Precautions for Diagnosis
If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit (control unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neutral position of steering angle sensor before driving. Refer to ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION .
How to Erase "DTC Check" Results
- After erasing DTC memory, start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make sure that the ABS warning lamp, SLIP indicator lamp and brake warning lamp turn OFF. CAUTION: If memory cannot be erased, perform applicable diagnosis. NOTE: When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp, SLIP indicator lamp and brake warning lamp will not turn OFF even when the system is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1 minute. Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid level switch operation (when brake fluid is insufficient).
Active Test Mode
| CAUTION | Do not perform active test while driving vehicle. Make sure to completely bleed air from brake system. The active test cannot be performed with the ABS warning lamp, SLIP indicator lamp or brake warning lamp on. ABS warning lamp, SLIP indicator lamp and brake warning lamp are on during active test. |
Note. When active test is performed while depressing the pedal, the pedal depression amount will change. This is normal. (Only solenoid valve and ABS motor.) "TEST IS STOPPED" is displayed 10 seconds after operation start. After "TEST IS STOPPED" is displayed, to perform test again, touch BACK.
VALUES ON THE DIAGNOSIS TOOL
| CAUTION | The display shows the control unit calculation data, so a normal value might be displayed even in the event the output circuit (harness) is open or short-circuited. |
DTC No. Index: ABS Actuator and Electric Unit (Control Unit)
| DTC | Items (SDT screen terms) | Reference |
|---|---|---|
| C1101 | RR RH SENSOR-1 | [ C1101, C1102, C1103, C1104 WHEEL SENSOR-1 ] |
| C1102 | RR LH SENSOR-1 | |
| C1103 | FR RH SENSOR-1 | |
| C1104 | FR LH SENSOR-1 | |
| C1105 | RR RH SENSOR-2 | [ C1105, C1106, C1107, C1108 WHEEL SENSOR-2 ] |
| C1106 | RR LH SENSOR-2 | |
| C1107 | FR RH SENSOR-2 | |
| C1108 | FR LH SENSOR-2 | |
| C1109 | BATTERY VOLTAGE [ABNORMAL] | [ C1109 POWER AND GROUND SYSTEM ] |
| C1110 | CONTROLLER FAILURE | [ C1110, C1113, C1160, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ] |
| C1111 | PUMP MOTOR | [ C1111 ABS MOTOR, MOTOR RELAY SYSTEM ] |
| C1113 | G-SENSOR | [ C1110, C1113, C1160, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ] |
| C1115 | ABS SENSOR [ABNORMAL SIGNAL] | [ C1115 WHEEL SENSOR ] |
| C1116 | STOP LAMP SW | [ C1116 STOP LAMP SWITCH ] |
| C1120 | FR LH IN ABS SOL | [ C1120, C1122, C1124, C1126 IN ABS SOL ] |
| C1121 | FR LH OUT ABS SOL | [ C1121, C1123, C1125, C1127 OUT ABS SOL ] |
| C1122 | FR RH IN ABS SOL | [ C1120, C1122, C1124, C1126 IN ABS SOL ] |
| C1123 | FR RH OUT ABS SOL | [ C1121, C1123, C1125, C1127 OUT ABS SOL ] |
| C1124 | RR LH IN ABS SOL | [ C1120, C1122, C1124, C1126 IN ABS SOL ] |
| C1125 | RR LH OUT ABS SOL | [ C1121, C1123, C1125, C1127 OUT ABS SOL ] |
| C1126 | RR RH IN ABS SOL | [ C1120, C1122, C1124, C1126 IN ABS SOL ] |
| C1127 | RR RH OUT ABS SOL | [ C1121, C1123, C1125, C1127 OUT ABS SOL ] |
| C1130 | ENGINE SIGNAL 1 | [ C1130, C1131, C1136 ENGINE SIGNAL ] |
| C1131 | ENGINE SIGNAL 2 | |
| C1132 | ENGINE SIGNAL 3 | |
| C1133 | ENGINE SIGNAL 4 | |
| C1136 | ENGINE SIGNAL 6 | |
| C1140 | ACTUATOR RLY | [ C1140 ACTUATOR RLY ] |
| C1142 | PRESS SEN CIRCUIT | [ C1142 PRESS SENSOR ] |
| C1155 | BR FLUID LEVEL LOW | [ C1155 BRAKE FLUID LEVEL SWITCH ] |
| C1156 | ST ANG SEN COM CIR | C1156 ST ANG SEN COM Cir |
| C1160 | DECEL G SEN SET | [ C1110, C1113, C1160, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ] |
| C1163 | ST ANGL SEN SAFE | C1163 ST Angle SEN Safe |
| C1164 | CV1 | [ C1164, C1165, C1166, C1167 CV/SV SYSTEM ] |
| C1165 | CV2 | |
| C1166 | SV1 | |
| C1167 | SV2 | |
| C1170 | VARIANT CODING | [ C1110, C1113, C1160, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ] |
| C1187 | ABS DIFLOCK CONTROLLER NG | [ C1187 DIFFERENTIAL LOCK CONTROL UNIT ] |
| U1000 | CAN COMM CIRCUIT | [ U1000 CAN COMM CIRCUIT ] |
DTC ITEM CHART
DTC DETECTION LOGIC
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1101 | RR RH SENSOR-1 | Circuit of rear RH wheel sensor is open. Or when the sensor power voltage is outside the standard. | Harness or connector Wheel sensor ABS actuator and electric unit (control unit) |
| C1102 | RR LH SENSOR-1 | Circuit of rear LH wheel sensor is open. Or when the sensor power voltage is outside the standard. | |
| C1103 | FR RH SENSOR-1 | Circuit of front RH wheel sensor is open. Or when the sensor power voltage is outside the standard. | |
| C1104 | FR LH SENSOR-1 | Circuit of front LH wheel sensor is open. Or when the sensor power voltage is outside the standard. |
