINAL 5 of comb. SW --> TERMINAL TIM- of tilt and telescopic ECU --> TERMINAL GND --> GROUND, causing the motor to rotate so that "TILT UP" operation occurs automatically.

At the same time, the current from TERMINAL +B of tilt and telescopic ECU to TERMINAL TEM+ flows from TERMINAL 6 of telescopic position sensor and motor --> telescopic control motor --> TERMINAL 11 of telescopic position sensor and motor --> TERMINAL TEM- of tilt and telescopic ECU --> TERMINAL GND --> GROUND, this causes the motor to rotate so that telescopic short operation occurs on auto, and with tilt up operation occurring simultaneously on auto, auto away operation occurs.

4. AUTO RETURN OPERATION
When the steering is in "AUTO AWAY" condition and the ignition key is inserted into the ignition key cylinder (unlock warning SW ON), a signal is input to TERMINAL KSW of body ECU --> TERMINAL MPX --> TERMINAL MPX1 of driver door ECU --> TERMINAL MPX2 --> TERMINAL MPX tilt and telescopic ECU.

As a result, the tilt and telescopic ECU operates and the current to TERMINAL +B of tilt and telescopic ECU flows from TERMINAL TEM- of tilt and telescopic ECU --> TERMINAL 3 of telescopic position sensor and motor telescopic control motor --> TERMINAL 6 of telescopic position sensor and motor --> TERMINAL TEM+ of tilt and telescopic ECU --> TERMINAL GND --> GROUND, and at the same time, current flows from TERMINAL TIM- of tilt and telescopic ECU --> TERMINAL 5 of comb. SW --> tilt control motor TERMINAL 10 of comb. SW --> TERMINAL TIM+ of tilt and telescopic ECU --> TERMINAL GND --> GROUND, causing both the tilt control motor and telescopic control motor to rotate. The motors continue to rotate until the signals input from the tilt position sensor to TERMINAL TIS of tilt and telescopic ECU and from the telescopic position sensor TERMINAL TES of tilt and telescopic ECU (Signals informing the ECU of the current position of the steering) match the position memorized by the ECU prior to auto away operation.

In this way, the steering position is automatically returned to the original position.

When the ignition SW is turned from OFF to ON or the shift lever is shifted to a position other than P or N, auto operation is stopped.