SYSTEMBRC-21
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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O PCONDITIONS FOR INDICATOR LAMP ILLUMINATION
• Turns ON when VDC and TCS functions are switched to non-operational status (OFF) by VDC OFF switch.
• Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
CONDITIONS FOR WARNING LAMP ILLUMINATION
Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
Component Function
Pump Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.
Motor Activates the pump according to signals from ABS actuator and electric unit (control unit).
Cut valve 1
Cut valve 2 Shuts off the ordinary brake line from master cylinder.
Suction valve 1
Suction valve 2 Supplies the brake fluid from master cylinder to the pump.
ABS IN valve Switches the fluid pressure line to increase or hold according to signals from control unit.
ABS OUT valve Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
Return check valve Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice
of each valve when brake is released.
Reservoir Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper and wheel cylinder.
Pressure sensor Detects the brake fluid pressure and tr ansmits signal to ABS ac tuator and electric unit (control unit).
Condition (status) VDC OFF indicator lamp SLIP indicator lamp
Ignition switch OFF OFFOFF
For approx. 1 second after the ignition switch
is turned ON ON
ON
Approx. 1 second after ignition switch is
turned ON (when the system is in normal op-
eration) OFF
OFF
When VDC OFF switch is ON (VDC function
and TCS function are OFF) ON
OFF
VDC function is malfunctioning OFFON
TCS function is malfunctioning OFFON
Condition (status)ABS warning lamp Brake warning lamp
Ignition switch OFF OFFOFF
For approx. 1 second after the ignition switch
is turned ON ON
ON
Approx. 1 second after ignition switch is
turned ON (when the system is in normal op-
eration) OFF
OFF
After engine starts OFFOFF
When parking brake operates (parking brake
switch ON) OFF
ON
When brake fluid is less than the specified
level (brake fluid level switch ON) OFF
ON
VDC function is malfunctioning OFFOFF
TCS function is malfunctioning OFFOFF
ABS function is malfunctioning ONOFF
EBD function is malfunctioning ONON
Brake limited slip differential (BLSD) function
is malfunctioning OFF
OFF
Revision: August 2015 2016 Versa Note
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BRC-42
< ECU DIAGNOSIS INFORMATION >[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Inspection Priority Chart
INFOID:0000000012430845
When multiple DTCs are displayed simultaneously, check each one using the following priority list.
U1000 When CAN communication signal is not continuously transmitted or received for 2
seconds or more.
The following functions are sus-
pended:
•VDC
•TCS
U1002
When ABS actuator and electric unit (control unit) is not transmitting or receiving
CAN communication signal for 2 seconds or less.
U1010 When detecting error during the initial diagnosis of CAN controller of ABS actuator
and electric unit (control unit)
DTC
Malfunction detected condition Fail-safe condition
PriorityDetected item (DTC)
1 • U1000 CAN COMM CIRCUIT
• U1002 SYSTEM COMM(CAN)
• U1010 CAN CONTROLLER CIRCUIT
2 • C1110 CONTROLLER FAILURE
• C1153 EMERGENCY BRAKE
• C1170 VARIANT CODING
3 • C1130 ENGINE SIGNAL 1
• C1144 ST ANG SEN SIGNAL
4 • C1109 BATTERY VOLTAGE [ABNORMAL]
• C 1111 P U M P M O T O R
•C1140 ACTUATOR RLY
5 • C1101 RR RH SENSOR-1
• C1102 RR LH SENSOR-1
• C1103 FR RH SENSOR-1
• C1104 FR LH SENSOR-1
• C1105 RR RH SENSOR-2
• C1106 RR LH SENSOR-2
• C1107 FR RH SENSOR-2
• C1108 FR LH SENSOR-2
• C1115 ABS SENSOR [ABNORMAL SIGNAL]
• C1116 STOP LAMP SW
• C1120 FR LH IN ABS SOL
• C1121 FR LH OUT ABS SOL
• C1122 FR RH IN ABS SOL
• C1123 FR RH OUT ABS SOL
• C1124 RR LH IN ABS SOL
• C1125 RR LH OUT ABS SOL
• C1126 RR RH IN ABS SOL
• C1127 RR RH OUT ABS SOL
• C1142 PRESS SEN CIRCUIT
• C1143 ST ANG SEN CIRCUIT
• C1145 YAW RATE SENSOR
• C1146 SIDE G-SEN CIRCUIT
• C1154 PNP POSI SIG
•C1164 CV1
•C1165 CV2
•C1166 SV1
•C1167 SV2
6 • C1155 BR FLUID LEVEL LOW
Revision: August 2015 2016 Versa Note
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DIAGNOSIS AND REPAIR WORK FLOWBRC-53
< BASIC INSPECTION > [VDC/TCS/ABS]
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• Turn the ignition switch OFF → ON → OFF after erasing Self Diagnostic Result.