DTC DETECTION CONDITION CHART
DTC CONFIRMATION PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1101, C1102, C1103, C1104 WHEEL SENSOR-1 ]. | Inspection End |
DIAGNOSIS PROCEDURE
Diagnosis Procedure
| CAUTION | Do not check between wheel sensor terminals. |
DIAGNOSIS PROCEDURE Step Action YES NO 1 CONNECTOR INSPECTION Disconnect the ABS actuator and electric unit (control unit) connector and wheel sensor of malfunctioning code. Check the terminals for deformation, disconnection, looseness or damage. Is the inspection result normal? GO TO 2 Repair or replace as necessary. 2 CHECK WHEEL SENSOR OUTPUT SIGNAL Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter. Turn on the ABS active wheel sensor tester power switch. NOTE: The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal. NOTE: If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest. Does the ABS active wheel sensor tester detect a signal? GO TO 3 Replace the wheel sensor. Refer to [ WHEEL SENSOR: REMOVAL AND INSTALLATION ]. 3 CHECK TIRES Check for inflation pressure, wear and size of each tire. Are tire pressure and size correct and is tire wear within specifications? GO TO 4 Adjust tire pressure or replace tire (s). 4 CHECK WHEEL BEARINGS Check wheel bearing axial end play. Refer to [ WHEEL HUB: ON-VEHICLE INSPECTION AND SERVICE ] (front), [ REAR AXLE BEARING: ON-VEHICLE SERVICE ] (C200 rear axle), or [ REAR AXLE BEARING: ON-VEHICLE SERVICE ] (M226 rear axle). Is the inspection result normal? GO TO 5 Repair or replace as necessary. Refer to [ WHEEL HUB: REMOVAL AND INSTALLATION ] (front), [ AXLE BEARING: REMOVAL AND INSTALLATION ] (C200 rear axle), or [ AXLE BEARING: REMOVAL AND INSTALLATION ] (M226 rear axle). 5 CHECK WIRING HARNESS FOR SHORT CIRCUIT Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor connector of malfunction code No. 2. Check continuity between wheel sensor harness connector terminals and ground. Continuity should not exist. Is the inspection result normal? GO TO 6 Repair the circuit. 6 CHECK WIRING HARNESS FOR OPEN CIRCUIT Check continuity between ABS actuator and electric unit (control unit) harness connector and the malfunctioning wheel sensor harness connector. Is the inspection result normal? Replace the ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. Repair the circuit
Scheme 92
Scheme 93
Component Inspection
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK DATA LIST On "Data list", select "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR", and "RR RH SENSOR", and check the vehicle speed. Is the inspection result normal? | Inspection End | Go to diagnosis procedure. Refer to [ C1101, C1102, C1103, C1104 WHEEL SENSOR-1 ]. |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1105 | RR RH SENSOR-2 | When the circuit in the rear RH wheel sensor is short-circuited. Or when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. | Harness or connector Wheel sensor ABS actuator and electric unit |
| C1106 | RR LH SENSOR-2 | When the circuit in the rear LH wheel sensor is short-circuited. Or (control unit) when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. | |
| C1107 | FR RH SENSOR-2 | When the circuit in the front RH wheel sensor is short-circuited. Or when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. | |
| C1108 | FR LH SENSOR-2 | When the circuit in the front LH wheel sensor is short-circuited. Or when the distance between the wheel sensor and sensor rotor is too large and the sensor pulse cannot be recognized by the control unit. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1105, C1106, C1107, C1108 WHEEL SENSOR-2 ]. | Inspection End |
DIAGNOSIS PROCEDURE
Refer to "Diagnosis Procedure" in C1101, C1102, C1103, C1104 Wheel Sensor-1
Refer to "Component Inspection" in C1101, C1102, C1103, C1104 Wheel Sensor-1
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1109 | BATTERY VOLTAGE [ABNORMAL] | When the ABS actuator and electric unit (control unit) power supply voltage is lower than normal. | Harness or connector ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1109 POWER AND GROUND SYSTEM ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK CONNECTOR Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal. Reconnect connectors and then perform "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is any item indicated on "DTC check" display? GO TO 2 Poor connection of connector terminal. Repair or replace connector. 2 CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT AND GROUND CIRCUIT Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Turn ignition switch ON or OFF and check voltage between ABS actuator and electric unit (control unit) harness connector terminal and ground. 4. Turn ignition switch OFF. 5. Check continuity between ABS actuator and electric unit (control unit) harness connector terminals and ground. Is the inspection result normal? Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunctioning parts. Repair or replace malfunctioning components
