Precautions for Diagnosing Trouble
To ensure that the trouble diagnosis is done accurately and smoothly, observe the following and follow ESP® SYSTEM CHECK .
Scheme 10
- Before using scan tool, read its "Operator's (Instruction) Manual" to know how to use it.
- If the vehicle was operated in any of the following ways, ABS warning light and ESP® warning light may light momentarily but this does not indicate any fault in ESP® system. The vehicle was driven with parking brake applied. The vehicle was driven with brake dragging. The vehicle was stuck in mud, sand, etc. Wheel spin occurred while driving. Wheel(s) was rotated while the vehicle was jacked up.
- Be sure to follow trouble diagnosis procedure described in «ESP® SYSTEM CHECK»(ref-585576-S35938540912013111200000) . If trouble diagnosis procedure is not followed properly, it may result in incorrect diagnosis. (If incorrect procedure is performed, other DTC may be stored in the ESP® hydraulic unit/control module assembly.)
- When disconnecting ESP® control module connector (1), pull down the lock lever (2) of connector. When connecting, set the connector on ESP® hydraulic unit/control module assembly and pull up the lock lever (2) until it locks.
- Communication of ECM, TCM, BCM, ESP® control module, 4WD control module, D/S control module, DLC, steering angle sensor and combination meter is established by CAN. Therefore, be sure to read «PRECAUTIONS FOR INSTALLING MOBILE COMMUNICATION EQUIPMENT»(ref-585599-S24011873892013111200000) before inspection and handling CAN communication line.
Test with Speedometer Tester or Other Equipments
Note. Before performing speedometer test or other tests using speedometer tester or chassis dynamometer, traction control of ESP® function must be deactivated by ESP® OFF switch or using SUZUKI scan tool.
Problem Symptom Confirmation
If symptom in "Customer Questionnaire" is found or reproduced in the vehicle, confirm the symptom is problem or not. (This step should be done with the customer if possible.) Check warning light related to brake system referring to "EBD warning light (brake warning light) check", "ABS Warning Light Check" and "ESP® Warning Light Check" under WARNING LIGHT CHECK .
DTC Check, Record And Clearance
Perform DTC CHECK procedure, record it and then clear it, see DTC CLEARANCE .
Recheck DTC, see DTC CHECK .
When DTC which is recorded at DTC check procedure is detected again after performing DTC clearance, go to DTC CHECK to proceed the diagnosis.
When DTC which is recorded at DTC check procedure is not indicated anymore after performing DTC clearance, ESP® control module does not perform the system diagnosis, or temporary abnormality may occur, therefore go to STEP 3: DRIVING TEST to proceed the diagnosis.
Step 2: Visual Inspection
As a preliminary step, be sure to perform visual check of the items that support proper function of the ESP® system, see VISUAL INSPECTION .
Step 3: Driving Test
Test the vehicle at 40 km/h (25 mile/h) for more than a minute including left and right turns and check if any trouble symptom (such as ESP® warning light and/or ABS warning light) exists.
Step 4: Brakes Diagnosis
Check the parts or system suspected as a possible cause. Refer to BRAKE SYMPTOM DIAGNOSIS and based on symptoms appearing on the vehicle (symptom obtained through STEPS 1 to 3 ). Repair faulty parts or replace them, if necessary).
Step 6: Final Confirmation Test
Confirm that the problematic symptom has gone and ESP® is free from any abnormal conditions. If what has been repaired is related to malfunction DTC, clear DTC once. Refer to DTC CLEARANCE and perform test driving and confirm that no DTC is indicated.
Visual Inspection
Check the following parts and systems visually.
| Inspection Item | Referring section | |
|---|---|---|
| Battery | Level, leakage | BATTERY DESCRIPTION |
| Connectors of electric wire harness | Disconnection, friction | INTERMITTENT CONNECTION AND POOR CONTACT INSPECTION |
| Fuses | Burning | |
| Brake fluid | Level, leakage | BRAKE FLUID LEVEL INSPECTION |
| ABS warning light | Operation | WARNING LIGHT CHECK |
| EBD warning light (Brake warning light) | Operation | |
| ESP® warning light | Operation | |
| Other parts that can be checked visually | ||
VISUAL INSPECTION CHART
ESP® Symptom Diagnosis
| Condition | Possible Cause | Action |
|---|---|---|
| ESP® warning light keeps lighting on more than 2 seconds after pressing engine switch to change ignition mode of keyless push start system to "ON" | Malfunctioning ESP® function | Perform ESP® check, see ESP® SYSTEM CHECK . |
| Malfunctioning ESP® warning light circuit | Check ESP® system, see ESP® WARNING LIGHT COMES ON STEADY . | |
| ABS warning light keeps lighting on more than 2 seconds after pressing engine switch to change ignition mode of keyless push start system to "ON" | Malfunctioning ESP® function | Perform ESP® check, see ESP® SYSTEM CHECK . |
| Malfunctioning ABS warning light circuit | Repair circuit . | |
| ABS and/or ESP® warning light does not turn ON after pressing engine switch to change ignition mode of keyless push start system to "ON" | Malfunctioning ESP® function | Check ESP® system, see ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" . |
| Faulty combination meter | Check ESP® system, see ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" . | |
| Malfunctioning CAN communication system function | Check CAN communication system, see CAN COMMUNICATION CHECK . | |
| ABS warning light flashes | Brake system is not filled with brake fluid | Fill brake fluid into brake system . |
| EBD warning light (Brake warning light) lights more than 2 seconds after pressing engine switch to change the ignition mode of keyless push start system to "ON" | Parking brake applied | Release parking brake and check that EBD warning light (brake warning light) turns OFF . |
| Insufficient amount of brake fluid | Check brake fluid level, see BRAKE FLUID LEVEL INSPECTION . | |
| Faulty parking brake switch circuit and/or brake fluid level switch circuit | Check BCM and its circuit, see INSPECTION OF BCM AND ITS CIRCUITS . | |
| Faulty parking brake switch and/or brake fluid level switch | Check parking brake switch and/or brake fluid level switch . Parking brake switch: PARKING BRAKE SWITCH ON-VEHICLE INSPECTION Brake fluid level switch: BRAKE FLUID LEVEL SWITCH INSPECTION | |
| Malfunctioning EBD function | Perform ESP® system check, see ESP® SYSTEM CHECK . | |
| Faulty ESP® control module power supply and ground circuit | Check ESP® control module power supply and ground circuit, see ESP® CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT CHECK . | |
| Malfunctioning CAN communication system function | Check CAN communication system, see CAN COMMUNICATION CHECK . | |
| Faulty combination meter | Replace combination meter, see COMBINATION METER REMOVAL AND INSTALLATION . | |
| Faulty BCM | Check BCM and its circuit, see INSPECTION OF BCM AND ITS CIRCUITS . | |
| Faulty ESP® control module | Replace ESP® control module, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | |
| EBD warning light (Brake warning light) does not turn ON after pressing engine switch to change the ignition mode of keyless push start system to "ON" | Malfunctioning ESP® function | Check ESP® system, see ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" . |
| Faulty combination meter | Replace combination meter, see INSTRUMENT PANEL DISASSEMBLY AND REASSEMBLY . | |
| Malfunctioning CAN communication system function | Check CAN communication system . |
ESP SYMPTOM DIAGNOSIS CHART
Scheme 11
- Push engine switch to change the ignition mode of keyless push start system to "ON".
- Check that ESP® warning light (1) comes ON for about 2 seconds and then goes OFF. If ESP® warning light never light up, go to «ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON"»(ref-585576-S14148089142013111200000) . If ESP® warning light remains ON and no DTC is stored in ESP® control module, go to «ESP® WARNING LIGHT COMES ON STEADY»(ref-585576-S42325468882013111200000) .
Scheme 12
- Push engine switch to change ignition mode of keyless push start system to "ON".
- Check that ABS warning light (1) comes ON for about 2 seconds and then goes OFF. If ABS warning light never light up, go to «ABS WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON"»(ref-585576-S15154317942013111200000) . If ABS warning light remains ON and no DTC is stored in ABS control module, go to «ABS WARNING LIGHT COMES ON STEADY»(ref-585576-S13980649632013111200000) .
