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Nissan Note E12. Manual - part 83

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-23

< ECU DIAGNOSIS INFORMATION >

[ABS]

BRC

Note 1: Confirm tire pressure is normal.
Note 2: On and off timing for warning lamps and indicator lamps.
• Refer to

BRC-14, "ABS : ABS Function"

RR RH OUT SOL

Operation status of all solenoid valves

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)

When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)

Off

RR LH IN SOL

Operation status of all solenoid valves

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)

When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)

Off

RR LH OUT SOL

Operation status of all solenoid valves

Actuator (solenoid valve) is active (“AC-
TIVE TEST” with CONSULT) or actuator
relay is inactive (in fail-safe mode)

When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)

Off

EBD WARN LAMP

EBD warning lamp
(Note 2)

When EBD warning lamp is ON

When EBD warning lamp is OFF

Off

STOP LAMP SW

Brake pedal operation

When brake pedal is depressed

When brake pedal is not depressed

Off

MOTOR RELAY

Motor and motor relay operation

When the motor relay and motor are op-
erating

When the motor relay and motor are not
operating

Off

ACTUATOR RLY

Actuator relay operation

When the actuator relay is operating

When the actuator relay is not operating

Off

ABS WARN LAMP

ABS warning lamp
(Note 2)

When ABS warning lamp is ON

When ABS warning lamp is OFF

Off

BATTERY VOLT

Battery voltage supplied to the ABS actuator
and electric unit (control unit)

Ignition switch ON

10 – 16 V

ENGINE SPEED

Engine speed status

Engine stopped

0 RPM

Engine running

Almost same read-
ing as tachometer

EBD SIGNAL

EBD operation

EBD is active

EBD is inactive

Off

ABS SIGNAL

ABS operation

ABS is active

ABS is inactive

Off

EBD FAIL SIG

EBD fail-safe signal

In EBD fail-safe

EBD is normal

Off

ABS FAIL SIG

ABS fail-safe signal

In ABS fail-safe

ABS is normal

Off

CRANKING SIG

Crank operation

Crank is active

Crank is inactive

Off

Monitor item

Display content

Data monitor

Condition

Reference value in

normal operation

BRC-24

< ECU DIAGNOSIS INFORMATION >

[ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

• Refer to

BRC-15, "ABS : EBD Function"

Fail-safe

INFOID:0000000009365067

ABS FUNCTION

ABS warning lamp in combination meter turns ON when a malfunction occurs in system [ABS actuator and

electric unit (control unit)]. The control is suspended for ABS functions. However, EBD functions operate nor-

mally.

EBD FUNCTION

ABS warning lamp, brake 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 and EBD functions.

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
• EBD (only when both 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: 7.2 V

≥ Rear RH wheel sensor pow-

er 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: 7.2 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: 7.2 V

≥ Front RH wheel sensor

power 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: 7.2 V

≥ Front LH wheel sensor pow-

er 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.

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
• EBD

C1110

When there is an internal malfunction in the ABS actuator and electric unit (control
unit).

C1111

When there is a failure on the pump motor

The following functions are sus-
pended:
• ABS
• EBD

C1115

When difference in wheel speed between any wheel and others is detected when
the vehicle is driven, because of installation of tires other than specified.

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-25

< ECU DIAGNOSIS INFORMATION >

[ABS]

BRC

DTC Inspection Priority Chart

INFOID:0000000009365068

When multiple DTCs are displayed simultaneously, check each one using the following priority list.

C1120

When a malfunction is detected in front LH ABS IN valve.

The following functions are sus-
pended:
• ABS
• EBD

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 CAN signal malfunction is detected..

C1140

When a malfunction is detected in actuator relay.

The following functions are sus-
pended:
• ABS
• EBD

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 electrical unit (control unit).

DTC

Malfunction detected condition

Fail-safe condition

Priority

Detected item (DTC)

• U1000 CAN COMM CIRCUIT
• U1010 CAN COMM CIRCUIT

• C1110 CONTROLLER FAILURE

• C1130 ENGINE SIGNAL 1
• C1144 ST ANG SEN SIGNAL

• C1109 BATTERY VOLTAGE [ABNORMAL]
• C1111 PUMP MOTOR
• C1140 ACTUATOR RLY

• 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