DESCRIPTION The distance
control switch is used to set the distance for vehicle-to-vehicle
distance control mode. The distance control switch is installed in the
steering pad switch assembly. The vehicle-to-vehicle distance set value
can be changed by operating the steering pad switch assembly (distance
control switch) while the dynamic radar cruise control system is
controlling vehicle speed in vehicle-to-vehicle distance control mode. WIRING DIAGRAM
 CAUTION / NOTICE / HINT
NOTICE:
- Before replacing the ECM, refer to Registration.
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- The vehicle is equipped with a Supplemental Restraint System (SRS) which
includes components such as airbags. Before servicing (including
removal or installation of parts), be sure to read the precaution for
Supplemental Restraint System.
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- When replacing the forward recognition camera, always replace it with a
new one. If a forward recognition camera which was installed to another
vehicle is used, the information stored in the forward recognition
camera will not match the information from the vehicle. As a result, a
DTC may be stored.
- If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.
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PROCEDURE |
1. | READ VALUE ON TECHSTREAM (DISTANCE CONTROL SWITCH) |
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON.
(c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Radar Cruise 2 / Data List.
(e) Read the Data List according to the display on the Techstream. Powertrain > Radar Cruise2 > Data List |
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note | |
Distance Control Switch |
Distance control switch signal |
ON or OFF | ON: Distance control switch on
OFF: Distance control switch off |
- | OK: The
Data List item shown in the table changes according to the operation of
the steering pad switch assembly (distance control switch).
| OK |
 | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
NG |
 | |
| 2. |
INSPECT STEERING PAD SWITCH ASSEMBLY | (a) Remove the steering pad switch assembly.
Click here (b) Inspect the steering pad switch assembly.
Click here
| NG |
| REPLACE STEERING PAD SWITCH ASSEMBLY |
|
OK | |
| |
| 3. |
INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
(a) Remove the spiral cable with sensor sub-assembly. Click here
(b) Inspect the spiral cable with sensor sub-assembly.
Click here
| NG |
| REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
|
OK | |
| |
| 4. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA, ECM AND BODY GROUND) |
(a) Disconnect the J45 spiral cable with sensor sub-assembly connector.
(b) Disconnect the W9 forward recognition camera connector. (c) Disconnect the A24 ECM connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance (for 1UR-FE): |
Tester Connection | Condition |
Specified Condition | |
J45-11 (DIST) - W9-3 (LKSW) |
Always | Below 1 Ω | |
J45-2 (ECC) - Body ground |
Always | Below 1 Ω | |
J45-11 (DIST) or W9-3 (LKSW) - Body ground |
Always | 10 kΩ or higher |
Standard Resistance (for 3UR-FE, 3UR-FBE): |
Tester Connection | Condition |
Specified Condition | |
J45-11 (DIST) - W9-3 (LKSW) |
Always | Below 1 Ω | |
J45-2 (ECC) - A24-59 (ECCS) |
Always | Below 1 Ω | |
J45-11 (DIST) or W9-3 (LKSW) - Body ground |
Always | 10 kΩ or higher | |
J45-2 (ECC) or A24-59 (ECCS) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 5. |
CHECK HARNESS AND CONNECTOR (ECM - BODY GROUND) |
(a) for 1UR-FE: Disconnect the J45 spiral cable with sensor sub-assembly connector.
(b) for 3UR-FE, 3UR-FBE: Disconnect the D74 ECM connector. (c) Measure the resistance according to the value(s) in the table below.
Standard Resistance (for 1UR-FE): |
Tester Connection | Condition |
Specified Condition | |
J45-2 (ECC) - Body ground |
Always | Below 1 Ω |
Standard Resistance (for 3UR-FE, 3UR-FBE): |
Tester Connection | Condition |
Specified Condition | |
D74-81 (E1) - Body ground |
Always | Below 1 Ω |
|
Result | Proceed to | |
OK (for 3UR-FE, 3UR-FBE) |
A | | OK (for 1UR-FE) |
B | | NG |
C |
| B |
| REPLACE FORWARD RECOGNITION CAMERA |
| C |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
A | |
| |
| 6. |
CHECK ECM (ECM TERMINALS) | (a) Disconnect the A24 and D74 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
A24-59 (ECCS) - D74-81 (E1) |
Always | Below 1 Ω |
| OK |
| REPLACE FORWARD RECOGNITION CAMERA |
| NG |
| REPLACE ECM | | 
