Nissan Juke Service and Repair Manual : ASCD brake switch

Component Function Check

1.CHECK ASCD BRAKE SWITCH FUNCTION

1. Turn ignition switch ON.With CONSULT-III


1. Turn ignition switch ON.

2. Select “ENGINE” using CONSULT-III.

3. Select “BRAKE SW1” in “DATA MONITOR” mode.

4. Check “BRAKE SW1” indication under the following conditions.

Without CONSULT-III


1. Turn ignition switch ON.Without CONSULT-III


1. Turn ignition switch ON.

2. Check the voltage between ECM harness connector terminals under the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Go to EC-765, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ASCD brake switch harness connector.

3. Turn ignition switch ON.

4. Check the voltage between ASCD brake switch harness connector and ground.

*1: LHD models or RHD models with CVT


*1: LHD models or RHD models with CVT *2: RHD models with M/T

Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.DETECT MALFUNCTIONING PART

Check the following.

• Harness connector E105, M77 (LHD models or RHD models with CVT) • Harness connector M84, M201 (RHD models with M/T) • 10A fuse (No. 3)
• Harness for open or short between ASCD brake switch and fuse

>> Repair open circuit or short to ground in harness or connectors.

3.CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between ASCD brake switch harness connector and ECM harness connector.

*1: LHD models or RHD models with CVT


*1: LHD models or RHD models with CVT *2: RHD models with M/T

4. Also check harness for short to ground and short to power.

Is the inspection result normal? YES >> GO TO 4.

NO >> Harness for open or short between ECM and ASCD brake switch 4.CHECK ASCD BRAKE SWITCH

Refer to EC-766, "Component Inspection (ASCD Brake Switch)" Is the inspection result normal? YES >> GO TO 5.

NO >> Replace ASCD brake switch.

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

>> INSPECTION END

Component Inspection (ASCD Brake Switch)

1.CHECK ASCD BRAKE SWITCH-I

1. Turn ignition switch OFF.

2. Disconnect ASCD brake switch harness connector.

3. Check the continuity between ASCD brake switch terminals under the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> GO TO 2.

2.CHECK ASCD BRAKE SWITCH-II

1. Adjust ASCD brake switch installation. Refer to BR-22, "Inspection and Adjustment" (LHD) or BR-90, "Inspection and Adjustment" (RHD).

2. Check the continuity between ASCD brake switch terminals under the following conditions.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace ASCD brake switch. Refer to BR-88, "Exploded View".

    P2A00 A/F sensor 1
    DTC Logic DTC DETECTION LOGIC To judge the malfunction, the A/F signal computed by ECM from the A/F sensor 1 signal is monitored so it will not shift to LEAN side or RICH side. DTC CONFIRMATIO ...

    ASCD indicator
    Component Function Check 1.CHECK ASCD INDICATOR FUNCTION Check ASCD indicator under the following conditions. Is the inspection result normal? YES >> INSPECTION END NO >> Go to EC-7 ...

    Other materials:

    Combination switch output circuit
    Diagnosis Procedure 1.CHECK OUTPUT 1 - 5 CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM and combination switch connectors. 3. Check continuity between BCM harness connector and combination switch harness connector. Does continuity exist? YES >> GO TO 2. NO >> ...

    Removal and Installation
    CAUTION: • Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat resistance, corrosion resistance and shape. • Perform the operation with the exhaust system fully cooled down because the system is still hot just after the engine stops. • Be careful ...

    Handling precaution
    NISSAN Dynamic Control System • The engine torque, engine power, boost pressure, and instantaneous fuel consumption are provided for information purposes only. They are not intended to prompt the driver to adjust driving style. The readings may be slightly delayed relative to the actual vehic ...