Scheme 94
Scheme 95
Scheme 96
Scheme 97
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1110 | CONTROLLER FAILURE | When there is an internal malfunction in the ABS actuator and electric unit (control unit). | ABS actuator and electric unit (control |
| C1113 | G-SENSOR | Longitudinal G-sensor is malfunctioning, or unit) signal line of longitudinal G-sensor is open or shorted. | |
| C1160 | DECEL G SEN SET | ABS decel sensor adjustment is incomplete. | |
| C1170 | VARIANT CODING | In a case where VARIANT CODING is different. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1110, C1113, C1160, C1170 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) ]. | Inspection End |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | REPLACE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) | Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1111 | PUMP MOTOR | During the actuator motor operating with ON, when the actuator motor turns OFF, or when the control line for actuator motor relay is open. | Harness or connector ABS actuator and electric unit (control unit) |
| During the actuator motor operating with OFF, when the actuator motor turns ON, or when the control line for relay is shorted to ground. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1111 ABS MOTOR, MOTOR RELAY SYSTEM ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK CONNECTOR Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Check terminal for deformation, disconnect, looseness, and so on. If any malfunction is found, repair or replace terminal. Reconnect connectors and then perform "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is any item indicated on "DTC check" display? GO TO 2 Poor connection of connector terminal. Repair or replace connector. 2 CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT Turn ignition switch OFF. 2. Disconnect ABS actuator and electric unit (control unit) connector. 3. Check voltage between the ABS actuator and electric unit (control unit) harness connector terminal and ground. Is the inspection result normal? GO TO 3 Repair or replace malfunctioning components. 3 CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT Check continuity between ABS actuator and electric unit (control unit) harness connector terminals and ground. Is the inspection result normal? Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. Repair or replace malfunctioning components
Scheme 98
Scheme 99
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK ACTIVE TEST On "Active test", select "ABS MOTOR". Touch On and Off on screen. Make sure motor relay and actuator relay operates as shown in table below. Is the inspection result normal? Inspection End Go to diagnosis procedure. Refer to [ C1111 ABS MOTOR, MOTOR RELAY SYSTEM ]
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1113 | G-SENSOR | Longitudinal G-sensor is malfunctioning, or signal line of longitudinal G-sensor is open or shorted. | Harness or connector Yaw rate/side/decel G sensor ABS actuator and electric unit (control unit) |
| C1145 | YAW RATE SENSOR | Yaw rate sensor is malfunctioning, or the yaw rate sensor signal line is open or shorted. | |
| C1146 | SIDE G-SEN CIRCUIT | Side G sensor is malfunctioning, or circuit of side G sensor is open or shorted. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1113, C1145, C1146 Yaw Rate/Side/Decel G Sensor ]. | Inspection End |
DIAGNOSIS PROCEDURE
| CAUTION | Sudden turns (such as spin turns, acceleration turns), drifting, etc. when VDC function is OFF may cause the yaw rate/side/decel G sensor system to indicate a malfunction. This is not a malfunction if normal operation can be resumed after restarting the engine. If vehicle is on turn table at entrance to parking garage, or on other moving surface, VDC OFF indicator lamp may illuminate and SDT "DTC check" may indicate yaw rate sensor system malfunction. However, in this case there is no malfunction in yaw rate sensor system. Take vehicle off of turn table or other moving surface, and start engine. Results will return to normal. |
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CONNECTOR INSPECTION Disconnect the ABS actuator and electric unit (control unit) connector and wheel sensor of malfunctioning code. Check the terminals for deformation, disconnection, looseness or damage. Is the inspection result normal? | GO TO 2 | Repair or replace as necessary. |
| 2 | YAW RATE/SIDE/DECEL G SENSOR HARNESS INSPECTION Check continuity between the ABS actuator and electric unit (control unit) connector E127 (A) terminals 18, 19, 22, 29 and the yaw rate/side/decel G sensor connector B73 (B) terminals 2, 1, 3, 5. Is the inspection result normal? | GO TO 3 | Repair or replace as necessary. |
