Juke F15 (2012 year). Service Repair Manual — part 29
SYSTEM
BRC-21
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
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ABS FUNCTION
ABS FUNCTION : System Description
INFOID:0000000006383053
• By preventing wheel lock through brake force (brake fluid pressure) control that is electronically controlled by
detecting wheel speed during braking, stability during emergency braking is improved so that obstacles can
be easily bypassed by steering operation.
• During braking, control units calculates wheel speed and pseudo-vehicle speed, and transmits pressure
increase, hold or decrease signals to actuator portion according to wheel slip status.
• The following effects are obtained by preventing wheel lock during
braking.
- Vehicle tail slip is prevented during braking when driving straight.
- Understeer and oversteer tendencies are moderated during brak-
ing driving on a corner.
- Obstacles may be easily bypassed by steering operation during
braking.
• CONSULT-III can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in ABS
function, the control is suspended for ABS function. The vehicle
status becomes the same as models without ABS function. How-
ever, EBD function is operated normally. Refer to
.
NOTE:
• ABS has the characteristic as described here, but it is not the
device that helps reckless driving.
• To stop vehicle efficiently, ABS does not operate and ordinary
brake operates at low speed [approx. 5 to 10 km/h (3.1 to 6.2
MPH) or less, but differs subject to road conditions).
• Self-diagnosis is performed immediately after when engine starts
and when vehicle initially is driven [by vehicle speed approx. 15
km/h (9.3 MPH)]. Motor sounds are generated during self-diagno-
sis. In addition, brake pedal may be felt heavy when depressing
brake pedal lightly. These symptoms are not malfunctions.
C1109
When ignition power supply voltage is in following state.
• Ignition power supply voltage: 10 V
≥
Ignition power supply voltage.
• Ignition power supply voltage: 16 V
≤
Ignition power supply voltage.
The following functions are sus-
pended.
• ABS function
• EBD function
C1110
When there is an internal malfunction in the ABS actuator and electric unit (control
unit).
C1111
When a malfunction is detected in motor or motor relay.
C1115
When difference in wheel speed between any wheel and others is detected the ve-
hicle is driven, because of installation of other tires than specified.
C1120
When a malfunction is detected in front LH ABS IN valve.
C1121
When a malfunction is detected in front LH ABS OUT valve.
C1122
When a malfunction is detected in front RH ABS IN valve.
C1123
When a malfunction is detected in front RH ABS OUT valve.
C1124
When a malfunction is detected in rear LH ABS IN valve.
C1125
When a malfunction is detected in rear LH ABS OUT valve.
C1126
When a malfunction is detected in rear RH ABS IN valve.
C1127
When a malfunction is detected in rear RH ABS OUT valve.
C1140
When a malfunction is detected in actuator relay.
U1000
When CAN communication signal is not continuously transmitted or received for 2
seconds or more.
—
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
JPFIC0140GB
BRC-22
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
SYSTEM
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
EBD FUNCTION
EBD FUNCTION : System Description
INFOID:0000000006383054
• By preventing rear wheel slip increase through rear wheel brake force (brake fluid pressure) control that is
electronically controlled when slight skip on front and rear wheels are detected during braking, stability dur-
ing braking is improved.
• EBD function is expanded and developed from conventional ABS function and corrects rear wheel brake
force to appropriate level by electronic control according to load weight (number of passengers).
JPFIC0144GB
Component
Signal description
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• ABS warning lamp signal
JPFIC0142GB
SYSTEM
BRC-23
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
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• During braking, control unit portion compares slight slip on front
and rear wheels by wheel speed sensor signal, transmits drive sig-
nal to actuator portion when rear wheel slip exceeds front wheel
slip for the specified value or more, and controls rear wheel brake
force (brake fluid pressure) so that increase of rear wheel slip is
prevented and slips on front wheel and rear wheel are nearly
equalized. ABS control is applied when slip on each wheel
increases and wheel speed is the threshold value of ABS control or
less.