• Be sure to wait of 10 seconds after turning ignition switch OFF or ON.
>> GO TO 7.
6.IDENTIFY MALFUNCTIONING SY STEM BY SYMPTOM DIAGNOSIS
Identify malfunctioning system based on sym ptom diagnosis and perform inspection.
Can the malfunctioning system be identified?
YES >> GO TO 7.
NO >> Check harness and connectors based on the information obtained in the interview. Refer to GI-42,
"Intermittent Incident".
7.FINAL CHECK
With CONSULT
1. Select “DATA MONITOR” of “ABS”
2. Check the reference values. Refer to BRC-36, "
Reference Value".
3. Recheck the symptom and check that the sympt om is not reproduced on the same conditions.
Is the symptom reproduced?
YES >> GO TO 3.
NO >> Inspection End.
Diagnostic Work SheetINFOID:0000000012430849
DESCRIPTION
• In general, customers have their own criteria for a pr oblem. Therefore, it is important to understand the
symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all
the information for the diagnosis, prepare the in terview sheet referring to the interview points.
• In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.
INTERVIEW SHEET SAMPLE
Interview sheet
Customer
name MR/MSRegistration
number
Initial year
registration
Vehicle type VIN
Storage date Engine/trac-
tion MotorMileage
km (Mile)
Symptom †
Does not operate ( ) function
† Warning lamp turns ON.
† or † or † †
† Other ( )
† Noise (Location: ) † Vibration (Location: )
† Other ( )
First occurrence † Recently † Other ( )
Frequency of occurrence † Always † Under a certain conditions of † Sometimes ( time(s)/day)
Climate con-
ditions †
Irrelevant
Weather † Fine † Cloud † Rain †Snow † Others ( )
Temperature † Hot †Warm † Cool † Cold † Temperature [Approx. °C ( °F)]
Relative humidity † High † Moderate † Low
Road conditions † Ordinary road † Highway † Mountainous road (uphill or downhill) †Rough road
Revision: August 2015 2016 Versa Note
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BRC-58
< DTC/CIRCUIT DIAGNOSIS >[VDC/TCS/ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
DTC/CIRCUIT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
DTC DescriptionINFOID:0000000012430854
DTC DETECTION LOGIC
POSSIBLE CAUSE
NOTE:
Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear
the DTC. Do not replace the
ABS actuator and electric unit (control unit) for a PAST DTC.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT
1. Start the engine.
2. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes.
3. Stop the vehicle.
4. Turn the ignition switch OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF.
5. Start the engine.
NOTE:
Wait at least 10 seconds after starting the engine.
6. Perform “Self Diagnostic Result” of “ABS”.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES-1 >> “C1101”, “C1102”, “C1103” or “C1104” is displayed as “CRNT”: Proceed to BRC-59, "Diagnosis
Procedure".
DTC Display Item
(Trouble diagnosis content) Malfunction detected condition
C1101 RR RH SENSOR-1
(Rear RH wheel sensor-1) When an open circuit is detected in rear RH wheel sensor circuit.
C1102 RR LH SENSOR-1
(Rear LH wheel sensor-1) When an open circuit is detected in rear LH wheel sensor circuit.
C1103 FR RH SENSOR-1
(Front RH wheel sensor-1) When an open circuit is detected in front RH wheel sensor circuit.
C1104 FR LH SENSOR-1
(Front LH wheel sensor-1) When an open circuit is detected in front LH wheel sensor circuit.
PAST DTC
CRNT DTC
• Harness or connector
• ABS actuator and electric unit (control unit) power supply sys-
tem
•Fuse
• Fusible link
•Battery • Harness or connector
• Wheel sensor
• ABS actuator and electric unit (control unit)
• ABS actuator and electric unit
(control unit) power supply sys-
tem
•Fuse
• Fusible link
•Battery
• Vehicle was not driven after previous repair
Revision: August 2015 2016 Versa Note
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C1101, C1102, C1103, C1104 WHEEL SENSOR
BRC-59
< DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS]
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YES-2 >> “C1101”, “C1102”, “C1103” or “C1104” is disp layed as “PAST”: Inspection End (Erase “Self Diag-
nostic Result” of “ABS”).
NO-1 >> To check malfunction symptom before repair: Refer to GI-42, "
Intermittent Incident".
NO-2 >> Confirmation after repair: Inspection End.