DTC Clearance
| WARNING | If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur Select a level road with no traffic to minimize the risk of accident. Perform the test extremely carefully. Perform the road test using 2 persons, a driver and an assistant. |
- Confirm that ignition mode of keyless push start system is in "OFF".
- Connect SUZUKI scan tool connector to DLC.
- Push engine switch to change the ignition mode of keyless push start system to "ON".
- Erase DTC according to instructions displayed on scan tool. Refer to scan tool operator's manual for further details.
- Perform " «STEP 3: DRIVING TEST»(ref-585576-S37657072442013111200000) " in ESP® SYSTEM CHECK and «DTC CHECK»(ref-585576-S06015167732013111200000) and confirm that NO DTC is displayed on scan tool.
- Disconnect SUZUKI scan tool connector from DLC after completing the DTC clearance.
DTC Table
Note. If you do not perform the ESP® SYSTEM CHECK before starting the diagnosis, the diagnosis will show a false result. Be sure to perform the ESP® SYSTEM CHECK before starting the diagnosis.
| DTC | DTC name | DTC detecting condition | ABS warning light | EBD warning light | ESP® warning light |
|---|---|---|---|---|---|
| NO DTC | Normal | ||||
| C1015 | Longitudinal G Sensor in Yaw Rate/G sensor Assembly failure | Longitudinal G sensor signal is out of specified range. | OFF (4WD: Lights up) | OFF | Lights up |
| Sensor adhesion is detected by comparing vehicle acceleration and G signal. | Lights up | OFF | Lights up | ||
| C1016 | Brake light switch circuit performance | Master cylinder pressure input signal is detect in spite of no signal from brake light switch. | OFF | OFF | Lights up |
| ECM detects the brake light switch signal for more than the specified time provided that the vehicle speed is over the specified and accelerator pedal is depressed. | OFF | OFF | Lights up | ||
| C1017 | Lateral G sensor circuit performance | Lateral G sensor signal is out of specified range. | OFF (4WD: Lights up) | OFF | Lights up |
| C1020 | Master cylinder pressure sensor power supply voltage | Power supply voltage of brake master cylinder pressure sensor in ESP® control module is out of specification. | OFF | OFF | Lights up |
| C1021 | Right-front wheel speed sensor circuit voltage | Wheel speed sensor signal is out of specified range. | Lights up | Lights up (1) | Lights up |
| C1022 | Right-front wheel speed sensor or encoder signal performance | Abnormal wheel speed sensor signal is detected continuously. | Lights up | Lights up (1) | Lights up |
| C1023 | Yaw rate sensor circuit performance | Yaw rate sensor signal is out of range. | OFF | OFF | Lights up |
| Although vehicle is stop, yaw rate signal is detected. | OFF | OFF | |||
| C1024 (4) | Steering angle sensor circuit performance | CPU in steering angle sensor detects internal defect. | OFF | OFF | Lights up |
| Steering angle sensor signal is out of specified range. | OFF | OFF | |||
| C1025 | Left-front wheel speed sensor circuit voltage | Wheel speed sensor signal is out of specified range. | Lights up | Lights up (1) | Lights up |
| C1026 | Left-front wheel speed sensor or encoder signal performance | Abnormal wheel speed sensor signal is detected continuously. | Lights up | Lights up (1) | Lights up |
| C1027 | ESP® OFF switch failure | ESP® OFF switch keeps ON more than specified time. | OFF | OFF | Lights up |
| C1028 | Master cylinder pressure sensor circuit voltage | Input signal voltage of brake master cylinder pressure sensor in ESP® control module is too high or low. | OFF | OFF | Lights up |
| C1031 | Right-rear wheel speed sensor circuit voltage | Wheel speed sensor signal is out of specified range. | Lights up | Lights up (1) | Lights up |
| C1032 | Right-rear wheel speed sensor or encoder signal performance | Abnormal wheel speed sensor signal is detected continuously. | Lights up | Lights up (1) | Lights up |
| C1033 | Wheel speed sensor deviation | Abnormal wheel speed sensor signal is detected continuously. | Lights up | Lights up (1) | Lights up |
| ABS system is operated for more than specified time. | Lights up | Lights up | Lights up | ||
| Abnormal voltage is detected from wheel speed sensor power supply. | Lights up | OFF | Lights up | ||
| C1035 | Left-rear wheel speed sensor circuit voltage | Wheel speed sensor signal is out of specified range. | Lights up | Lights up (1) | Lights up |
| C1036 | Left-rear wheel speed sensor or encoder signal performance | Abnormal wheel speed sensor signal is detected continuously. | Lights up | Lights up (1) | Lights up |
| C1037 (2) | Steering angle sensor power supply voltage | Steering angle sensor detects abnormal voltage. | OFF | OFF | Lights up |
| C1038 | Steering angle sensor detects rolling counter failure | Steering angle sensor detects abnormal CAN data from ESP® control module. | OFF | OFF | Lights up |
| C1039 | Yaw rate/G sensor assembly internal failure | Yaw rate/G sensor internal failure is detected. | OFF (4WD: Lights up) | OFF | Lights up |
| C1040 | ESP® continuous operation | Stability control is operated for more than specified time. | Lights up | Lights up | Lights up |
| C1041 | Right-front inlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1042 | Right-front outlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1043 | Cut solenoid No. 1 valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1044 | Cut solenoid No. 2 valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1045 | Left-front inlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1046 | Left-front outlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1047 | Both-front wheel speed sensor or encoder signal performance | Yaw rate measured from both front wheel speed sensor does not match with estimated yaw rate. | Lights up | OFF | Lights up |
| C1048 | Both-rear wheel speed sensor or encoder signal performance | Yaw rate measured from both rear wheel speed sensor does not match with estimated yaw rate. | Lights up | OFF | Lights up |
| C1051 | Right-rear inlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1052 | Right-rear outlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1053 | Low pressure solenoid No. 1 valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1054 | Low pressure solenoid No. 2 valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1055 | Left-rear inlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1056 | Left-rear outlet solenoid valve circuit correlation | Solenoid output and solenoid monitor is mismatched. | Lights up | Lights up | Lights up |
| C1057 | Power supply voltage | ESP® control module power supply voltage is over 16.8 V. | Lights up | Lights up | Lights up |
| ESP® control module power supply voltage is between 7.8 V and 9.3 V. | Lights up | OFF | Lights up | ||
| ESP® control module power supply voltage is under 7.7 V. | Lights up | Lights up | Lights up | ||
| C1061 | Pump motor circuit performance | Pump motor is stuck. | Lights up | Lights up | Lights up |
| Pump motor power supply is too low. | |||||
| C1063 | Solenoid valve power supply driver circuit performance | Solenoid valve relay output is ON, although its output is monitored OFF. | Lights up | Lights up | Lights up |
| Solenoid valve relay output is OFF, although its output is monitored ON. | Lights up | OFF | Lights up | ||
| C1071 | ESP® control module internal failure | ESP® control module internal failure is detected. | Lights up | Lights up | Lights up |
| C1074 (3) , (4) | G sensor calibration | G sensor calibration is not completed. | OFF (4WD: Lights up) | OFF | Lights up |
| C1075 (3) , (4) | Steering angle sensor calibration | Steering angle sensor calibration is not completed. | OFF | OFF | Lights up |
| C1084 | ESP® detects message counter failure from EPS | Invalid CAN data is received from P/S controller. (counter value) | OFF | OFF | OFF |
| C1085 | ESP® detects check sum failure from EPS | Invalid CAN data is received from P/S controller. (sum value) | OFF | OFF | OFF |
| C1090 | ECM detect rolling counter failure from ESP® control module | Invalid CAN data is received from ECM. (about engine torque control) | OFF | OFF | Lights up |
| C1091 | CAN invalid data from ECM | DTC concerned with ECM is detected. | OFF | OFF | Lights up |
| C1092 | CAN invalid data from TCM | DTC concerned with TCM is detected. | OFF | OFF | OFF |
| C1093 | 4WD control module data in CAN line failure | DTC concerned with 4WD is detected. | OFF | OFF | Lights up |
| C1094 | Torque request reject status | Invalid CAN data is received from ECM. (about engine torque control) | OFF | OFF | Lights up |
| C1096 | Yaw rate/G sensor assembly message counter error | Invalid CAN data is received from Yaw rate/G sensor. | OFF (4WD: Lights up) | OFF | Lights up |
| C1097 | DTC concerning power steering control module | DTC concerned with P/S is detected. | OFF | OFF | OFF |
| U0073 | Control module communication bus off | Impossible to receive and transmit CAN data. | OFF | OFF | Lights up |