• CONSULT-III can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in EBD
function, the control is suspended for ABS function and EBD func-
tion. The vehicle status becomes the same as models without ABS
function and EBD function. Refer to
.
SYSTEM DIAGRAM
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0143GB
JPFIC0144GB
Component
Signal description
Combination meter
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Brake warning lamp signal
BRC-24
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT-III Function
INFOID:0000000006383055
APPLICATION ITEMS
CONSULT-III can display each diagnostic item using the diagnostic test modes as follows.
*
: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
ECU IDENTIFICATION
ABS actuator and electric unit (control unit) part number can be read.
SELF DIAGNOSTIC RESULT
.
When “CRNT” is displayed on self-diagnosis result
• The system is presently malfunctioning.
When “PAST” is displayed on self-diagnosis result
• System malfunction in the past is detected, but the system is presently normal.
Freeze frame data (FFD)
When DTC is detected, a vehicle state shown below is recorded and displayed on CONSULT-III.
DATA MONITOR
×
: Applicable
Mode
Function description
ECU identification
Parts number of ABS actuator and electric unit (control unit) can be read.
Self Diagnostic Result
Self-diagnostic results and freeze frame data can be read and erased quickly.
*
DATA MONITOR
Input/Output data in the ABS actuator and electric unit (control unit) can be read.
ACTIVE TEST
Diagnostic Test Mode in which CONSULT-III drives some actuators apart from the ABS actuator and
electric unit (control unit) and also shifts some parameters in a specified range.
Item name
Display item
IGN counter
(0
−
39)
The number of times that ignition switch is turned ON after the DTC is detected is displayed.
• When “0” is displayed: It indicates that the system is presently malfunctioning.
• When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is pres-
ently normal.
NOTE:
Each time when ignition switch is turned OFF to ON, numerical number increases in 1
→
2
→
3...38
→
39. When
the operation number of times exceeds 39, the number do not increase and “39” is displayed until self-diagnosis
is erased.
Item (Unit)
Monitor item selection
Note
ECU INPUT SIGNALS
MAIN SIGNALS
FR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by front LH wheel sensor is dis-
played.
FR RH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by front RH wheel sensor is dis-
played.
RR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by rear LH wheel sensor is dis-
played.
RR RH SENSOR
[km/h (MPH)]
×
×
Wheel speed calculated by rear RH wheel sensor is dis-
played.
FR RH IN SOL
(On/Off)
×
Operation status of front RH wheel ABS IN valve is dis-
played.
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-25
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
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*: Refer to
for ON/OFF conditions of each warning lamp.
ACTIVE TEST
The active test is used to determine and identify details of a malfunction, based on self-diagnosis test result
sand data obtained in the DATA MONITOR. In response to instructions from CONSULT-III, instead of those
from ABS actuator and electric unit (control unit) on the vehicle, a drive signal is sent to the actuator to check
its operation.
CAUTION:
• Never perform ACTIVE TEST while driving the vehicle.
• Always bleed air from brake system before ACTIVE TEST.
• Never perform ACTIVE TEST when system is malfunctioning.
NOTE:
• When active test is performed while depressing the pedal, the pedal depressing stroke may change. This is
not a malfunction.
• “TEST IS STOPPED” is displayed approx. 10 seconds after operation start.
• When performing active test again after “TEST IS STOPPED” is displayed, select “BACK”.
• ABS warning lamp and brake warning lamp may turn ON during active test. This is not a malfunction.
FR RH OUT SOL
(On/Off)
×
Operation status of front RH wheel ABS OUT valve is dis-
played.
FR LH IN SOL
(On/Off)
×
Operation status of front LH wheel ABS IN valve is dis-
played.
FR LH OUT SOL
(On/Off)
×
Operation status of front LH wheel ABS OUT valve is dis-
played.
RR RH IN SOL
(On/Off)
×
Operation status of rear RH wheel ABS IN valve is dis-
played
RR RH OUT SOL
(On/Off)
×
Operation status of rear RH wheel ABS OUT valve is dis-
played.