| 3 | YAW RATE/SIDE/DECEL G SENSOR INSPECTION Perform the yaw rate/side/decel G sensor component inspection. Refer to C1113, C1145, C1146 Yaw Rate/Side/Decel G Sensor Is the inspection result normal? | Replace the ABS actuator and electric unit (control unit). Refer to Actuator and Electric Unit (Assembly): Removal and Installation | Replace the yaw rate/side/decel G sensor. Refer to G SENSOR: REMOVAL AND INSTALLATION |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK DATA LIST Select "YAW RATE SEN", "SIDE G-SENSOR", "DECEL G-SEN" in "Data list" and check yaw rate/side/decel G sensor signal. Is the inspection result normal? | Inspection End | Go to diagnosis procedure. Refer to [ C1113, C1145, C1146 Yaw Rate/Side/Decel G Sensor ]. |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1115 | ABS SENSOR [ABNORMAL SIGNAL] | When wheel sensor input signal is malfunctioning. | Harness or connector Wheel sensor ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1115 WHEEL SENSOR ]. | Inspection End |
DIAGNOSIS PROCEDURE
Refer to "Diagnosis Procedure" in C1101, C1102, C1103, C1104 Wheel Sensor-1
Refer to "Component Inspection" in C1101, C1102, C1103, C1104 Wheel Sensor-1
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1116 | STOP LAMP SW | When stop lamp switch circuit is open. | Harness or connector Stop lamp switch ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1116 STOP LAMP SWITCH ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CONNECTOR INSPECTION Disconnect the ABS actuator and electric unit (control unit) connector and stop lamp switch connector. Check the terminals for deformation, disconnection, looseness or damage. Is the inspection result normal? GO TO 2 Repair or replace as necessary. 2 STOP LAMP SWITCH INSPECTION Connect the stop lamp switch connector. 2. Check the voltage between the ABS actuator and electric unit (control unit) connector E125 terminal 41 and body ground. Brake pedal depressed: Battery voltage (approx. 12V) Brake pedal not depressed: Approx. 0V Is the inspection result normal? Perform "DTC check" again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. GO TO 3 3 STOP LAMP SWITCH CIRCUIT INSPECTION Disconnect the stop lamp switch connector. 2. Check the continuity between the ABS actuator and electric unit (control unit) connector E125 (A) terminal 41 and stop lamp switch connector E39 (B) terminal 2 (with A/T) or E38 (C) terminal 2 (with M/T). Continuity should exist. Is the inspection result normal? Refer to [ DIAGNOSIS AND REPAIR WORKFLOW ]. Repair or replace malfunctioning components
Scheme 100
Scheme 101
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1120 | FR LH IN ABS SOL | When the control unit detects a malfunction in the front LH inlet solenoid circuit. | ABS actuator and electric unit (control unit) |
| C1122 | FR RH IN ABS SOL | When the control unit detects a malfunction in the front RH inlet solenoid circuit. | |
| C1124 | RR LH IN ABS SOL | When the control unit detects a malfunction in the rear LH inlet solenoid circuit. | |
| C1126 | RR RH IN ABS SOL | When the control unit detects a malfunction in the rear RH inlet solenoid circuit. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1120, C1122, C1124, C1126 IN ABS SOL ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK CONNECTOR Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal. Reconnect connectors and then perform "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is any item indicated on "DTC check" display? GO TO 2 Poor connection of connector terminal. Repair or replace connector. 2 CHECK SOLENOID, SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT Turn ignition switch OFF. 2. Disconnect ABS actuator and electric unit (control unit) connector. 3. Check voltage between ABS actuator and electric unit (control unit) harness connector terminal and ground. Is the inspection result normal? GO TO 3 Repair or replace malfunctioning components. 3 CHECK SOLENOID, SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT Check continuity between ABS actuator and electric unit (control unit) harness connector terminals and ground. Is the inspection result normal? Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. Repair or replace malfunctioning components
Scheme 102
Scheme 103
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK ACTIVE TEST Select each test menu item on "Active test". On the display, touch "Up", "Keep", and "Down", and check that the system operates as shown in the table below. *: ON for 1 to 2 seconds after the touch, and then OFF Is the inspection result normal? Inspection End Go to diagnosis procedure. Refer to [ C1120, C1122, C1124, C1126 IN ABS SOL ]