| U0100 | Lost communication with ECM | ECM message data is missing from CAN communication. | OFF | OFF | Lights up |
| U0101 | Lost communication with TCM | CVT message data is missing from CAN communication. | OFF | OFF | OFF |
| U0114 | Lost communication with 4-wheel drive control module | 4WD message data is missing from CAN communication. | OFF | OFF | Lights up |
| U0126 | Lost communication with steering angle sensor | Steering angle sensor message data is missing from CAN communication. | OFF | OFF | Lights up |
| U0134 | Lost communication with power steering control module | P/S message data is missing from CAN communication. | OFF | OFF | OFF |
| U0140 | Lost communication with body control module | BCM message data is missing from CAN communication. | OFF | OFF | OFF |
| (1) If three or more wheel speed sensors are defective, ABS warning light, EBD warning light (brake warning light) and ESP® warning light are lit and all the control functions are deactivated. If one or two wheel speed sensors are defective, ABS warning light and ESP® warning light are lit and ABS and traction control/stability control are deactivated. (2) Only current DTCs are represented. (3) DTC is cleared automatically when sensor is calibrated. (4) In case that both DTC C1024 and C1075 are detected, go to DTC C1024 TROUBLESHOOTING . | |||||
| (1) | If three or more wheel speed sensors are defective, ABS warning light, EBD warning light (brake warning light) and ESP® warning light are lit and all the control functions are deactivated. If one or two wheel speed sensors are defective, ABS warning light and ESP® warning light are lit and ABS and traction control/stability control are deactivated. |
| (2) | Only current DTCs are represented. |
| (3) | DTC is cleared automatically when sensor is calibrated. |
| (4) | In case that both DTC C1024 and C1075 are detected, go to DTC C1024 TROUBLESHOOTING . |
DTC DETECTING CONDITION CHART
Fail-Safe Table
When any of the following DTC(s) is detected, ESP® system is in fail-safe mode per its DTC and ABS, EBD, traction control, stability control are deactivated until the resolution is applied.
| DTC | Fail-safe operation | Fail-safe condition resolution | |||
|---|---|---|---|---|---|
| ABS | EBD | Traction control/Stability control | Hill hold control | ||
| C1015 | O (2WD) - (4WD) | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1016 | O | O | O | ||
| C1017 | O (2WD) - (4WD) | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1020 | O | O | |||
| C1021 | (1) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1022 | (1) | When ESP® control module detects the system as normal. And estimated vehicle speed exceeds 15 km/h (9 mile/h), after changing ignition mode from OFF to ON. | |||
| C1023 | O | O | X (Brake TCS is (5) ) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |
| C1024 | O | O | |||
| C1025 | (1) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1026 | (1) | When ESP® control module detects the system as normal. And estimated vehicle speed exceeds 15 km/h (9 mile/h), after changing ignition mode from OFF to ON. | |||
| C1027 (2) | O | O | |||
| C1028 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1031 | (1) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1032 | (1) | When ESP® control module detects the system as normal. And estimated vehicle speed exceeds 15 km/h (9 mile/h), after changing ignition mode from OFF to ON. | |||
| C1033 | (1) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1035 | (1) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1036 | (1) | When ESP® control module detects the system as normal. And estimated vehicle speed exceeds 15 km/h (9 mile/h), after changing ignition mode from OFF to ON. | |||
| C1037 | O | O | When ESP® control module detects the system as normal. | ||
| C1038 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1039 | O (2WD) - (4WD) | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1040 | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||||
| C1041 | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||||
| C1042 | |||||
| C1043 | |||||
| C1044 | |||||
| C1045 | |||||
| C1046 | |||||
| C1047 | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1048 | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1051 | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||||
| C1052 | |||||
| C1053 | |||||
| C1054 | |||||
| C1055 | |||||
| C1056 | |||||
| C1057 | (3) | When ESP® control module detects the system as normal. In case of FSA test, when ESP® control module detects system as normal after changing ignition mode from OFF to ON. | |||
| C1061 | (5) | When ESP® control module detects the system as normal. And estimated vehicle speed exceeds 15 km/h (9 mile/h), after changing ignition mode from OFF to ON. | |||
| C1063 | (4) | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |||
| C1071 | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||||
| C1074 | O (2WD) - (4WD) | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1075 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1084 | O | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. |
| C1085 | O | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. |
| C1090 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1091 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1092 | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |
| C1093 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1094 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1096 | O (2WD) - (4WD) | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| C1097 | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |
| U0073 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| U0100 | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | ||
| O | O | O | O | ||
| U0101 | O | O | O | ||
| U0114 | O | O | |||
| U0126 | O | O | |||
| U0134 | O | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. |
| U0140 | O | O | O | When ESP® control module detects the system as normal, after changing ignition mode from OFF to ON. | |
| NOTE: o: Activated -: Deactivated | |||||
| (1) If one or two wheel speed sensors are defective, EBD control function is activated. If three or more wheel speed sensors are defective, EBD control function is deactivated. (2) ESP® OFF mode is canceled and all control functions are activated. (3) EBD control function is activated only power supply circuit becomes 7.6 - 9.6 V malfunction. (4) EBD control function is activated if solenoid valve keeps ON position. EBD control function is deactivated if solenoid valve keeps OFF position. (5) Back up control | |||||
| NOTE |
|---|
| O: Activated -: Deactivated |
| (1) | If one or two wheel speed sensors are defective, EBD control function is activated. If three or more wheel speed sensors are defective, EBD control function is deactivated. |
| (2) | ESP® OFF mode is canceled and all control functions are activated. |
| (3) | EBD control function is activated only power supply circuit becomes 7.6 - 9.6 V malfunction. |
| (4) | EBD control function is activated if solenoid valve keeps ON position. EBD control function is deactivated if solenoid valve keeps OFF position. |
| (5) | Back up control |
FAIL-SAFE CHART
Scan Tool Data Definition
| Battery Volt (V) | Battery voltage is an analog input signal read by ESP® control module. ESP® control module functions may be stopped if battery voltage falls below or rises above programmed thresholds. |
|---|---|
| Pump Motor Driver (V) | This parameter indicates operational condition of pump motor driver (transistor). |
| RF Wheel Speed, LF Wheel Speed, RR Wheel Speed and LR Wheel Speed (km/h, MPH) | Wheel speed is ESP® control module internal parameter. It is computed by reference pulses from the wheel speed sensor. |
| Brake Switch (ON, OFF) | This switch signal informs ESP® control module whether the brake is active or not. |
| Master Cyl Press (MPa) | This indicates brake fluid pressure from brake master cylinder. |
| G Sensor (Lateral) (G) | Lateral acceleration is measured by yaw rate/G sensor in ESP® control module. |
| G Sensor (In front and behind) (G) | Acceleration and deceleration is measured by yaw rate/G sensor in ESP® control module. |
| Yaw Rate Sensor (Deg/s) | Yaw rate sensor is measured by yaw rate/G sensor assembly and output to ESP® control module by pulse signal. |
| Steering Angle Sen (°) | Steering wheel rotation angle is measured by steering angle sensor and output to ESP® control module by pulse signal. |
| ESP® OFF SW State (ON, OFF) | This indicates state of ESP® OFF switch. |
| Steering Angle Sig (Neutral, Non N) | This indicates steering wheel angle measured by steering angle sensor is in straight-ahead or not. |
SCAN TOOL DATA DEFINITION CHART
Circuit Description
Operation (ON/OFF) of ESP® warning light is controlled by ESP® control module through light driver module in combination meter.
