Inspection method for sensors
- Connect the M-MDS to the DLC-2.
- Turn the ignition switch to the ON position (Engine off). NOTE: If engine starts and runs, perform the following steps at idle.
- Access PIDs for the switch you are inspecting.
- Vibrate the sensor slightly with your finger. If the PID value is unstable or a malfunction occurs, inspect for poor connection and/or poorly mounted sensor.
SYMPTOM TROUBLESHOOTING [DYNAMIC STABILITY CONTROL (DSC)]
- Verify the symptoms, and perform troubleshooting according to the appropriate number.
| No. | Symptom |
|---|
| 1 | Any of the following lights do not illuminate when ignition switch turned to ON position: ABS warning light Brake system warning light DSC indicator light DSC OFF light |
| 2 | Any of the following lights remain on: ABS warning light Brake system warning light DSC indicator light DSC OFF light |
| 3 | There is a malfunction in the system even though ABS warning light, brake system warning light, DSC indicator light and DSC OFF light do not illuminate |
| 4 | ABS or TCS (1) operates frequently |
| TCS does not work correctly |
| 5 | DSC (2) operates frequently |
| DSC does not work correctly |
| (1) DSC system function contains traction control function, DSC indicator light goes on and off while DSC is operating (2) DSC indicator light goes on and off while DSC is operating |
| (1) | DSC system function contains traction control function, DSC indicator light goes on and off while DSC is operating |
| (2) | DSC indicator light goes on and off while DSC is operating |
Scheme 63
Diagnostic procedure
| STEP | INSPECTION | ACTION |
|---|
| 1 | CONFIRM DSC HU/CM DTC Perform the Reading DTCs Procedure. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) Are any DTC present? | Yes | Go the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Go to the next step. |
| 2 | INSPECT WHETHER MALFUNCTION IS IN INSTRUMENT CLUSTER SYSTEM OR OTHER SYSTEM Verify other warning and indicator lights illuminate when the ignition switch is turned to the ON position? Is there any warning and indicator light? | Yes | Go to the next step. |
| No | Replace the instrument cluster, if necessary (power supply system, ground system). (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION ) |
| 3 | INSPECT CONNECTION OF DSC HU/CM CONNECTOR Turn the ignition switch off. Inspect the connection of DSC HU/CM connector. Is the DSC HU/CM connector securely connected? | Yes | Go to the next step. |
| No | Reconnect the DSC HU/CM connector securely, then go to the next step. |
| 4 | INSPECT DSC HU/CM AND RELATED PARTS CONNECTOR TERMINALS Inspect the connection of DSC HU/CM, instrument cluster and related parts connector terminal. Are the terminals securely connected? | Yes | Replace the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION ) |
| No | Reconnect the DSC HU/CM, instrument cluster and related connector terminals securely. |
| STEP | INSPECTION | ACTION |
|---|
| 1 | INSPECT BRAKE FLUID LEVEL Inspect the brake fluid level. Is the brake fluid level normal? | Yes | Go to the next step. |
| No | Add brake fluid. |
| 2 | INSPECT PARKING BRAKE Verify the parking brake lever. Is the parking brake lever released? | Yes | Go to the next step. |
| No | Release the parking brake lever. |
| 3 | INSPECT DSC HU/CM DTC Perform the Reading DTCs Procedure. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) Are any DTC present? | Yes | Go to the appropriate DTC inspection. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Go to the next step. |
| 4 | INSPECT WHETHER MALFUNCTION IS IN CONTROL MODULE CONNECTOR, TERMINAL OR OTHER Verify the ABS warning light and brake system warning light. Do the ABS warning light and brake system warning light go off after 4 s when the ignition switch is turned to the ON position? | Yes | Temporary poor connection in control module connector. Inspect the DSC HU/CM connector: Go to Step 7. Inspect the DSC HU/CM connector terminal: Go to Step 8. |
| No | Go to the next step. |
| 5 | INSPECT BATTERY Inspect the battery. (See BATTERY INSPECTION [LF] ) Is there any malfunction? | Yes | Inspect the charging system. (See GENERATOR INSPECTION [LF] ) Repair or replace the malfunctioning part according to the inspection results. |
| No | Go to the next step. |
| 6 | INSPECT CHARGING SYSTEM Start the engine. Measure the battery voltage with the electrical load (A/C, headlight, etc.) on and the engine idling. Is the voltage normal? | Yes | Go to the next step. |