Scheme 104
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1121 | FR LH OUT ABS SOL | When the control unit detects a malfunction in the front LH outlet solenoid circuit. | ABS actuator and electric unit (control unit) |
| C1123 | FR RH OUT ABS SOL | When the control unit detects a malfunction in the front RH outlet solenoid circuit. | |
| C1125 | RR LH OUT ABS SOL | When the control unit detects a malfunction in the rear LH outlet solenoid circuit. | |
| C1127 | RR RH OUT ABS SOL | When the control unit detects a malfunction in the rear RH outlet solenoid circuit. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1121, C1123, C1125, C1127 OUT ABS SOL ]. | Inspection End |
DIAGNOSIS PROCEDURE
Refer to "Diagnosis Procedure" in C1121, C1123, C1125, C1127 OUT ABS SOL
Refer to "Component Inspection" in C1121, C1123, C1125, C1127 OUT ABS SOL
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1130 | ENGINE SIGNAL 1 | Based on the signal from ECM, ABS actuator and electric unit (control unit) judges that engine fuel cut system is malfunctioning. | Harness or connector ABS actuator and electric unit (control unit) ECM CAN communication line |
| C1131 | ENGINE SIGNAL 2 | ||
| C1132 | ENGINE SIGNAL 3 | ||
| C1133 | ENGINE SIGNAL 4 | ||
| C1136 | ENGINE SIGNAL 6 |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1130, C1131, C1136 ENGINE SIGNAL ]. | Inspection End |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK ENGINE SYSTEM Perform ECM "DTC check". Repair or replace items indicated, then perform ECM "DTC check" again. Refer to [ SDT FUNCTION (ENGINE / POWERTRAIN) ] Perform ABS actuator and electric unit (control unit) "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is any item indicated on "DTC check" display? | Repair or replace the affected part. | Inspection End |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1140 | ACTUATOR RLY | ABS actuator relay or circuit malfunction. | Harness or connector ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1140 ACTUATOR RLY ]. | Inspection End |
DIAGNOSIS PROCEDURE
Refer to "Diagnosis Procedure" in C1120, C1122, C1124, C1126 in ABS SOL
Refer to "Component Inspection" in C1111 ABS Motor, Motor Relay System
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1142 | PRESS SEN CIRCUIT | Pressure sensor signal line is open or shorted, or pressure sensor is malfunctioning. | Harness or connector Pressure sensor ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1142 PRESS SENSOR ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect the front pressure sensor connector and ABS actuator and electric unit (control unit) connector and inspect the terminals for deformation, disconnection, looseness, or damage. Is the inspection result normal? GO TO 2 Repair connector. 2 FRONT PRESSURE SENSOR CIRCUIT INSPECTION Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125 (A) terminals 18, 19, 20 and front pressure sensor harness connector E31 (B) terminals 3, 1, 2. 2. Measure the continuity between the ABS actuator and electric unit (control unit) harness connector E125 (A) terminals 18, 19, 20 and body ground. Is the inspection result normal? GO TO 3 Repair or replace harness or connector. 3 FRONT PRESSURE SENSOR INSPECTION Reconnect the front pressure sensor and ABS actuator and electric unit (control unit) connectors. Use "Data list" to check if the status of "PRESS SENSOR" is normal. Is the inspection result normal? Inspection End. Replace the front pressure sensor
Scheme 105
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Scheme 107
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK DATA LIST On "Data list", select "PRESS SENSOR" and check the brake fluid pressure. Is the inspection result normal? | Inspection End | Go to diagnosis procedure. Refer to [ C1142 PRESS SENSOR ]. |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1143 | ST ANG SEN CIRCUIT | Neutral position of steering angle sensor is dislocated, or the steering angle sensor is malfunctioning. | Harness or connector Steering angle sensor ABS actuator and electric unit (control unit) |
| C1144 | ST ANG SEN SIGNAL | Neutral position of steering angle sensor is not finished. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1143, C1144 Steering Angle Sensor ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CONNECTOR INSPECTION Turn the ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Disconnect steering angle sensor connector. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals. Reconnect connectors and then perform "DTC check". Refer to SDT FUNCTION (ABS / ESP®) Is any item indicated on "DTC check" display? GO TO 2 Poor connection of connector terminals. Repair or replace connector. 2 CHECK STEERING ANGLE SENSOR HARNESS Turn ignition switch OFF. Disconnect steering angle sensor connector. Check continuity between steering angle sensor connector M47 terminal 1 and ground. Turn ignition switch ON. Check voltage between steering angle sensor connector M47 terminal 2 and ground. Is the inspection result normal? GO TO 3 Repair or replace harness or connector. 3 CHECK DATA LIST Perform the steering angle sensor component inspection. Refer to C1143, C1144 Steering Angle Sensor Is the inspection result normal? Replace ABS actuator and electric unit (control unit). Refer to Actuator and Electric Unit (Assembly): Removal and Installation Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to STEERING ANGLE SENSOR: REMOVAL AND INSTALLATION