If ESP® system is in good condition, ESP® control module turns ON ESP® warning light with ignition mode of keyless push start system in "ON", keeps it ON for 2 seconds and then turns it OFF. If any abnormality in the system is detected, ESP® warning light is turned ON continuously by ESP® control module. Also, it is turned ON continuously by light driver module when the connector of ESP® control module is disconnected.
Troubleshooting
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Warning light check Push engine switch to change ignition mode of keyless push start system to "ON". Do other indicator lights come ON? | Go to Step 2. | Go to Step 4. |
| 2 | DTC check Confirm that ignition mode of keyless push start system is in "OFF". Connect scan tool to DLC. Push engine switch to change ignition mode "ON". Check DTC. Is DTC U0073 detected? | Go to " TROUBLESHOOTING FOR COMMUNICATION BUS OFF " | Go to Step 3. |
| 3 | Scan tool parameter check Select "Indicator" function in "Active test". Doses ESP® warning light come ON? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Substitute a known-good combination meter and recheck DTC. |
| 4 | Fuse check Is "MTR" fuse for combination meter in good condition? | Go to Step 5. | Replace "MTR" fuse and check for short circuit to ground. |
| 5 | CAN communication circuit check Check CAN communication circuit between ESP® control module and combination meter. Is it in good condition? | Go to Step 6. | Repair or replace defective wire harness. |
| 6 | Combination meter power supply circuit check Confirm that ignition mode of keyless push start system is "OFF". Remove combination meter. Check for proper connection to "GRY" and "BLK" wire of combination meter connector. If OK, push engine switch to change ignition mode of keyless push start system to "ON" and measure voltage between connector terminal "G240-1" and ground. Measure voltage between "GRY" wire and ground. Is it 10 - 14 V? | Go to Step 7. | Repair power supply circuit for combination meter. |
| 7 | Combination meter ground circuit check Measure resistance between "BLK" wire and ground. Is resistance less than 2 ohms? | Substitute a known-good combination meter and recheck DTC. | "BLK" circuit open. |
DIAGNOSTICS PROCEDURE CHART
Scheme 13
Refer to " CIRCUIT DESCRIPTION " under ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" .
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | ESP® control module connector check Check for proper connection to ESP® control module connector. Is it in good condition? | Go to Step 2. | Connect connector securely. |
| 2 | DTC Check for ESP® Perform DTC CHECK . Is there any DTC(s)? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | ESP® control module power supply and ground circuit check Check ESP® control module power supply circuit and ground circuit, see ESP® CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT CHECK . Are they in good condition? | Substitute a known-good combination meter and recheck DTC, see COMBINATION METER REMOVAL AND INSTALLATION . If ESP® warning light remains ON, substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Repair ESP® control module power supply and ground circuit. |
DIAGNOSTICS PROCEDURE CHART
Operation (ON/OFF) of ABS warning light is controlled by ESP® control module through light driver module in combination meter.
If antilock brake system is in good condition, ESP® control module turns ON ABS warning light when engine switch is pressed to change ignition mode to "ON", keeps it "ON" for 2 seconds and then turns it OFF. If any abnormality in the system is detected, ABS warning light is turned ON continuously by ESP® control module. Also, it is turned ON continuously by light driver module when the connector of ESP® control module is disconnected.
Refer to " TROUBLESHOOTING " under ESP® WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" .
Refer to " CIRCUIT DESCRIPTION " under ABS WARNING LIGHT DOES NOT COME ON AFTER PRESSING ENGINE SWITCH TO CHANGE THE IGNITION MODE OF KEYLESS PUSH START SYSTEM TO "ON" .
Refer to " TROUBLESHOOTING " under ESP® WARNING LIGHT COMES ON STEADY .
Refer to " CIRCUIT DESCRIPTION " under EBD WARNING LIGHT (BRAKE WARNING LIGHT) COMES ON STEADY .
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Warning light check Push engine switch to change ignition mode of keyless push start system to "ON". Does not "ABS" warning light come ON steady? | Perform " ABS WARNING LIGHT COME ON STEADY ". | Go to Step 2. |
| 2 | Scan tool parameter check Select "Indicator" function in "Active test". Dose EBD warning light come ON? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Substitute a known-good combination meter and recheck DTC. |
DIAGNOSTICS PROCEDURE CHART
Scheme 14
EBD warning light (brake warning light) is controlled by ESP® control module and BCM through light driver module in combination meter.
If EBD system is in good condition, ESP® control module turns ON EBD warning light (brake warning light) when engine switch is pressed to change ignition mode of keyless push start system to ON, keeps it ON for 2 seconds and then turns it OFF.
EBD warning light (brake warning light) is turned ON continuously at the following conditions.
- EBD system has an abnormality
- Parking brake lever is pulled up
- Brake fluid level is lower than minimum level
The information of parking brake switch and brake fluid level is transmitted from BCM to light driver module in combination meter through CAN communication line.
Also, it is turned ON continuously by light driver module when the connector of ESP® control module is disconnected.
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | ESP® control module connector check Check for proper connection to ESP® control module connector. Is it in good condition? | Go to Step 2. | Connect connector securely. |
| 2 | Parking brake and brake fluid level check Check the following points. Parking brake is completely released. Brake fluid level is upper than minimum level. Refer to BRAKE FLUID LEVEL INSPECTION Are they in good condition? | Go to Step 3. | Release parking brake and check brake fluid level. |
| 3 | ABS warning light operation check Push engine switch to change ignition mode to "ON". Does "ABS" warning light come ON steady? | Perform " ABS WARNING LIGHT COMES ON STEADY ". | Go to Step 4. |
| 4 | Parking brake switch circuit and brake fluid level switch circuit check Confirm that ignition mode of keyless push start system is "OFF". Disconnect "E05" and "L03" connectors from BCM. Check the following points. Resistance between "E05-18" and ground: 2 ohms or less Resistance between "L03-21" and ground: 2 ohms or less Are they in good condition? | Check each applicable circuit for short to ground. If OK, check parking brake switch and/or brake fluid level switch. Parking brake switch: PARKING BRAKE SWITCH ON-VEHICLE INSPECTION Brake fluid level switch: BRAKE FLUID LEVEL SWITCH INSPECTION | Go to Step 5. |
| 5 | CAN communication circuit check Connect "E05" and "L03" connectors to BCM. Connect scan tool to DLC. Push engine switch to change ignition mode to "ON". Check DTC. Is DTC U0073 detected? | Go to " TROUBLESHOOTING FOR COMMUNICATION BUS OFF " | Go to Step 6. |
| 6 | DTC check for BCM Connect scan tool to DLC. Push engine switch to change ignition mode to "ON". Check DTC for BCM. Is DTC U0073 detected? | Go to " TROUBLESHOOTING FOR COMMUNICATION BUS OFF " | Substitute a know-good combination meter and recheck DTC. IF "ABS" warning light comes ON steady, substitute a know-good ESP® control module, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