RR LH IN SOL
(On/Off)
×
Operation status of rear LH wheel ABS IN valve is dis-
played.
RR LH OUT SOL
(On/Off)
×
Operation status of rear LH wheel ABS OUT valve is dis-
played.
EBD WARN LAMP
(On/Off)
Brake warning lamp ON/OFF status is displayed.
*
STOP LAMP SW
(On/Off)
×
×
Stop lamp switch signal input status is displayed.
MOTOR RELAY
(On/Off)
×
ABS motor and motor relay status is displayed.
ACTUATOR RLY
(On/Off)
×
ABS actuator relay status is displayed.
ABS WARN LAMP
(On/Off)
×
ABS warning lamp ON/OFF status is displayed.
*
BATTERY VOLT
(V)
×
×
Voltage supplied to ABS actuator and electric unit (control
unit) is displayed.
EBD SIGNAL
(On/Off)
EBD operation status is displayed.
ABS SIGNAL
(On/Off)
ABS operation status is displayed.
EBD FAIL SIG
(On/Off)
EBD fail-safe signal status is displayed.
ABS FAIL SIG
(On/Off)
EBD fail-safe signal status is displayed.
CRANKING SIG
(On/Off)
Cranking status is displayed.
Item (Unit)
Monitor item selection
Note
ECU INPUT SIGNALS
MAIN SIGNALS
BRC-26
< SYSTEM DESCRIPTION >
[WITHOUT ESP]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
ABS IN Valve and ABS OUT Valve
When “Up”, “Keep” or “Down” is selected on display screen, the following items are displayed when system is
normal.
*: Immediately after being selected, status is “On”. Status changes to “Off” after approx. 2 seconds.
ABS Motor
When “On” or “Off” is selected on display screen, the following items are displayed when system is normal.
Test item
Display item
Display
Up
Keep
Down
FR RH SOL
FR RH IN SOL
Off
On
On
FR RH OUT SOL
Off
Off
On*
FR LH SOL
FRLH IN SOL
Off
On
On
FR LH OUT SOL
Off
Off
On*
RR RH SOL
RR RH IN SOL
Off
On
On
RR RH OUT SOL
Off
Off
On*
RR LH SOL
RR LH IN SOL
Off
On
On
RR LH OUT SOL
Off
Off
On*
Test item
Display item
Display
On
Off
ABS MOTOR
MOTOR RELAY
On
Off
ACTUATOR RLY
On
On
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-27
< ECU DIAGNOSIS INFORMATION >
[WITHOUT ESP]
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ECU DIAGNOSIS INFORMATION
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Reference Value
INFOID:0000000006548681
CONSULT-III DATA MONITOR STANDARD VALUE
Monitor item
Condition
Reference values in normal operation
FR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±
10%)
FR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±
10%)
RR LH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±
10%)
RR RH SENSOR
Vehicle stopped
0.00 km/h (MPH)
When driving straight ahead
*1
Nearly matches the speedometer dis-
play (within
±
10%)
FR RH IN SOL
*2
Active
On
Not activated
Off
FR RH OUT SOL
*2
Active
On
Not activated
Off
FR LH IN SOL
*2
Active
On
Not activated
Off
FR LH OUT SOL
*2
Active
On
Not activated
Off
RR RH IN SOL
*2
Active
On
Not activated
Off
RR RH OUT SOL
*2
Active
On
Not activated
Off
RR LH IN SOL
*2
Active
On
Not activated
Off
RR LH OUT SOL
*2
Active
On
Not activated
Off
EBD WARN LAMP
When brake warning lamp is ON
*3
On
When brake warning lamp is OFF
*3
Off
STOP LAMP SW
Brake pedal depressed
On
Brake pedal not depressed
Off
MOTOR RELAY
Active
On
Not activated
Off
ACTUATOR RLY
Active
On
Not activated (in fail-safe mode)
Off
ABS WARN LAMP
When ABS warning lamp is ON
*3
On
When brake warning lamp is OFF
*3
Off
BATTERY VOLT
Ignition switch ON
10 – 16 V
BRC-28
< ECU DIAGNOSIS INFORMATION >
[WITHOUT ESP]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
*1: Confirm tire pressure is standard value.
