DESCRIPTION
The steering pad switch assembly outputs the cruise control power supply switch signal and each operation switch signal to the ECM.
The ECM performs cruise control according to the signal from the steering pad switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
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.
PROCEDURE
READ VALUE USING GTS (CANCEL SWITCH, -SET SWITCH, +RES SWITCH AND CRUISE MAIN SWITCH OPERATION CONDITION)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Cruise Control / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Cancel Switch | CANCEL switch status | ON or OFF | ON: CANCEL switch pushed OFF: CANCEL switch not pushed |
- |
| -SET Switch | -SET switch status | ON or OFF | ON: -SET switch pushed OFF: -SET switch not pushed |
- |
| +RES Switch | +RES switch status | ON or OFF | ON: +RES switch pushed OFF: +RES switch not pushed |
- |
| Cruise Main Switch Operation Condition | Cruise control main switch status | ON or OFF | ON: Cruise control main switch pushed OFF: Cruise control main switch not pushed |
- |
| Tester Display |
|---|
| Cancel Switch |
| -SET Switch |
| +RES Switch |
| Cruise Main Switch Operation Condition |
| OK |
|---|
| The Data List items shown in the table change according to the operation of the steering pad switch assembly. |
| Result | |||
|---|---|---|---|
|
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| NG |
|
INSPECT STEERING PAD SWITCH ASSEMBLY
Remove the steering pad switch assembly.
Inspect the steering pad switch assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE STEERING PAD SWITCH ASSEMBLY Click here |
| OK |
|
INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY
Remove the spiral with sensor cable sub-assembly.
Inspect the spiral with sensor cable sub-assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)
Disconnect the P19 spiral cable sub-assembly connector.
Disconnect the A58 ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Connect the A58 ECM connector.
Connect the P19 spiral cable sub-assembly connector.
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE ECM Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - ECM AND BODY GROUND) |