DTC INDEX
| DTC | Description |
|---|---|
| DTC C1015 | Longitudinal G Sensor in Yaw rate/G Sensor Assembly Failure |
| DTC C1016 | Brake Light Switch Circuit Performance |
| DTC C1017 | Lateral G Sensor Circuit Performance |
| DTC C1020 | Master Cylinder Pressure Sensor Power Supply Failure |
| DTC C1021 | Right-Front Wheel speed sensor |
| DTC C1022 | Left-Front Wheel speed sensor |
| DTC C1023 | Yaw Rate Sensor Circuit Performance |
| DTC C1024 | Steering Angle Sensor Circuit Performance |
| DTC C1025 | Right-Rear Wheel speed sensor |
| DTC C1026 | Left-Rear Wheel Speed Sensor Circuit Voltage |
| DTC C1027 | ESP® OFF Switch Failure |
| DTC C1028 | Master Cylinder Pressure Sensor Circuit Voltage |
| DTC C1031 | Right-Front Wheel speed sensor |
| DTC C1032 | Right-Rear Wheel speed sensor |
| DTC C1033 | Wheel Speed Sensor Deviation |
| DTC C1035 | Right-Front Wheel speed sensor |
| DTC C1036 | Left-Rear Wheel Speed Sensor or Encoder Signal Performance |
| DTC C1037 | Steering Angle Sensor Power Supply Voltage |
| DTC C1038 | Steering Angle Sensor Detect Rolling Counter Failure |
| DTC C1039 | Yaw Rate / G Sensor Assembly Internal Failure |
| DTC C1040 | ESP® Continuous Operation |
| DTC C1041 | Right-Front ESP® control module power supply circuit |
| DTC C1042 | Right-Front ESP® control module power supply circuit |
| DTC C1043 | Cut Solenoid No. 1 Valve Circuit Correlation |
| DTC C1044 | Cut Solenoid No. 2 Valve Circuit Correlation |
| DTC C1045 | Left-Front ESP® control module power supply circuit |
| DTC C1046 | Left-Front ESP® control module power supply circuit |
| DTC C1047 | Both-Front Wheel Speed Sensor or Encoder Signal Performance |
| DTC C1048 | Both-Rear Wheel Speed Sensor or Encoder Signal Performance |
| DTC C1051 | Right-Rear ESP® control module power supply circuit |
| DTC C1052 | Right-Rear ESP® control module power supply circuit |
| DTC C1053 | Low Pressure Solenoid No. 1 Valve Circuit Correlation |
| DTC C1054 | Low Pressure Solenoid No. 2 Valve Circuit Correlation |
| DTC C1055 | Left-Rear Inlet Solenoid ESP® control module power supply circuit |
| DTC C1056 | Left-Rear Outlet Solenoid ESP® control module power supply circuit |
| DTC C1057 | Power Supply Voltage |
| DTC C1061 | Pump Motor Circuit Performance |
| DTC C1063 | Solenoid Valve Power Supply Driver Circuit Performance |
| DTC C1071 | ESP® Control Module Internal Failure |
| DTC C1074 | G Sensor Calibration |
| DTC C1075 | Steering Angle Sensor Calibration |
| DTC C1084 | ESP® Detects Message Counter Failure From EPS |
| DTC C1085 | ESP® Detects Check Sum Failure From EPS |
| DTC C1090 | ECM Detect Rolling Counter Failure from ESP® Control Module |
| DTC C1091 | CAN Invalid Date from ECM |
| DTC C1092 | CAN Invalid Data from TCM |
| DTC C1093 | 4WD Control Module Data in CAN Line Failure ↓ |
| DTC C1094 | Torque Request Reject Status |
| DTC C1096 | Yaw Rate/G Sensor Assembly Message Counter Error |
| DTC C1097 | DTC concerning Power Steering Control Module |
| DTC U0073 | Control Module Communication Bus Off |
| DTC U0100 | Lost Communication with ECM |
| DTC U0101 | Lost Communication with TCM |
| DTC U0114 | Lost Communication with 4-Wheel Drive Control Module |
| DTC U0126 | Lost Communication with Steering Angle Sensor |
| DTC U0134 | Lost Communication with Power Steering Control Module |
| DTC U0140 | Lost Communication with Body Control Module |
DTC INDEX
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
| C1015: Longitudinal G Sensor in Yaw rate/G Sensor Assembly Failure Longitudinal G sensor is out of specified range. Sensor adhesion is detected by comparing vehicle acceleration and G signal. | ESP® control module |
| C1017: Lateral G Sensor Circuit Performance Lateral G sensor signal is out of specified range. | |
| C1023: Yaw Rate Sensor Circuit Performance Yaw rate sensor signal is out of specified range. Although vehicle is stop, yaw rate signal is detected. |
DTC DETECTING CONDITION CHART
DTC Troubleshooting
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check for ESP® Confirm that ignition mode of keyless push start system is "OFF". Connect SUZUKI scan tool to DLC. Push engine switch to change the ignition mode of keyless push start system to "ON". Check DTC. Is there DTC(s) other than C1051, C1017 and C1023? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good ESP® control module and recheck DTC, ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1016: Brake Light Switch Circuit Performance Brake light switch keeps ON for more than specified time while acceleration pedal is depressed. No signal from brake light switch is detected, although signal from master cylinder pressure sensor is detected. | Brake light switch circuit Brake light switch ECM ESP® control module |
DTC DETECTING CONDITION CHART
Scheme 15
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check for ESP® Perform DTC CHECK . Is DTC U0073 and/or U0100 detected? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | Brake light switch circuit check Check brake light, brake light switch and their circuit. Refer to LIGHTING SYSTEM SYMPTOM DIAGNOSIS Are they in good condition? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Repair or replace. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1020: Master Cylinder Pressure Sensor Power Supply Failure Power supply voltage to brake master cylinder pressure sensor in ESP® control module is out of specification. | ESP® control module |
DTC DETECTING CONDITION CHART
- Push engine switch to change ignition mode of keyless push start system to "ON".
- Check for proper connection to ESP® control module.
- If connections are OK, substitute a known-good ESP® control module, see «ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION»(ref-585576-S27097742422013111200000) .
- Recheck system.
| DTC detecting condition | Trouble area |
|---|---|
| C1021/C1025/C1031/C1035: Right-Front/Left-Front/Right-Rear/Left-Rear Wheel Speed Sensor Circuit Voltage Wheel speed sensor signal is out of specified range. | Wheel speed sensor Wheel speed sensor circuit Rear wheel speed sensor encoder ESP® control module |
| C1022/C1026/C1032/C1036: Right-Front/Left-Front/Right-Rear/Left-Rear Wheel Speed Sensor or Encoder Signal Performance Abnormal wheel speed sensor signal is detected continuously. | |
| C1033: Wheel Speed Sensor Deviation Abnormal wheel speed sensor signal is detected continuously. ABS system is operated for more than specified time. Abnormal voltage is detected from wheel speed sensor power supply. |
DTC DETECTING CONDITION CHART
Note. When vehicle was operated in any of the following ways, one of these DTCs may be set although sensor is in good condition. If such possibility is suspected, clear DTC once, see DTC CLEARANCE and check whether any abnormality exists or not by performing driving test as described in Step 3 of ESP® SYSTEM CHECK . Vehicle was driven with parking brake pulled. Wheel spin occurred while driving. Wheel(s) was turned while vehicle was jacked up.
Scheme 16
Preparation
- Confirm DTC C1057 is not detected.
- Perform the following procedure more than 8 times continuously.
Scheme 17
- Push engine switch to change ignition mode of keyless push start system to "ON".
- Drive at a speed of over 20 km/h (12 mile/h) for more than 1 minute.