Diagnosis ProcedureINFOID:0000000012430855
CAUTION:
Never check between wheel sensor harness connector terminals.
1.CHECK WHEEL SENSOR
1. Turn the ignition switch OFF.
2. Check the wheel sensor for damage.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.REPLACE WHEEL SENSOR (1)
With CONSULT
1. Replace the wheel sensor.
- Front: Refer to BRC-140, "
FRONT WHEEL SENSOR : Removal and Installation".
- Rear: Refer to BRC-141, "
REAR WHEEL SENSOR : Removal and Installation".
2. Erase “Self Diagnostic Result” of “ABS”.
3. Turn the ignition switch OFF → ON → OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF or ON.
4. Start the engine.
5. Drive the vehicle at approx. 50 km/h ( 31 MPH) or more for approx. 2 minutes.
NOTE:
Vehicle must be driven after repair or replacement to erase the previous DTCs.
6. Stop the vehicle.
7. Turn the ignition switch OFF. NOTE:
Wait at least 10 seconds after turning ignition switch OFF.
8. Start the engine. NOTE:
Wait at least 10 seconds after starting the engine.
9. Perform “Self Diagnostic Result” of “ABS”.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES >> GO TO 3.
NO >> Inspection End.
3.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Check the ABS actuator and electric unit (contro l unit) harness connector for disconnection or looseness.
3. Check the wheel sensor harness c onnector for disconnection or looseness.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair / replace harness or connector, securely lock the connector, and GO TO 4.
4.PERFORM SELF-DIAGNOSIS (1)
With CONSULT
1. Erase “Self Diagnostic Result” of “ABS”.
2. Turn the ignition switch OFF → ON → OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF or ON.
3. Start the engine.
4. Drive the vehicle at approx. 50 km/h ( 31 MPH) or more for approx. 2 minutes.
NOTE:
Vehicle must be driven after repair or replacement to erase the previous DTCs.
Revision: August 2015 2016 Versa Note
cardiagn.com
BRC-60
< DTC/CIRCUIT DIAGNOSIS >[VDC/TCS/ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR
5. Stop the vehicle.
6. Turn the ignition switch OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF.
7. Start the engine. NOTE:
Wait at least 10 seconds after starting the engine.
8. Perform “Self Diagnostic Result” of “ABS”.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES >> GO TO 5.
NO >> Inspection End.
5.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIR-
CUIT
Check the ABS actuator and electric unit (contro l unit) power supply and ground circuits. Refer to BRC-121,
"Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair / replace harness, connector, fuse, or fusible link.
6.CHECK TERMINAL
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector and then check the ABS actu-
ator and electric unit (control unit) pin terminal s for damage or loose connection with harness connector.
3. Disconnect wheel sensor harness connector and chec k each wheel sensor pin terminal for damage or
loose connection with harness connector.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair / replace harness, connector, or terminal, and GO TO 7.
7.PERFORM SELF-DIAGNOSIS (2)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase “Self Diagnostic Result” of “ABS”.
4. Turn the ignition switch OFF → ON → OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF or ON.
5. Start the engine.
6. Drive the vehicle at approx. 50 km/h (31 MPH) or more for approx. 2 minutes. NOTE:
Vehicle must be driven after repair or replacement to erase the previous DTCs.
7. Stop the vehicle.
8. Turn the ignition switch OFF. NOTE:
Wait at least 10 seconds after turning ignition switch OFF.
9. Start the engine. NOTE:
Wait at least 10 seconds after starting the engine.
10. Perform “Self Diagnostic Result” of “ABS”.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES >> GO TO 8.
NO >> Inspection End.
8.CHECK WHEEL SENSOR HARNESS
1. Turn the ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) harness connector.
3. Disconnect wheel sensor harness connector.
Revision: August 2015 2016 Versa Note
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C1101, C1102, C1103, C1104 WHEEL SENSOR
BRC-61
< DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS]
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4. Check the continuity between ABS actuator and electric unit (control unit) harness connector and wheel sensor harness connector. (Check the continuity while turning steering wheel left and right, or while mov-
ing center harness in wheel housing.)
Power Supply Circuit
Signal Circuit
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair / replace harness or connector, and GO TO 9.
9.PERFORM SELF-DIAGNOSIS (3)
With CONSULT
1. Connect ABS actuator and electric unit (control unit) harness connector.
2. Connect wheel sensor harness connector.
3. Erase “Self Diagnostic Result” of “ABS”.
4. Turn the ignition switch OFF → ON → OFF.
NOTE:
Wait at least 10 seconds after turning ignition switch OFF or ON.