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK DATA LIST Select "STR ANGLE SIG" in "Data list" and check steering angle sensor signal. Is the inspection result normal? | Inspection End | Go to diagnosis procedure. Refer to [ C1143, C1144 Steering Angle Sensor ]. |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1155 | BR FLUID LEVEL LOW | Brake fluid level is low or communication line between the ABS actuator and electric unit (control unit) and brake fluid level switch is open or shorted. | Harness or connector Brake fluid level switch Brake fluid level |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1155 BRAKE FLUID LEVEL SWITCH ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CONNECTOR INSPECTION Disconnect ABS actuator and electric unit (control unit) connector and brake fluid level switch connector. Check the terminals for deformation, disconnection, looseness or damage. Is the inspection result normal? GO TO 2 Repair or replace as necessary. 2 CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) Check continuity between ABS actuator and electric unit (control unit) harness connector E127 (A) terminal 28 and brake fluid level switch harness connector E21 (B) terminal 1. 2. Check continuity between ABS actuator and electric unit (control unit) harness connector E127 (A) terminal 28 and ground. Is the inspection result normal? GO TO 3 Repair or replace malfunctioning components. 3 CHECK BRAKE FLUID LEVEL SWITCH GROUND Check continuity between brake fluid level switch harness connector E21 terminal 2 and ground. Is the inspection result normal? GO TO 4 Repair or replace malfunctioning components. 4 CHECK BRAKE FLUID LEVEL SWITCH Check continuity between brake fluid level switch terminals. Is the inspection result normal? Perform "DTC check" again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. Replace brake fluid level switch
Scheme 108
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK BRAKE FLUID LEVEL SWITCH Turn ignition switch OFF. Disconnect brake fluid level switch connector. Check continuity between brake fluid level switch terminals. Is the inspection result normal? Inspection End Replace brake fluid level switch
Scheme 109
Scheme 110
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1156 | ST ANG SEN COM CIR | When steering angle sensor is not transmitting CAN communication signal to the ABS actuator and electric unit (control unit). | Harness or connector CAN communication line Steering angle sensor ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to C1156 ST ANG SEN COM Cir . | Inspection End |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect ABS actuator and electric unit (control unit) connector. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals. Reconnect connector and perform "DTC check". Refer to SDT FUNCTION (ABS / ESP®) "DTC check" results, CAN COMM CIRCUIT, ST ANG SEN COM CIR Is above displayed on "DTC check" display? | Refer to LAN SYSTEM: BASIC INSPECTION | Inspection End |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1160 | DECEL G SEN SET | ABS decel G sensor adjustment is incomplete. | Decel G sensor calibration Yaw rate/side/decel G sensor ABS actuator and electric unit (control unit) |
DTC DETECTED CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to C1160 DECEL G SEN SET . | Inspection End |
DTC CONFIRMATION PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Do "DTC check" results indicate anything other than shown above? | Perform repair or replacement for the item indicated. | Perform calibration of decel G sensor. Refer to CALIBRATION OF DECEL G SENSOR . GO TO 2 |
| 2 | PERFORM DTC CHECK AGAIN Turn the ignition switch to OFF and then to ON and erase "DTC check" results. Perform ABS actuator and electric unit "DTC check" again. Are any "DTC check" results displayed? | Replace yaw rate/side/decel G sensor. Refer to G SENSOR: REMOVAL AND INSTALLATION . | Inspection End |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1163 | ST ANGL SEN SAFE | When steering angle sensor is in safe mode. | Adjust steering angle sensor neutral position |