- Confirm that ignition mode of keyless push start system is in "OFF". DIAGNOSTICS PROCEDURE CHART Step Action YES NO 1 Was "ESP® System Check" performed? Go to Step 2. Go to «ESP® SYSTEM CHECK»(ref-585576-S35938540912013111200000) . 2 Tire pressure check Check that tire pressure is specified value. Is it in good condition? Go to Step 3. Adjust tire pressure or replace tire and recheck DTC. 3 Wheel speed sensor circuit check Push engine switch to change ignition mode to "OFF". Disconnect "E09" and applicable wheel speed sensor connectors. Check for proper connections to "E09" and wheel speed sensor connectors. If connections are OK, check the following points. Resistance of both "E09" connector (1) terminals a pair of applicable sensor terminals no continuity. (circuit short check) Resistance of applicable sensor terminal of "E09" connector and ground no continuity. (ground short check) Resistance of applicable sensor terminal of "E09" connector and corresponding terminal of wheel speed sensor connector (2) in main harness (for front sensor) or floor harness (for rear sensor) continuity. (continuity check) Voltage of applicable sensor terminal of "E09" connector and ground 0 V (with ignition mode of keyless push start system to "ON". (power short check)) Are they in good condition? Go to Step 4. Repair or replace defective wire harness. 4 Wheel speed sensor signal check Check output voltage or waveform, see «FRONT AND REAR WHEEL SPEED SENSOR ON-VEHICLE INSPECTION»(ref-585576-S21071716272013111200000) . Is specified voltage and/or waveform obtained? Go to Step 6. Go to Step 5. 5 Wheel speed sensor check Check applicable wheel speed sensor, see «FRONT AND REAR WHEEL SPEED SENSOR INSPECTION»(ref-585576-S27606086982013111200000) . Is it in good condition? Go to Step 6. Clean, repair or replace wheel speed sensor. Front wheel speed sensor: «FRONT WHEEL SPEED SENSOR REMOVAL AND INSTALLATION»(ref-585576-S37738961872013111200000) Rear wheel speed sensor: «REAR WHEEL SPEED SENSOR REMOVAL AND INSTALLATION»(ref-585576-S05590903332013111200000) 6 Wheel speed sensor encoder check Check applicable wheel speed sensor encoder, see «FRONT AND REAR WHEEL SPEED SENSOR INSPECTION»(ref-585576-S27606086982013111200000) . Is it in good condition? Substitute a known-good ESP® control module and recheck DTC, see «ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION»(ref-585576-S27097742422013111200000) . Clean or replace front wheel speed sensor encoder and/or rear wheel speed sensor encoder. Front wheel speed sensor encoder: «FRONT WHEEL SPEED SENSOR ENCODER REMOVAL AND INSTALLATION»(ref-585576-S01213939102013111200000) Rear wheel speed sensor encoder: «REAR WHEEL SPEED SENSOR ENCODER REMOVAL AND INSTALLATION»(ref-585576-S36983220442013111200000)
| DTC detecting condition | Trouble area |
|---|---|
| C1024: Steering Angle Sensor Circuit Performance Steering angle sensor internal defect is detected by CPU in steering angle sensor. Steering angle sensor signal is out of specified range. | Steering angle sensor ESP® control module |
DTC DETECTING CONDITION CHART
| CAUTION | Detection of both DTC C1024 and C1075 means internal malfunction of steering angle sensor. Replace steering angle sensor, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . |
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is DTC U0073 and/or U0126 detected? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | Are both DTC C1024 and C1075 detected? | Replace steering angle sensor, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . | Go to Step 4. |
| 4 | Steering angle sensor on-vehicle inspection Check steering angle sensor, see STEERING ANGLE SENSOR ON-VEHICLE INSPECTION . Is it in good condition? | Go to Step 5. | Replace steering angle sensor, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . |
| 5 | Steering angle sensor inspection Check steering angle sensor, see STEERING ANGLE SENSOR INSPECTION . Is it in good condition? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Replace steering angle sensor, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1027: ESP® OFF Switch Failure ESP® switch keeps ON for more than specified time. | ESP® OFF switch ESP® OFF switch circuit ESP® control module |
DTC DETECTING CONDITION CHART
Scheme 18
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | ESP® OFF switch check Confirm that ignition mode of keyless push start system is in "OFF". Remove ESP® OFF switch. See ESP® OFF SWITCH REMOVAL AND INSTALLATION Check each terminal of ESP® OFF switch for proper connection. If connection are OK, check ESP® OFF switch, see ESP® OFF SWITCH INSPECTION . Is it in good condition? | Go to Step 3. | Replace ESP® OFF switch. |
| 3 | ESP® OFF switch circuit check Disconnect "E09" connector. Check for proper connection to "E09-30" terminal. If connection is OK, check resistance between "E09-30" terminal and ground. Is resistance infinite? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | "GRY" wire circuit is shorted to ground. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1028: Master Cylinder Pressure Sensor Circuit Voltage Input signal voltage of brake master cylinder pressure sensor in ESP® control module is too high or low. | Brake system ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | Brake system check Check the following points. Leakage of brake fluid or air in the hydraulic brake system. Clearance between brake pad and disc too high. Are they in good condition? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Repair, replace or adjust brake system. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1037: Steering Angle Sensor Power Supply Voltage Steering angle sensor detects abnormal voltage. | Steering angle sensor power supply circuit Steering angle sensor ground circuit Steering angle sensor ESP® control module |
DTC DETECTING CONDITION CHART
Scheme 19
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2 | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Confirm that ignition mode of keyless push start system is in "OFF". Connect SUZUKI scan tool to DLC. Push engine switch to change ignition mode of keyless push start system to "ON". Check DTC. Is there DTC(s) other than C1037, C1038 and C1057? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | DTC check for BCM Check DTC for BCM. Is any of DTC U0073, U0121 or U0126 detected? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 4. |
| 4 | Fuse check Check "ESP" fuse. Is it good condition? | Go to Step 5. | Replace fuse and check for short circuit to ground. |
| 5 | Steering angle sensor power supply circuit check Confirm that ignition mode of keyless push start system is in "OFF". Disconnect steering angle sensor connector. Disconnect "E09" connector. Check for proper connection "GRN/ORN" wire. If connection is OK, push engine switch to change ignition mode to "ON". Measure voltage between "GRN/ORN" wire and ground. Is it 10 - 14 V? | Go to Step 6. | "GRN/ORN" wire circuit open. |
| 6 | Steering angle sensor ground circuit check Push engine switch to change ignition mode to "ON". Measure resistance between "BLK" wire and ground. Is it less than 2ohms? | Go to Step 7. | "BLK" wire circuit open. |
| 7 | Steering angle sensor check Connect steering angle sensor connector. Check steering angle sensor. See STEERING ANGLE SENSOR ON-VEHICLE INSPECTION Is it in good condition? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Replace steering angle sensor and recheck DTC, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1038: Steering Angle Sensor Detect Rolling Counter Failure Steering angle sensor detects abnormal CAN data from ESP® control module. | CAN communication circuit Steering angle sensor ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is any DTC(s) detected other than C1038? | Go to APPLICABLE DTC TROUBLESHOOTING . | Replace steering angle sensor and recheck DTC, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . Substitute a known-good ESP® control module if DTC C1038 is still detected, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1039: Yaw Rate/G Sensor Assembly Internal Failure Yaw rate/G sensor assembly internal failure is detected. | ESP® control module |
| C1071: ESP® Control Module Internal Failure ESP® control module internal failure is detected. | |
| C1096: Yaw Rate/G Sensor Assembly Message Counter Error Invalid CAN data is received from Yaw rate/G sensor. |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1039, C1071 and C1096? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1040: ESP® Continuous Operation Stability control is active for more than specified time. | ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1040? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1041/C1045/C1051/C1055: Right-Front/Left-Front/Right-Rear/Left-Rear Inlet Solenoid C1042/C1046/C1052/C1056: Right-Front/Left-Front/Right-Rear/Left-Rear Outlet Solenoid C1043/C1044: Cut Solenoid No. 1/No. 2 Valve Circuit Correlation C1053/C1054: Low Pressure Solenoid No. 1/No. 2 Valve Circuit Correlation Solenoid valve circuit is opened, shorted to power, ground and/or each valve in ESP® control module. | ESP® control module power supply circuit ESP® control module ground circuit ESP® control module |
| C1063: Solenoid Valve Power Supply Driver Circuit Performance Solenoid valve relay output is ON (OFF), although its output is monitored OFF (ON) |
DTC DETECTING CONDITION CHART
Scheme 20