| No | Inspect the charging system (drive belt tension, generator, etc.). (See GENERATOR INSPECTION [LF] ) Repair or replace the malfunctioning part according to the inspection results. |
| 7 | INSPECT CONNECTION OF DSC HU/CM CONNECTOR Turn the ignition switch off. Inspect the connection of DSC HU/CM connector. Is the DSC HU/CM connector securely connected? | Yes | Go to the next step. |
| No | Reconnect the DSC HU/CM connector securely, then go to the next step. |
| 8 | INSPECT DSC HU/CM AND RELATED PARTS CONNECTOR TERMINALS Inspect the connection of DSC HU/CM, instrument cluster and related parts connector terminal. Are the terminals securely connected? | Yes | Replace the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION ) |
| No | Reconnect the DSC HU/CM, instrument cluster and related connector terminals securely. |
| STEP | INSPECTION | ACTION |
|---|
| 1 | CONFIRM DSC HU/CM DTC Perform the Reading DTCs Procedure. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) Are any DTC present? | Yes | Go the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Go to the next step. |
| 2 | INSPECT DSC SYSTEM Perform "DSC SYSTEM INSPECTION". (See DSC SYSTEM INSPECTION ) Is there any malfunction? | Yes | Repair or replace the malfunctioning part according to the inspection results. |
| No | Inspect the conventional brake system. Repair or replace the malfunctioning part according to the inspection results, if necessary. |
| STEP | INSPECTION | ACTION |
|---|
| 1 | INSPECT DSC HU/CM DTC Perform the Reading DTCs Procedure. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) Are any DTC present? | Yes | Go to the appropriate DTC inspection. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Go to the next step. |
| 2 | INSPECT TIRE SIZE AND TIRE PRESSURE Inspect the tire size and the tire pressure. See WHEEL AND TIRE SPECIFICATION . Is there any malfunction? | Yes | Replace with specified tires and adjust tire pressure. See TIRE PRESSURE ADJUSTMENT (WITH TPMS) |
| No | Go to the next step. |
| 3 | INSPECT PID FOR ABNORMAL OUTPUT FROM ABS WHEEL-SPEED SENSOR USING M-MDS Turn the ignition switch off. Connect the M-MDS to the DLC-2. Perform the PID/Data Monitor and Record Procedure and access the following PIDs: (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) LF_WSPD (LF ABS wheel-speed sensor) LR_WSPD (LR ABS wheel-speed sensor) RF_WSPD (RF ABS wheel-speed sensor) RR_WSPD (RR ABS wheel-speed sensor) Start the engine and drive the vehicle. Verify that the PIDs of the four ABS wheel-speed sensors correspond approximately. Do the vehicle speeds correspond? | Yes | Perform the "Intermittent Concern Troubleshooting". (See PRECAUTION [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | ABS wheel-speed sensor installation inspection: Inspect the ABS wheel-speed sensor for looseness and verify that it is securely installed. Sensor rotor installation inspection: Inspect the ABS wheel-speed sensor rotor for poor installation and chipping of sensor rotor teeth. (If sensor rotor is installed poorly, it may cause output of abnormal wave form at high speed.) Repair or replace the malfunctioning part according to the inspection results. |
| STEP | INSPECTION | ACTION |
|---|
| 1 | INSPECT DSC HU/CM DTC Perform the Reading DTCs Procedure. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) Are any DTC present? | Yes | Go to the appropriate DTC inspection. (See ON-BOARD DIAGNOSTIC [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Go to the next step. |
| 2 | INSPECT INSTALLATION OF COMBINED SENSOR AND STEERING ANGLE SENSOR Inspect the installation of combined sensor and steering angle sensor. Are the sensors securely installed? | Yes | Go to the next step. |
| No | Install the combined sensor and steering angle sensor securely. (See COMBINED SENSOR REMOVAL/INSTALLATION ) (See STEERING ANGLE SENSOR REMOVAL/INSTALLATION ) |
| 3 | VERIFY THAT COMBINED SENSOR AND STEERING ANGLE SENSOR IS INITIALIZED Verify that combined sensor and steering angle sensor was initialized after replacement. Was the initialization performed? | Yes | Perform the "Intermittent Concern Troubleshooting". (See PRECAUTION [DYNAMIC STABILITY CONTROL (DSC)] ) |
| No | Perform the initialization procedure. (See COMBINED SENSOR INITIALIZATION PROCEDURE ) (See STEERING ANGLE SENSOR INITIALIZATION PROCEDURE ) |
