Nissan Sentra Service Manual: C1115 ABS Sensor [abnormal signal]
DTC Logic
DTC DETECTION LOGIC
| DTC | Display Item | Malfunction detected condition | Possible causes |
| C1115 | ABS SENSOR [ABNORMAL SIGNAL] | When difference in wheel speed between any wheel and others is detected while the vehicle is driven, because of installation of tires other than specified. |
|
DTC CONFIRMATION PROCEDURE
1.CHECK SELF DIAGNOSTIC RESULT
With CONSULT
-
Start engine and drive vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
-
Perform self diagnostic result.
Is DTC C1115 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-68, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to BRC-44, "Wiring Diagram".
CAUTION:
Do not check between wheel sensor terminals.
1.CONNECTOR INSPECTION
-
Disconnect ABS actuator and electric unit (control unit) connector E33 and wheel sensor connector of wheel with DTC.
-
Check terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal? YES >> GO TO 2.
NO >> 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? YES >> GO TO 3.
NO >> Replace the wheel sensor. Refer to BRC-106, "FRONT WHEEL SENSOR : Removal and Installation" or BRC-107, "REAR WHEEL SENSOR : Removal and Installation".
3.CHECK TIRES
Check the inflation pressure, wear and size of each tire.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Adjust tire pressure, or replace tire(s).
4.Check wiring harness for short circuit
Check continuity between wheel sensor connector terminals and ground of wheel with DTC.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair the circuit.
5.Check wiring harness for open circuit
Check continuity between ABS actuator and electric unit (control unit) connector E33 and wheel sensor connector of wheel with DTC.
Is the inspection result normal? YES >> Replace the ABS actuator and electric unit (control unit). Refer to BRC-110, "Removal and Installation".
NO >> Repair the circuit.
C1113, C1145, C1146 Yaw rate/side/decel G Sensor
DTC Logic
DTC DETECTION LOGIC
DTC
Display Item
Malfunction detected condition
Possible causes
C1113
G SENSOR
When a malfunction is detected in longitunal G sensor
s ...
C1116 Stop lamp switch
DTC Logic
DTC DETECTION LOGIC
DTC
Display item
Malfunction detected condition
Possible cause
C1116
STOP LAMP SW
When stop lamp switch circuit is open.
Harn ...
Other materials:
Battery
How to handle battery
CAUTION:
If it becomes necessary to start the engine with a booster battery
and jumper cables, use a 12-volt
booster battery.
After connecting battery cables, ensure that they are tightly
clamped to battery terminals for good
contact.
Never add distilled wat ...
On Board Diagnostic (OBD) System of Engine and CVT
The ECM has an on board diagnostic system. It will light up the malfunction
indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
Be sure to turn the ignition switch OFF and disconnect the
negative battery cable before any repair
or inspection ...
Ecu diagnosis information
Abs actuator and electric unit
(control unit)
Reference Value
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.
...
