DESCRIPTION
Different voltage values are input to the multiplex tilt and telescopic ECU by operating the tilt and telescopic switch. The multiplex tilt and telescopic ECU then judges which motor and in which direction that motor should be moved based on the voltage value.
| DTC No. | Detection Condition | Trouble Area |
|---|---|---|
| B2603 | When operating the tilt and telescopic switch, an abnormal voltage value is input to the multiplex tilt and telescopic ECU. | Harness or connector Tilt and telescopic switch Headlight dimmer switch assembly Multiplex tilt and telescopic ECU |
Scheme 59
Different voltage values are input to the multiplex tilt and telescopic ECU by operating the tilt and telescopic switch. The multiplex tilt and telescopic ECU then judges which motor and in which direction that motor should be moved based on the voltage value.
| DTC No. | Detection Condition | Trouble Area |
|---|---|---|
| B2603 | When operating the tilt and telescopic switch, an abnormal voltage value is input to the multiplex tilt and telescopic ECU. | Harness or connector Tilt and telescopic switch Headlight dimmer switch assembly Multiplex tilt and telescopic ECU |
The tilt motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and makes the steering column tilt up and down. The tilt position sensor (Hall IC) in the tilt motor detects the tilt angle of the steering column and outputs a signal to the multiplex tilt and telescopic ECU based on that angle.
Scheme 60
HINT
Limit positions can be confirmed on the Techstream.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2610 | Tilt operation stops within the operation range while operating. | Harness or connector Tilt position sensor or tilt motor Multiplex tilt and telescopic ECU |
Scheme 61
The telescopic motor is operated by the power source voltage supplied from the multiplex tilt and telescopic ECU and slides the steering column forward and backward. The telescopic position sensor (Hall IC) in the telescopic motor detects the sliding position in the forward and backward directions of the steering column and outputs a signal to the multiplex tilt and telescopic ECU based on that sliding amount.
Scheme 62
HINT
Limit positions can be confirmed on the Techstream.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2611 | Telescopic operation stops within the operation range while operating. | Harness or connector Telescopic position sensor or telescopic motor Multiplex tilt and telescopic ECU |
Scheme 63
The ECU power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2620 | The voltage of the ECU power source drops to 8 V or less and this condition continues for 10 secs. or more. | ECU-B No. 1 fuse Harness or connector Multiplex tilt and telescopic ECU |
Scheme 64
The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the CAN communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) onto the CAN communication bus on a regular schedule. The multiplex tilt and telescopic ECU detects the connection of each ECU based on the signal.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2621 | Periodic signal from the specified ECU has stopped. | CAN communication system Multiplex tilt and telescopic ECU |
The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the CAN communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) onto the CAN communication bus on a regular schedule. The multiplex tilt and telescopic ECU detects the connection of each ECU based on the signal.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2621 | Periodic signal from the specified ECU has stopped. | CAN communication system Multiplex tilt and telescopic ECU |
The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the CAN communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter via the CAN communication bus to prevent improper operation of the auto away/return function during driving.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2624 | The auto away function is disabled with the last vehicle speed signal* of 10 km/h (6 mph) or more. Vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled. | CAN communication system Combination meter Multiplex tilt and telescopic ECU |
HINT
*: If the engine switch is turned off immediately after the vehicle comes to a sudden stop, the last vehicle speed signal may not be 0 km/h (0 mph).
The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the CAN communication bus. Each ECU informs the other ECUs that it is connected to the network by outputting a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter via the CAN communication bus to prevent improper operation of the auto away/return function during driving.
| DTC No. | Detection Item | Trouble Area |
|---|---|---|
| B2624 | The auto away function is disabled with the last vehicle speed signal* of 10 km/h (6 mph) or more. Vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled. | CAN communication system Combination meter Multiplex tilt and telescopic ECU |
HINT
*: If the engine switch is turned off immediately after the vehicle comes to a sudden stop, the last vehicle speed signal may not be 0 km/h (0 mph).
This is the power source for the power tilt and power telescopic steering column system.
Scheme 65
The signals generated by operating the manual switch are sent to the multiplex tilt and telescopic ECU through the communication bus.
When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.
The multiplex tilt and telescopic ECU also receives engine switch signals via this circuit.