5. Start the engine.
6. Drive the vehicle at approx. 50 km/h ( 31 MPH) or more for approx. 2 minutes.
NOTE:
Vehicle must be driven after repair or replacement to erase the previous DTCs.
7. Stop the vehicle.
8. Turn the ignition switch OFF. NOTE:
Wait at least 10 seconds after turning ignition switch OFF.
9. Start the engine.
NOTE:
Wait at least 10 seconds after starting the engine.
10. Perform “Self Diagnostic Result” of “ABS”.
Is DTC
“C1101”, “C1102”, “C1103” or “C1104” detected?
YES >> GO TO 10.
NO >> Inspection End.
10.CHECK WHEEL SENSOR OUTPUT SIGNAL
1. Disconnect ABS actuator and electric unit (control unit) harness connector.
2. Disconnect wheel sensor harness connector.
3. Connect ABS active wheel sensor tester (SST: J-45741-A) to wheel sensor using appropriate adapter.
4. Turn the ABS active wheel sensor tester power switch ON. 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.
5. 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.
ABS actuator and electric unit (control unit) Wheel sensor
Continuity
Connector Terminal Connector Terminal
E33 36
E51 (Front LH wheel)
2Yes
27
E52 (Front RH wheel)
29 B22 (Rear LH wheel)
34 B35 (Rear RH wheel)
ABS actuator and electric unit (control unit) Wheel sensor
Continuity
Connector Terminal Connector Terminal
E33 37
E51 (Front LH wheel)
1Yes
26
E52 (Front RH wheel)
30 B22 (Rear LH wheel)
33 B35 (Rear RH wheel)
Revision: August 2015 2016 Versa Note
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C1105, C1106, C1107, C1108 WHEEL SENSOR
BRC-63
< DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS]
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C1105, C1106, C1107, C1108 WHEEL SENSOR
DTC DescriptionINFOID:0000000012430856
DTC DETECTION LOGIC
POSSIBLE CAUSE
NOTE:
Confirm if DTC is PAST or CRNT. If DTC is CRNT, proceed with Diagnosis Procedure. If DTC is PAST, clear
the DTC. Do not replace the ABS actuator and electric unit (control unit) for a PAST DTC.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT
1. Start the engine.
2. Drive the vehicle at approx. 50 km/h ( 31 MPH) or more for approx. 2 minutes.
3. Stop the vehicle.
4. Turn the ignition switch OFF.
DTC Display Item
(Trouble diagnosis content) Malfunction detected condition
C1105 RR RH SENSOR-2
(Rear RH wheel sensor-2) • When power supply voltage of rear RH wheel sensor is low.
• When distance between rear RH wheel sensor and rear RH wheel sensor rotor is large.
• When installation of rear RH wheel sensor or rear RH wheel sensor rotor is not normal.
• When there is contamination on or damage to the rear RH wheel sensor or rear RH sen-
sor rotor.
C1106 RR LH SENSOR-2
(Rear LH wheel sensor-2) • When power supply voltage of rear LH wheel sensor is low.
• When distance between rear LH wheel sensor and rear LH wheel sensor rotor is large.
• When installation of rear LH wheel sensor or rear LH wheel sensor rotor is not normal.
• When there is contamination on or damage to the rear LH wheel sensor or rear LH sen-
sor rotor.
C1107 FR RH SENSOR-2
(Front RH wheel sensor-2) • When power supply voltage of front RH wheel sensor is low.
• When distance between front RH wheel sensor and front RH wheel sensor rotor is large.
• When installation of front RH wheel sensor or front RH wheel sensor rotor is not normal.
• When there is contamination on or damage to the front RH wheel sensor or front RH sen-
sor rotor.
C1108 FR LH SENSOR-2
(Front LH wheel sensor-2) • When power supply voltage of front LH wheel sensor is low.
• When distance between front LH wheel sensor and front LH wheel sensor rotor is large.
• When installation of front LH wheel sensor or front LH wheel sensor rotor is not normal.
• When there is contamination on or damage to the front LH wheel sensor or front LH sen-
sor rotor.
PAST DTC CRNT DTC
• Harness or connector
• Wheel sensor
• Sensor rotor
• Tire size
• ABS actuator and electric unit (control unit) power supply sys-
tem
•Fuse
• Fusible link
•Battery • Harness or connector
• Wheel sensor
• Sensor rotor
• ABS actuator and electric unit (control unit)
• Tire size
• ABS actuator and electric unit
(control unit) power supply sys-
tem
•Fuse
• Fusible link
•Battery
• Vehicle was not driven after previous repair
Revision: August 2015 2016 Versa Note
cardiagn.com