*2: Refer to “valve operation” in
for valve operation of each valve.
for ON/OFF conditions of each warning lamp and indicator lamp.
Fail-safe
INFOID:0000000006548682
ABS FUNCTION
ABS warning lamp in combination meter turn ON when a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is suspended for ABS function. The vehicle status becomes the same
as models without ABS function. However, EBD function is operated normally.
NOTE:
ABS self-diagnosis sound may be heard the same as in the normal condition, because self-diagnosis is per-
formed when ignition switch turns ON and when vehicle initially starts.
EBD FUNCTION
ABS warning lamp and brake warning lamp in combination meter turn ON when a malfunction occurs in sys-
tem [ABS actuator and electric unit (control unit)]. The control is suspended for ABS function and EBD func-
tion. The vehicle status becomes the same as models without ABS function and EBD function.
EBD SIGNAL
EBD is activated
On
EBD is not activated
Off
ABS SIGNAL
ABS is activated
On
ABS is not activated
Off
EBD FAIL SIG
In EBD fail-safe
On
EBD is normal
Off
ABS FAIL SIG
In ABS fail-safe
On
ABS is normal
Off
CRANKING SIG
At cranking
On
Other than at cranking
Off
Monitor item
Condition
Reference values in normal operation
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-29
< ECU DIAGNOSIS INFORMATION >
[WITHOUT ESP]
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DTC
Malfunction detected condition
Fail-safe condition
C1101
When an open circuit is detected in rear RH wheel sensor circuit.
The following functions are sus-
pended.
• ABS function
• EBD function (only when both 2
rear wheels are malfunctioning)
C1102
When an open circuit is detected in rear LH wheel sensor circuit.
C1103
When an open circuit is detected in front RH wheel sensor circuit.
C1104
When an open circuit is detected in front LH wheel sensor circuit.
C1105
• When a short circuit is detected in rear RH wheel sensor circuit.
• When power supply voltage of rear RH wheel sensor is in following state.
- Rear RH wheel sensor power supply voltage: 7.5 V
≥
Rear RH wheel sensor pow-
er supply voltage
- Rear RH wheel sensor power supply voltage: 16 V
≤
Rear RH wheel sensor power
supply voltage
• 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.
C1106
• When a short circuit is detected in rear LH wheel sensor circuit.
• When power supply voltage of rear LH wheel sensor is in following state.
- Rear LH wheel sensor power supply voltage: 7.5 V
≥
Rear LH wheel sensor power
supply voltage
- Rear LH wheel sensor power supply voltage: 16 V
≤
Rear LH wheel sensor power
supply voltage
• 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 nor-
mal.
C1107
• When a short circuit is detected in front RH wheel sensor circuit.
• When power supply voltage of front RH wheel sensor is in following state.
- Front RH wheel sensor power supply voltage: 7.5 V
≥
Front RH wheel sensor
power supply voltage
- Front RH wheel sensor power supply voltage: 16 V
≤
Front RH wheel sensor pow-
er supply voltage
• 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.
C1108
• When a short circuit is detected in front LH wheel sensor circuit.
• When power supply voltage of front LH wheel sensor is in following state.
- Front LH wheel sensor power supply voltage: 7.5 V
≥
Front LH wheel sensor pow-
er supply voltage
- Front LH wheel sensor power supply voltage: 16 V
≤
Front LH wheel sensor power
supply voltage
• 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.
BRC-30
< ECU DIAGNOSIS INFORMATION >
[WITHOUT ESP]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Inspection Priority Chart
INFOID:0000000006548683
When multiple DTCs are displayed simultaneously, check one by one depending on the following priority list.
