Nissan Pathfinder. Manual — part 245
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-39
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Note 1: Confirm tire pressure is standard value.
for ON/OFF conditions of each warning lamp and indicator
lamp.
Note 3: Models with 4WD System.
Note 4: USS means ‘‘hill start assist.’’
Fail-Safe
INFOID:0000000009177259
VDC FUNCTION, TCS FUNCTION AND hill start assist FUNCTION
VDC warning lamp in combination meter turns ON when a malfunction occurs in the system [ABS actuator
and electric unit (control unit)]. The control is suspended for VDC function, TCS function and hill start assist
function. The vehicle status becomes the same as models without VDC function, TCS function and hill start
assist function. However, ABS function and EBD function are operated normally.
ABS FUNCTION
ABS warning lamp and VDC warning lamp in combination meter turn ON when a malfunction occurs in the
system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC function, TCS func-
tion, ABS function and hill start assist function. The vehicle status becomes the same as models without VDC
function, TCS function, ABS function and hill start assist 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, brake warning lamp and VDC warning lamp in combination meter turn ON when a mal-
function occurs in the system [ABS actuator and electric unit (control unit)]. The control is suspended for VDC
function, TCS function, ABS function, EBD function and hill start assist function. The vehicle status becomes
the same as models without VDC function, TCS function, ABS function, EBD function and hill start assist func-
tion.
TCS SIGNAL
TCS activated
On
TCS not activated
Off
VDC SIGNAL
VDC activated
On
VDC 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
TCS FAIL SIG
In TCS fail-safe
On
TCS is normal
Off
VDC FAIL SIG
In VDC fail-safe
On
VDC is normal
Off
CRANKING SIG
At cranking
On
Other than at cranking
Off
FLUID LEV SW
When brake fluid level switch is ON (brake fluid level
is less than the specified level)
On
When brake fluid level switch is OFF
Off
PARK BRAKE SW
When parking brake is active
On
Parking brake is released
Off
USS SIG
(Note 4)
hill start assist is active
On
hill start assist is inactive
Off
Monitor item
Condition
Reference values in normal operation
BRC-40
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
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:
• VDC function
• TCS function
• ABS function
• EBD function (only when both 2
rear wheels are malfunctioning)
• hill start assist function
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 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.
C1106
• 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 nor-
mal.
C1107
• 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.
C1108
• 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.
C1109
• When ignition voltage is 10 V or less.
• When ignition voltage is 16 V or more.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• EBD function
• hill start assist function
C1111
When a malfunction is detected in motor or motor relay.
C1115
When difference in wheel speed between any wheel and others is detected during
the vehicle is driven because of installation of other tires than specified.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• hill start assist function
C1116
When stop lamp switch signal is not input when brake pedal operates.
C1120
When a malfunction is detected in front LH ABS IN valve.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• EBD function
• hill start assist function
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.
C1130
When a malfunction is detected in ECM system.
The following functions are sus-
pended:
• VDC function
• TCS function
• hill start assist function
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
BRC-41
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
DTC Inspection Priority Chart
INFOID:0000000009177260
When multiple DTCs are displayed simultaneously, check one by one depending on the following priority list.
C1140
When a malfunction is detected in actuator relay.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• EBD function
• hill start assist function
C1142
When a malfunction is detected in pressure sensor.
The following functions are sus-
pended:
• VDC function
• TCS function
• hill start assist function
C1143
When a malfunction is detected in steering angle sensor.
C1144
When neutral position adjustment of steering angle sensor is not complete.
C1145
When a malfunction is detected in yaw rate signal.
C1146
When a malfunction is detected in side/decel G signal.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• hill start assist function
C1155
When brake fluid level low signal is detected.
C1160
When calibration of yaw rate/side/decel G sensor is not complete.
The following functions are sus-
pended:
• VDC function
• TCS function
• hill start assist function
C1164
When a malfunction is detected in cut valve 1.
The following functions are sus-
pended:
• VDC function
• TCS function
• ABS function
• EBD function
• hill start assist function
C1165
When a malfunction is detected in cut valve 2.
C1170
When the information in ABS actuator and electric unit (control unit) is not the same.
C1197
When a malfunction is detected in vacuum sensor.
Electrical vacuum assistance of
brake booster is suspended.
C1198
• When an open circuit is detected in vacuum sensor circuit.
• When a short circuit is detected in vacuum sensor circuit.
• When a malfunction is detected in vacuum sensor noise.
C1199
When brake booster vacuum is approx. 0 kPa (0 mmHg) during engine running.
—
C119A
When a malfunction is detected in supply power voltage of vacuum sensor.
Electrical vacuum assistance of
brake booster is suspended.
U1000
When CAN communication signal is not continuously received for 2 seconds or
more.
The following functions are sus-
pended:
• VDC function
• TCS function
• hill start assist function
DTC
Malfunction detected condition
Fail-safe condition
Priority
Detected item (DTC)
1
• U1000 CAN COMM CIRCUIT
2
• C1170 VARIANT CODING
3
• C1130 ENGINE SIGNAL 1
• C1144 ST ANG SEN SIGNAL
4
• C1109 BATTERY VOLTAGE [ABNOMAL]
• C1111 PUMP MOTOR
• C1140 ACTUATOR RLY
BRC-42
< ECU DIAGNOSIS INFORMATION >
[VDC/TCS/ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
DTC Index
INFOID:0000000009177261
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
• C1160 DECEL G SEN SET
• C1164 CV 1
• C1165 CV 2
• C1197 VACUUM SENSOR
• C1198 VACUUM SEN CIR
• C1199 BRAKE BOOSTER
• C119A VACUUM SEN VOLT
6
• C1155 BR FLUID LEVEL LOW
Priority
Detected item (DTC)
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 [ABNOMAL]
C1111
PUMP MOTOR
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
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