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | ESP® control module power supply and ground circuits check Check ESP® control module power supply and ground circuits, see ESP® CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT CHECK . Are they in good condition? | Substitute a known-good ESP® control module and recheck DTC, see ESP® Hydraulic Unit/Control Module Assembly Removal and Installation . | Repair ESP® control module power supply or ground circuits. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1047: Both-Front Wheel Speed Sensor or Encoder Signal Performance Yaw rate measured from both front wheel speed sensor does not match with estimated yaw rate. | Steering angle sensor Wheel speed sensor Wheel speed sensor circuit Wheel speed sensor encoder ESP® control module |
| C1048: Both-Rear Wheel Speed Sensor or Encoder Signal Performance Yaw rate measured from both rear wheel speed sensor does not match with estimated yaw rate. |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1047 or C1048? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | Steering angle sensor on-vehicle inspection Check steering angle sensor, see STEERING ANGLE SENSOR ON-VEHICLE INSPECTION . Is it in good condition? | Go to wheel speed sensor troubleshooting. Refer to DTC C1021/C1022/C1025/C1026 /C1031/C1032/C1033/C1035/C1036 | Replace wheel speed sensor and recheck DTC. Front wheel speed sensor: FRONT WHEEL SPEED SENSOR REMOVAL AND INSTALLATION Rear wheel speed sensor: REAR WHEEL SPEED SENSOR REMOVAL AND INSTALLATION |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1057: Power Supply Voltage ESP® control module power supply voltage is over 16.8 V. ESP® control module power supply voltage is between 7.8 V and 9.3 V. ESP® control module power supply voltage is under 7.7 V. | ESP® control module power supply circuit ESP® control module ground circuit Charging system ESP® control module |
DTC DETECTING CONDITION CHART
Scheme 21
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | ESP® control module power supply and ground circuits check Check ESP® control module power supply circuit and ground circuit, see ESP® CONTROL MODULE POWER SUPPLY AND GROUND CIRCUIT CHECK . Are they in good condition? | Go to Step 3. | Repair ESP® control module power supply or ground circuits. |
| 3 | ESP® control module power supply voltage check Measure battery voltage with engine running at 3000 rpm. Is voltage under 15 V? | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . | Check charging system. Refer to GENERATOR TEST |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1061: Pump Motor Circuit Performance Pump motor is stuck. Pump motor power supply is too low. | ESP® control module (pump motor) power supply circuit ESP® control module ground circuit ESP® control module |
DTC DETECTING CONDITION CHART
Scheme 22
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | ESP® control module power supply circuit check Confirm that ignition mode of keyless push start system is in "OFF". Disconnect "E09" connector. Check for proper connection to "E09-26" terminal. If connection is OK, measure voltage between "E09-26" terminal and ground. Is it 10 - 14 V? | Go to Step 3. | "WHT/BLU" circuit open. |
| 3 | ESP® control module ground circuit check Measure resistance between each of "E09-14" and "E09-38" terminals and ground. Is resistance less than 1 ohms? | Substitute a known-good ESP® control module recheck. | ESP® control module ground circuit open. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1074: G Sensor Calibration G sensor calibration is not completed. | Yaw rate/G sensor calibration is incomplete ESP® control module |
| C1075: Steering Angle Sensor Calibration Missing steering angle sensor calibration point data is detected. | Steering angle sensor Steering angle sensor calibration is incomplete ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1074 or C1075? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | Sensor calibration Calibrate all sensors, see SENSOR CALIBRATION OF ESP® . Is sensor calibration completed? | Go to Step 4. | Replace steering angle sensor. Refer to STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . |
| 4 | Clear all DTC(s) and check DTC. Is DTC C1074 and/or C1075 still detected? | DTC C1074: Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . DTC C1075: Replace steering angle sensor and recheck DTC, see STEERING ANGLE SENSOR REMOVAL AND INSTALLATION . | Calibration was incomplete. |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1084: ESP® Detects Message Counter Failure From EPS Invalid CAN data is received from P/S control module. (counter value) | P/S system P/S control module ESP® control module |
| C1085: ESP® Detects Check Sum Failure From EPS Invalid CAN data is received from P/S control module. (sum value) | |
| C1097: DTC concerning Power Steering Control Module DTC concerned with P/S is detected. |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1084, C1085 or C1097? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | DTC check for P/S system Check DTC for P/S control module. Is there DTC(s) other than C1084, C1085 or C1097? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good P/S control module and recheck DTC, see P/S CONTROL MODULE REMOVAL AND INSTALLATION . Substitute a known-good ESP® control module if DTC is still detected, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| C1090: ECM Detect Rolling Counter Failure from ESP® Control Module Invalid CAN data is received from ECM. (about engine torque control) C1091: CAN Invalid Date from ECM Invalid signal data from ECM is received. C1094: Torque Request Reject Status Invalid signal data of torque control from ECM is received. | CAN communication circuit ECM ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1090, C1091 or C1094? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | DTC check for ECM Check DTC for ECM. Is DTC U0073 or U0121 detected? | Go to DTC U0073 or DTC U0121 . | Substitute a known-good ESP® control module and recheck DTC, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| DTC C1092: CAN Invalid Data from TCM DTC concerned with TCM is detected. | CVT system TCM ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was "ESP® System Check" performed? | Go to Step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1092? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | DTC check for TCM Check DTC for TCM. Is any DTC(s) detected? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good TCM and recheck DTC. Substitute a known-good ESP® control module if DTC C1092 is still detected, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| DTC detecting condition | Trouble area |
|---|---|
| DTC C1093: 4WD Control Module Data in CAN Line Failure DTC concerned with 4WD is detected. | 4WD system 4WD control module ESP® control module |
DTC DETECTING CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Was ESP® System Check performed? | Go to step 2. | Go to ESP® SYSTEM CHECK . |
| 2 | DTC check Perform DTC CHECK . Is there DTC(s) other than C1093? | Go to APPLICABLE DTC TROUBLESHOOTING . | Go to Step 3. |
| 3 | DTC check for 4WD system Check DTC for 4WD control module. Is any DTC(s) detected? | Go to APPLICABLE DTC TROUBLESHOOTING . | Substitute a known-good 4WD control module and recheck DTC. Substitute a known-good ESP® control module if DTC C1093 is still detected, see ESP® HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY REMOVAL AND INSTALLATION . |
DIAGNOSTICS PROCEDURE CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Fuse check Are "ABS MCT", "ABS SOL" fuse and "ESP" fuse in good condition? | Go to Step 2. | Replace fuse and check for short circuit to ground. |
| 2 | ESP® control module power supply circuit check Confirm that ignition mode of keyless push start system is in "OFF". Disconnect "E09" connector. Check for proper connection to "E09-1", "E09-8", "E09-14", "E09-26" and "E09- 38" terminals. If connections are OK, push engine switch to change ignition mode to ON. Measure voltage between "E09-8" terminal and ground. Is it 10 - 14 V? | Go to Step 3. | "GRN/ORN" circuit is open. |
| 3 | Pump motor and solenoid valve power supply circuit check Confirm that ignition mode of keyless push start system is in "OFF". Push engine switch to change ignition mode of keyless push start system to "ON". Measure voltage between each of "E09- 26" and "E-09-1" terminals and ground. Are they 10 - 14 V? | Go to Step 4. | "WHT/BLU" or "BLU/WHT" circuit is open. |
| 4 | ESP® control module assembly ground circuit Confirm that ignition mode of keyless push start system is in "OFF". Measure voltage between each of "E09- 14" and "E09-38" terminals and ground. Are they 0 V? | Go to Step 5. | "BLK/WHT" and/or "BLK" circuit is open. |
| 5 | ESP® control module ground circuit check Measure resistance between each of "E09-14" and "E09-38" terminals and ground. Is resistance less than 2 ohms? | ESP® control module power supply and ground circuits are in good condition. | Replace or repair circuit. |
DIAGNOSTICS PROCEDURE CHART
ESP® Hydraulic Unit/Control Module Assembly On-Vehicle Inspection
| CAUTION | Never disassemble ESP® hydraulic unit/control module assembly, loosen blind plug or remove motor. Performing any of these prohibited services will spoil original performance of ESP® hydraulic unit/control module assembly. |
Check hydraulic unit for fluid leakage.
Replace ESP® hydraulic unit/control module assembly if defective.
Front and Rear Wheel Speed Sensor On-Vehicle Inspection
| CAUTION | Incorrect voltage or an improper connection will damage the wheel speed sensor. Confirm that the power supply voltage and test connections are both correct. |
Scheme 23
Scheme 24
- Disconnect negative (-) cable at battery.
- Hoist vehicle a little.
- Disconnect wheel speed sensor connector (1).
- Set up measuring devices as shown in the illustration.