C1109
When ignition power supply voltage is in following state.
• Ignition power supply voltage: 10 V
≥
Ignition power supply voltage.
• Ignition power supply voltage: 16 V
≤
Ignition power supply voltage.
The following functions are sus-
pended.
• ABS function
• EBD function
C1110
When there is an internal malfunction in the ABS actuator and electric unit (control
unit).
C1111
When a malfunction is detected in motor or motor relay.
C1115
When difference in wheel speed between any wheel and others is detected the ve-
hicle is driven, because of installation of other tires than specified.
C1120
When a malfunction is detected in front LH ABS IN valve.
C1121
When a malfunction is detected in front LH ABS OUT valve.
C1122
When a malfunction is detected in front RH ABS IN valve.
C1123
When a malfunction is detected in front RH ABS OUT valve.
C1124
When a malfunction is detected in rear LH ABS IN valve.
C1125
When a malfunction is detected in rear LH ABS OUT valve.
C1126
When a malfunction is detected in rear RH ABS IN valve.
C1127
When a malfunction is detected in rear RH ABS OUT valve.
C1140
When a malfunction is detected in actuator relay.
U1000
When CAN communication signal is not continuously transmitted or received for 2
seconds or more.
—
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
Priority
Detected item (DTC)
1
• U1000 CAN COMM CIRCUIT
• U1010 CONTROL UNIT (CAN)
2
• C1110 CONTROLLER FAILURE
3
• C1109 BATTERY VOLTAGE [ABNORMAL]
• C1111 PUMP MOTOR
• C1140 ACTUATOR RLY
4
• 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]
• 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
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-31
< ECU DIAGNOSIS INFORMATION >
[WITHOUT ESP]
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DTC Index
INFOID:0000000006548684
DTC
Display Item
Refer to
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
C1109
BATTERY VOLTAGE [ABNORMAL]
C1110
CONTROLLER FAILURE
C1111
PUMP MOTOR
C1115
ABS SENSOR [ABNORMAL SIGNAL]
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
C1140
ACTUATOR RLY
U1000
CAN COMM CIRCUIT
U1010
CONTROL UNIT (CAN)
BRC-32
< WIRING DIAGRAM >
[WITHOUT ESP]
BRAKE CONTROL SYSTEM
WIRING DIAGRAM
BRAKE CONTROL SYSTEM
Wiring Diagram
INFOID:0000000006383060
For connector terminal arrangements, harness layout, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to
GI-12, "Connector Information/Explanation of Option Abbreviation"
.
JCFWA0330GB
DIAGNOSIS AND REPAIR WORK FLOW
BRC-33
< BASIC INSPECTION >
[WITHOUT ESP]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work Flow
INFOID:0000000006600948
DETAILED FLOW
1.
INTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform an interview utilizing
and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints
carefully.Check symptoms by driving vehicle with customer, if necessary.
CAUTION:
Customers are not professional. Never guess easily like “maybe the customer means that...,” or “
maybe the customer mentions this symptom”.
>> GO TO 2.
2.
CHECK SYMPTOM
Reproduce the symptom that is indicated by the customer, based on the information from the customer
obtained by interview. Also check that the symptom is not caused by fail-safe mode. Refer to
.
CAUTION:
When the symptom is caused by normal operation, fully inspect each portion and obtain the under-
standing of customer that the symptom is not caused by a malfunction.
>> GO TO 3.
3.
PERFORM THE SELF-DIAGNOSIS
With CONSULT-III.
Perform self-diagnosis for “ABS”.
Is DTC detected?
YES
>> Record or print self-diagnosis results and GO TO 4.
NO
>> GO TO 6.
4.
RECHECK THE SYMPTOM
With CONSULT-III.
1.
Erase self-diagnostic results for “ABS”.
2.
Perform DTC confirmation procedures for the error-detected system.
NOTE:
If some DTCs are detected at the some time, determine the order for performing the diagnosis based on
BRC-30, "DTC Inspection Priority Chart"
[ABS actuator and electric unit (control unit)].
