DESCRIPTION
In Test Mode (signal check), a malfunction in the speed sensor that cannot be detected when the vehicle is stopped can be detected while driving.
Sensor check mode can be entered by connecting terminals TS and CG of the DLC3 and turning the ignition switch from off to ON.
WIRING DIAGRAM
| *a | Skid Control ECU (Brake Actuator Assembly) |
| *b | Power Steering ECU Assembly |
| *c | CAN Communication Line |
CAUTION / NOTICE / HINT
Note
If the power steering ECU assembly or steering column assembly has been replaced, perform the torque sensor zero point calibration Click here.
PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
Check if CAN communication system DTCs are output Click here.
| Result | Proceed to |
|---|---|
| DTC is not output | A |
| DTC is output | B |
| B |
|
CHECK CAN COMMUNICATION SYSTEM Click here |
| A |
|
INSPECT DLC3
| *a | Front view of DLC3 |
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
| Result | Proceed to |
|---|---|
| NG | A |
| OK | B |
| B |
|
INSPECT POWER STEERING ECU ASSEMBLY Click here |
| A |
|
CHECK HARNESS AND CONNECTOR (TS of DLC3 - POWER STEERING ECU ASSEMBLY)
Turn the ignition switch off.
Disconnect the power steering ECU connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Reconnect the power steering ECU connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT POWER STEERING ECU ASSEMBLY
| *a | Front view of DLC3 |
Turn the ignition switch off.
Using SST, connect terminals TS and CG of the DLC3.
Turn the ignition switch to ON.
Check that the PS warning light is blinking.
| Result | Proceed to |
|---|---|
| Check PS warning light is not blinking | A |
| Check PS warning light is blinking (for LHD) | B |
| Check PS warning light is blinking (for RHD) | C |
| A |
|
CHECK POWER STEERING ECU ASSEMBLY Click here |
| B |
|
REPLACE BRAKE ACTUATOR ASSEMBLY Click here |
| C |
|
REPLACE BRAKE ACTUATOR ASSEMBLY Click here |