DTC DETECTED CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to C1163 ST ANGLE SEN SAFE . | Inspection End |
DTC CONFIRMATION PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION Adjust steering angle sensor neutral position. Refer to ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION . | GO TO 2 | |
| 2 | INDICATOR LAMP CHECK Check that VDC OFF indicator lamp is off. Is VDC OFF indicator lamp off? | Inspection End | Perform ABS actuator and electric unit (control unit) "DTC check". Refer to SDT FUNCTION (ABS / ESP®) . |
DIAGNOSIS PROCEDURE
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1164 | CV1 | Switch-over solenoid valve (CV1) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground. | Harness or connector ABS actuator and electric unit (control unit) |
| C1165 | CV2 | Switch-over solenoid valve (CV2) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground. | |
| C1166 | SV1 | Switch-over solenoid valve (SV1) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground. | |
| C1167 | SV2 | Switch-over solenoid valve (SV2) on the primary side is open circuit or shorted, or the control line is open or shorted to the power supply or the ground. |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1164, C1165, C1166, C1167 CV/SV SYSTEM ]. | Inspection End |
DIAGNOSIS PROCEDURE
Refer to "Diagnosis Procedure" in C1120, C1122, C1124, C1126 in ABS SOL
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK ACTIVE TEST Select each test menu item on "Active test". On the display, touch "Up", "ACT UP", and "ACT KEEP", and check that the system operates as shown in the table below. *: ON for 1 to 2 seconds after the touch, and then OFF Is the inspection result normal? Inspection End Go to diagnosis procedure. Refer to [ C1164, C1165, C1166, C1167 CV/SV SYSTEM ]
Scheme 111
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| C1187 | ABS DIFLOCK CONTROLLER NG | Differential lock controller malfunction. | Harness or connector CAN communication line Differential lock control unit ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform "DTC check". Is above displayed on "DTC check" display? | Proceed to diagnosis procedure. Refer to [ C1187 DIFFERENTIAL LOCK CONTROL UNIT ]. | Inspection End |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK CONNECTOR Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit), check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal. Reconnect connector and perform "DTC check". Is above displayed on "DTC check" display? Refer to [ LAN SYSTEM: BASIC INSPECTION ] Inspection End
Scheme 112
| DTC | Display item | Malfunction detected condition | Possible cause |
|---|---|---|---|
| U1000 | CAN COMM CIRCUIT | When ABS actuator and electric unit (control unit) is not transmitting or receiving CAN communication signal for 2 seconds or more. | CAN communication line ABS actuator and electric unit (control unit) |
DTC DETECTION CONDITION CHART
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK CONNECTOR Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check the terminals for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or replace the terminal. Reconnect connector and perform "DTC check". Is "CAN COMM CIRCUIT" displayed in "DTC check" display items? | Print out "DTC check" results, and refer to [ LAN SYSTEM: BASIC INSPECTION ] | Connector terminal is loose, damaged, open, or shorted. |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is the inspection result normal? | GO TO 2 | Check items displayed by "DTC check". |
| 2 | CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to [ METER DIAGNOSIS DESCRIPTION ] Is the inspection result normal? | Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. | Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ] |
DIAGNOSIS PROCEDURE
DIAGNOSIS PROCEDURE Step Action YES NO 1 CHECK VDC OFF SWITCH Turn ignition switch OFF. 2. Disconnect VDC OFF switch connector. 3. Check continuity between VDC OFF switch terminals. Is the inspection result normal? GO TO 2 Replace VDC OFF switch. 2 CHECK VDC OFF SWITCH HARNESS Disconnect ABS actuator and electric unit (control unit) connector. 2. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 6 and VDC OFF switch connector M154 (B) terminal 1. 3. Check continuity between ABS actuator and electric unit (control unit) connector E127 (A) terminal 6 and ground. Is the inspection result normal? GO TO 3 Repair or replace harness. 3 CHECK VDC OFF SWITCH GROUND Check continuity between VDC OFF switch connector M154 and ground. Is the inspection result normal? GO TO 4 Repair or replace harness. 4 CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to METER DIAGNOSIS DESCRIPTION Is the inspection result normal? Replace ABS actuator and electric unit (control unit). Refer to Actuator and Electric Unit (Assembly): Removal and Installation . Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ]
