DESCRIPTION The steering sensor receives the following switch information:
- Light control switch in DRL OFF*, tail, head or AUTO position
- Dimmer switch in high, low or high flash (pass) position
WIRING DIAGRAM
 CAUTION / NOTICE / HINT
NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Click here  PROCEDURE
| 1. |
READ VALUE USING TECHSTREAM | (a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG). (c) Turn the Techstream on.
(d) Enter the following menus: Chassis / Steering Angle Sensor / Data List.
(e) Read the Data List according to the display on the Techstream. Chassis > Steering Angle Sensor > Data List
|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note | |
Light OFF Switch | Light control switch DRL OFF position signal |
OFF or ON | OFF: Light control switch not in DRL OFF position
ON: Light control switch in DRL OFF position |
w/ DRL OFF Switch | |
Auto Light Switch | Light control switch AUTO position signal |
OFF or ON | OFF: Light control switch not in AUTO position
ON: Light control switch in AUTO position |
- | | Head Light Switch (Tail) |
Light control switch tail position signal |
OFF or ON | OFF: Light control switch in neither tail nor head position
ON: Light control switch in tail or head position |
- | | Head Light Switch (Head) |
Light control switch head position signal |
OFF or ON | OFF: Light control switch not in head position
ON: Light control switch in head position |
- | | High Beam Main Switch |
Dimmer switch high position signal |
OFF or ON | OFF: Dimmer switch not in high position
ON: Dimmer switch in high position |
- | | Passing Light Switch |
Dimmer switch high flash position (pass) signal |
OFF or ON | OFF: Dimmer switch not in high flash position
ON: Dimmer switch in high flash position |
- | Chassis > Steering Angle Sensor > Data List
|
Tester Display | | Light OFF Switch | |
Auto Light Switch | |
Head Light Switch (Tail) | |
Head Light Switch (Head) | |
High Beam Main Switch | |
Passing Light Switch | OK: Normal conditions listed above are displayed.
| NG |
 | GO TO STEP 5 |
|
OK |
 | |
| 2. |
READ VALUE USING TECHSTREAM | (a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG). (c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List
|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note | |
Head Light SW (Head) | Light control switch head position signal |
OFF or ON | OFF: Light control switch not in head position
ON: Light control switch in head position |
- | Body Electrical > Main Body > Data List
|
Tester Display | | Head Light SW (Head) |
OK: Normal conditions listed above are displayed.
| OK |
| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
NG | |
| |
| 3. |
INSPECT STEERING SENSOR |
|
*a | Component without harness connected
(Steering Sensor) | - |
- | (a) Remove the steering sensor.
Click here (b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G48-7 (HEAD) - z4-4 (H) |
Always | Below 1 Ω |
| NG |
| REPLACE STEERING SENSOR |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the G33 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
G48-7 (HEAD) - G33-16 (HEAD) |
Always | Below 1 Ω | |
G48-7 (HEAD) or G33-16 (HEAD) - Body ground |
Always | 10 kΩ or higher |
| OK |
| REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 5. |
INSPECT TURN SIGNAL SWITCH | (a) Remove the turn signal switch.
Click here (b) Inspect the turn signal switch.
Click here
| NG |
| REPLACE TURN SIGNAL SWITCH |
|
OK | |
| |
| 6. |
INSPECT STEERING WHEEL SWITCH HOUSING |
(a) Remove the steering wheel switch housing. Click here
(b) Inspect the steering wheel switch housing.
Click here
| OK |
| REPLACE STEERING SENSOR |
| NG |
| REPLACE STEERING WHEEL SWITCH HOUSING | | 