- Measure voltage at both ends of resistance without wheel rotation. If check result is not as specified, check sensor, mating encoder and their installation conditions. Voltage at resistance (75ohms) without wheel rotation . 443 - 630 mV
- Measure voltage at both ends of resistance with wheel rotation and check high (1) and low (2) voltages are in specification. Confirm that waveform is not disordered. Voltage at resistance (75ohms) with wheel rotating . LO voltage 443 - 630 mV HI voltage 885 - 1260 mV
Front and Rear Wheel Speed Sensor Inspection
Reference: FRONT WHEEL SPEED SENSOR REMOVAL AND INSTALLATION
Reference: REAR WHEEL SPEED SENSOR REMOVAL AND INSTALLATION
Replace or clean the wheel speed sensor if detective area of wheel speed sensor is damaged or covered with iron powder.
Front and Rear Wheel Speed Sensor Encoder Inspection
Reference: FRONT WHEEL SPEED SENSOR ENCODER REMOVAL AND INSTALLATION
Reference: REAR WHEEL SPEED SENSOR ENCODER REMOVAL AND INSTALLATION
Note. Wheel speed sensor encoder is united to wheel hub assembly. Replace wheel hub assembly if wheel speed sensor encoder needs to be replaced.
Check front and rear wheel speed sensor encoders for crack, damage, or deformation.
Replace wheel speed sensor encoder if defective.
Scheme 25
Scheme 26
- Calibrate sensors, see «SENSOR CALIBRATION OF ESP®»(ref-585576-S22755601972013111200000) .
- Check basic brake system other than ESP®, see «PRECAUTIONS FOR BRAKE SERVICE»(ref-585572-S08938244012013111200000) .
- Confirm that ignition mode of keyless push start system is in "OFF".
- Connect SUZUKI scan tool to DLC (1). Special Tool SUZUKI scan tool (SUZUKI-SDT)
- Push engine switch to change ignition mode of keyless push start system to "ON" and select menu "DATA LIST" mode of SUZUKI scan tool. Refer to scan tool operator's manual for further details.
- Check "Master Cyl Press" under "DATA LIST" of SUZUKI scan tool with brake pedal released. If check result is not as specified, replace ESP® hydraulic unit/control module assembly. Master cylinder pressure specification Brake pedal released: 0 ± 0.8 MPa (0 ± 8.2 kgf/cm 2 , 0 ± 116 psi)
- Hoist vehicle and remove left-side front wheel.
- Remove bleeder plug from left-side front caliper and install special tool to left-side front caliper. Special Tool 09956-02311
- When depressing brake pedal up to special tool gauge reading 10 MPa (102 kgf/cm 2 , 1450 psi), check "Master Cyl Press" under "DATA LIST" of SUZUKI scan tool. If check result displayed on SUZUKI scan tool is not as specified, replace ESP® hydraulic unit/control module assembly. Master cylinder pressure specification Brake pedal depressed 10 MPa (102.0 kgf/cm 2 , 1450 psi): 10 ± 1.2 MPa (102 ± 12.2 kgf/cm 2 , 1450 ± 174 psi)
- After completing the check, push engine switch to change ignition mode of keyless push start system to "OFF" and disconnect SUZUKI scan tool from DLC.
- Remove special tool, tighten bleeder plug and bleed air from brake system. Refer to «AIR BLEEDING OF BRAKE SYSTEM»(ref-585572-S29000375982013111200000) Tightening torque Bleeder plug: 8.0 N.m (0.82 kg-m, 6.0 lbf-ft)
- Check brake fluid level in master cylinder reservoir.
Scheme 27
Scheme 28
- Calibrate yaw rate/G sensor assembly, see «SENSOR CALIBRATION OF ESP®»(ref-585576-S22755601972013111200000)
- Park vehicle on level surface with parking brake applied and fix wheels with chokes.
- Connect SUZUKI scan tool to DLC (1) with ignition OFF. Special Tool SUZUKI scan tool (SUZUKI-SDT)
- Push engine switch to change ignition mode of keyless push start system to "ON" and select menu "DATA LIST" mode of SUZUKI scan tool. Refer to scan tool operator's manual for further details.
- Check "G Sensor (Lateral)" under "DATA LIST" of SUZUKI scan tool in the following vehicle conditions. Level condition Right-up condition Left-up condition ESP® hydraulic unit/control module if check result is not as specified. Lateral G specification LATERAL G SPECIFICATION CHART Vehicle condition G Sensor (lateral) Level condition 0 ± 0.1 G Right-up condition 0.1 ± 0.1 G Left-up condition -0.1 ± 0.1 G
Scheme 29
Scheme 30
- Calibrate yaw rate/G sensor, see «SENSOR CALIBRATION OF ESP®»(ref-585576-S22755601972013111200000) .
- Connect SUZUKI scan tool to DLC (1) with ignition mode of keyless push start system in "OFF". Special Tool SUZUKI scan tool (SUZUKI-SDT)
- Push engine switch to change ignition mode of keyless push start system to "ON" and select menu "DATA LIST" mode of SUZUKI scan tool. Refer to scan tool operator's manual for further details.
- Check "Yaw Rate Sensor" under "DATA LIST" of SUZUKI scan tool in the following vehicle conditions. Parking condition Drive vehicle in right turning condition with steering wheel fully turned Drive vehicle in left turning condition with steering wheel fully turned Replace ESP® hydraulic unit/control module, if check result is not as specified. Yaw rate specification YAW RATE SPECIFICATION CHART Vehicle condition Yaw rate Parking 0 ± 4 deg/s Right turning 38.9 ± 4 deg/s Left turning -37.2 ± 4 deg/s NOTE: Drive vehicle on level ground and at 10 km/h (6 mile/h). Minimum turning radius is 5.5 m (18.0 ft).
Steering Angle Sensor On-Vehicle Inspection
| CAUTION | Before each inspection, confirm steering angle sensor calibration is completed. If calibration is incomplete, calibrate sensor, see SENSOR CALIBRATION OF ESP® . |
Scheme 31
Scheme 32
- Connect SUZUKI scan tool to DLC (1) with ignition mode of keyless push start system in "OFF". Special Tool SUZUKI scan tool (SUZUKI-SDT)
- Push engine switch to change ignition mode of keyless push start system to "ON" and select menu "DATA LIST" mode of SUZUKI scan tool. Refer to scan tool operator's manual for further details.
- Check "Steering Angle Sen" under "DATA LIST" of SUZUKI scan tool in the following steering wheel conditions. Front wheels in straight-ahead position Rotate steering wheel once clockwise from straight-ahead position Rotate steering wheel once counterclockwise from straight-ahead position Replace steering angle sensor, if check result is not as specified. Steering angle specification STEERING ANGLE SPECIFICATION CHART Vehicle condition Steering angle Front wheels in straight-ahead position 0 ± 3° Rotate steering wheel once clockwise 360 ± 3° Rotate steering wheel once counterclockwise -360 ± 3°
Steering Angle Sensor Inspection
Reference: STEERING ANGLE SENSOR REMOVAL AND INSTALLATION
- Check sensor for dents, cracks or deformation.
- Check sensor connector (sensor side and harness side) and sensor connector lock mechanism for damage.
- Check connector terminals for bend, corrosion or rust.
Replace steering angle sensor (1) if defective.
Scheme 33
Scheme 34
- Remove instrument panel switch bezel, see «INSTRUMENT PANEL DISASSEMBLY AND REASSEMBLY»(ref-585593-S08785224352013111200000) .
- Disconnect ESP® OFF and parking sensor OFF switch connector.
- Remove ESP® OFF and parking sensor OFF switch (1) from instrument panel switch bezel.
ESP® OFF Switch Inspection
Reference: ESP® OFF SWITCH REMOVAL AND INSTALLATION
Check ESP® OFF & parking sensor OFF switch for continuity between terminals at each switch position. If check result is not as specified, replace ESP® OFF and parking sensor OFF switch.
Note. Select diode test and capacitance measurements position and measure connection when measuring between terminal 2 - 8 or 4 - 5.