Is any DTC detected?
YES
>> GO TO 5.
NO
>> Check harness and connectors based on the information obtained by interview. Refer to
.
5.
REPAIR OR REPLACE ERROR-DETECTED PART
• Repair or replace error-detected parts.
• Reconnect part or connector after repairing or replacing.
• When DTC is detected, erase self-diagnostic result for “ABS”.
>> GO TO 7.
6.
IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS
Estimate error-detected system based on symptom diagnosis and perform inspection.
Can the error-detected system be identified?
BRC-34
< BASIC INSPECTION >
[WITHOUT ESP]
DIAGNOSIS AND REPAIR WORK FLOW
YES
>> GO TO 7.
NO
>> Check harness and connectors based on the information obtained by interview. Refer to
.
7.
FINAL CHECK
With CONSULT-III.
1.
Check the reference value for “ABS”.
2.
Recheck the symptom and check that the symptom is not reproduced on the same conditions.
Is the symptom reproduced?
YES
>> GO TO 3.
NO
>> INSPECTION END
Diagnostic Work Sheet
INFOID:0000000006600949
Description
• In general, customers have their own criteria for a problem. 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 interview 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/MS
Registration
number
Initial year
registration
Vehicle type
VIN
Storage date
Engine
Mileage
km ( Mile)
Symptom
Does not operate ( ) function
Warning lamp for ( ) turns ON.
Noise
Vibration
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
Urban area
Suburb area
Highway
Mountainous road (uphill or downhill)
Rough road
Operating condition, etc.
Irrelevant
When engine starts
During idling
During driving
During acceleration
At constant speed driving
During deceleration
During cornering (right curve or left curve)
When steering wheel is steered (to right or to left)
DIAGNOSIS AND REPAIR WORK FLOW
BRC-35
< BASIC INSPECTION >
[WITHOUT ESP]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Other conditions
Memo
Interview sheet
Customer
name
MR/MS
Registration
number
Initial year
registration
Vehicle type
VIN
Storage date
Engine
Mileage
km ( Mile)
BRC-36
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT ESP]
C1101, C1102, C1103, C1104 WHEEL SENSOR
DTC/CIRCUIT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR
DTC Logic
INFOID:0000000006600950
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
CHECK DTC DETECTION
With CONSULT-III.
1.
Stat the engine.
2.
Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
3.
Stop the vehicle.
4.
Perform self-diagnosis for “ABS”.
Is DTC “C1101”, “C1102”, “C1103” or “C1104” detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006600951
CAUTION:
Never check between wheel sensor harness connector terminals.
1.
CHECK WHEEL SENSOR
1.
Turn the ignition switch OFF.
2.
Check wheel sensor for damage.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
REPLACE WHEEL SENSOR (1)
With CONSULT-III.
1.
Replace wheel sensor.
-
Front: Refer to
BRC-84, "FRONT WHEEL SENSOR : Removal and Installation"
.
-
Rear: Refer to
BRC-86, "REAR WHEEL SENSOR : Removal and Installation"
2.
Erase Self-diagnosis result for “ABS”.
3.
Turn the ignition switch OFF, and wait 10 seconds or more.
4.
Stat the engine.
5.
Drive the vehicle at approx. 30 km/h (19 MPH) or more for approx. 1 minute.
6.
Stop the vehicle.
DTC
Display Item
Malfunction detected condition
Possible causes
C1101
RR RH SENSOR-1
When an open circuit is detected in rear RH wheel
sensor circuit.
• Harness or connector
• Wheel sensor
• ABS actuator and electric unit
(control unit)
C1102
RR LH SENSOR-1
When an open circuit is detected in rear LH wheel
sensor circuit.
C1103
FR RH SENSOR-1
When an open circuit is detected in front RH wheel
sensor circuit.
C1104
FR LH SENSOR-1
When an open circuit is detected in front LH wheel
sensor circuit.
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