Scheme 113
Scheme 114
Scheme 115
Scheme 116
Scheme 117
DIAGNOSIS PROCEDURES Step Action YES NO 1 CHECK VDC OFF SWITCH Turn ignition switch OFF. 2. Disconnect VDC OFF switch connector. 3. Check continuity between VDC OFF switch terminals. Is the inspection result normal? Inspection End Replace VDC OFF switch
Scheme 118
Scheme 119
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Refer to SDT FUNCTION (ABS / ESP®) . Is the inspection result normal? | GO TO 2 | Check items displayed by "DTC check". |
| 2 | CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to [ METER DIAGNOSIS DESCRIPTION ] Is the inspection result normal? | Replace ABS actuator and electric unit (control unit). Refer to ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION . | Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ] |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is the inspection result normal? | GO TO 2 | Check items displayed by "DTC check". |
| 2 | CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to [ METER DIAGNOSIS DESCRIPTION ] Is the inspection result normal? | Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. | Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ]. |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | CHECK VDC OFF SWITCH Check that the VDC OFF indicator lamp in the combination meter turns ON/OFF correctly when operating the VDC OFF switch. Is the inspection result normal? | GO TO 2 | Check VDC OFF switch. Refer to VDC OFF SWITCH CIRCUIT CHECK . |
| 2 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Refer to SDT FUNCTION (ABS / ESP®) . Is the inspection result normal? | GO TO 3 | Check items displayed by "DTC check". |
| 3 | CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to [ METER DIAGNOSIS DESCRIPTION ] Is the inspection result normal? | Replace ABS actuator and electric unit (control unit). Refer to Actuator and Electric Unit (Assembly): Removal and Installation . | Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ] |
DIAGNOSIS PROCEDURE
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | PERFORM DTC CHECK Perform ABS actuator and electric unit (control unit) "DTC check". Refer to [ SDT FUNCTION (ABS / ESP®) ]. Is the inspection result normal? | GO TO 2 | Check items displayed by "DTC check". |
| 2 | CHECK COMBINATION METER Check if the indication and operation of combination meter are normal. Refer to [ METER DIAGNOSIS DESCRIPTION ] Is the inspection result normal? | Replace ABS actuator and electric unit (control unit). Refer to [ ACTUATOR AND ELECTRIC UNIT (ASSEMBLY): REMOVAL AND INSTALLATION ]. | Replace combination meter. Refer to [ COMBINATION METER: REMOVAL AND INSTALLATION ] |
DIAGNOSIS PROCEDURE
VDC/TCS/ABS: Symptom Table
If ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp turn ON, perform "DTC check".
| Symptom | Check item | Reference |
|---|---|---|
| Excessive ABS function operation frequency | Brake force distribution | [ EXCESSIVE ABS FUNCTION OPERATION FREQUENCY ] |
| Looseness of front and rear axle | ||
| Wheel sensor and rotor system | ||
| Unexpected pedal reaction | Brake pedal stroke | [ UNEXPECTED PEDAL REACTION ] |
| Make sure the braking force is sufficient when the ABS is not operating. | ||
| The braking distance is long | Check stopping distance when the ABS is not operating. | [ THE BRAKING DISTANCE IS LONG ] |
| ABS function does not operate ( (1) ) | ABS actuator and electric unit (control unit) | [ ABS FUNCTION DOES NOT OPERATE ] |
| Pedal vibration or ABS operation sound occurs ( (2) ) | Brake pedal | [ PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS ] |
| ABS actuator and electric unit (control unit) | ||
| Vehicle jerks during VDC/TCS/ABS control | ABS actuator and electric unit (control unit) | VEHICLE JERKS DURING VDC/TCS/ABS CONTROL |
| TCM | ||
| ECM | ||
| NOTE: (1) The ABS does not operate when the speed is 10 km/h (6 MPH) or less. (2) Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed. However, this is normal. When shifting gears When driving on slippery road During cornering at high speed When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more] When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher] | ||
| NOTE |
|---|
| (1) The ABS does not operate when the speed is 10 km/h (6 MPH) or less. (2) Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed. However, this is normal. When shifting gears When driving on slippery road During cornering at high speed When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more] When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher] |
| (1) | The ABS does not operate when the speed is 10 km/h (6 MPH) or less. |
| (2) | Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly depressed. However, this is normal. |
ABLS/ABS SYMPTOM CHART