Nissan Rogue manuals

Nissan Rogue Service Manual: P1572 brake pedal position switch

Nissan Rogue Service Manual / Engine / Engine Control System / DTC/Circuit diagnosis / P1572 brake pedal position switch

DTC Description

DTC DETECTION LOGIC

NOTE: This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not stored in ECM memory. And in that case, 1st trip DTC and 1st trip freeze frame data are displayed. 1st trip DTC is erased when ignition switch OFF. And even when malfunction A is detected in two consecutive trips, DTC is not stored in ECM memory.

DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition
P1572 ASCD BRAKE SW (ASCD BRAKE SW) A When the vehicle speed is above 30 km/h (19 MPH), ON signals from the stop lamp switch and the brake pedal position switch are sent to the ECM at the same time.
B Brake pedal position switch signal is not sent to ECM for extremely long time while the vehicle is driving.

POSSIBLE CAUSE

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.CHECK DTC PRIORITY

If DTC P1572 is displayed with DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1.  Turn ignition switch OFF and wait at least 10 seconds.
  2.  Turn ignition switch ON.
  3.  Turn ignition switch OFF and wait at least 10 seconds.

NOTE: Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for malfunction B. By performing procedure for malfunction A, the incident that causes malfunction B can be detected. >> GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A

  1.  Start engine.
  2.  Press MAIN switch and make sure that CRUISE indicator is displayed in combination meter.
  3.  Drive the vehicle for at least 5 consecutive seconds as per the following conditions.

CAUTION: Always drive vehicle at a safe speed.

NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.

If a road test is expected to be easier, it is unnecessary to lift the vehicle.

Vehicle speed More than 30 km/h (19 mph)
Selector lev Suitable position
  1. Check DTC.

Is DTC detected? YES >> Proceed to EC-415, "Diagnosis Procedure".

NO >> GO TO 4.

4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B

  1.  Drive the vehicle for at least 5 consecutive seconds as per the following conditions.

CAUTION: Always drive vehicle at a safe speed.

NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.

If a road test is expected to be easier, it is unnecessary to lift the vehicle.

Vehicle speed More than 30 km/h (19 mph)
Selector lever Suitable position
Driving location Depress the brake pedal for more than five seconds so as not to come off from the above-mentioned vehicle spee
  1. Check DTC.

Is DTC detected? YES >> Proceed to EC-415, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK DTC PRIORITY

If DTC P1572 is displayed with DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B.

Is applicable DTC detected? YES >> Perform diagnosis of applicable. Refer to EC-93, "DTC Index".

NO >> GO TO 2.

2.CHECK OVERALL FUNCTION-1

With CONSULT

  1.  Turn ignition switch ON.
  2.  Select “BRAKE SW1” in “DATA MONITOR” mode of “ENGINE” using CONSULT.
  3.  Check “BRAKE SW1” indication as per the following conditions.
Monitor item Condition Indication
BRAKE SW1 Brake pedal Slightly depressed OFF
Fully released ON

Without CONSULT

  1.  Turn ignition switch ON.
  2.  Check the voltage between ECM harness connector terminals as per the followin

Check overall function-1

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

NO >> GO TO 4.

3.CHECK OVERALL FUNCTION-2

With CONSULT

Select “BRAKE SW2” and check indication as per the following conditions.

Check overall function-2

Without CONSULT

Check the voltage between ECM harness connector terminals as per the following conditions.

Check overall function-2

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident".

NO >> GO TO 7.

4.CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY

  1.  Turn ignition switch OFF.
  2.  Disconnect brake pedal position switch harness connector.
  3.  Turn ignition switch ON.
  4.  Check the voltage between brake pedal position switch harness connector and ground.

Check brake pedal position switch power supply

Is the inspection result normal? YES >> GO TO 5.

NO >> Perform the trouble diagnosis for power supply circuit.

5.CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect ECM harness connector.
  3.  Check the continuity between brake pedal position switch harness connector and ECM harness connector.

Check brake pedal position switch input signal circuit

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

Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK BRAKE PEDAL POSITION SWITCH

Check the brake pedal position switch. Refer to EC-411, "Component Inspection (Brake Pedal Position Switch)" Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident".

NO >> Replace brake pedal position switch. Refer to BR-20, "Exploded View".

7.CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2.  Disconnect stop lamp switch harness connector.
  3.  Check the voltage between stop lamp switch harness connector and ground.

Check stop lamp switch power supply circuit

Is the inspection result normal? YES >> GO TO 8.

NO >> Perform the trouble diagnosis for power supply circuit.

8.CHECK STOP LAMP SWITCH GROUND CIRCUIT

  1.  Check the continuity between stop lamp switch harness connector and ECM harness connector.

Check stop lamp switch ground circuit

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

Is the inspection result normal? YES >> GO TO 9.

NO >> Repair or replace error-detected parts.

9.CHECK STOP LAMP SWITCH

Check the stop lamp switch. Refer to EC-412, "Component Inspection (Stop Lamp Switch)".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident".

NO >> Replace stop lamp switch. Refer to BR-20, "Exploded View".

Component Inspection (Brake Pedal Position Switch)

1.CHECK BRAKE PEDAL POSITION SWITCH-1

  1.  Turn ignition switch OFF.
  2.  Disconnect brake pedal position harness connector.
  3. Check the continuity between brake pedal position switch terminals as per the following conditions.

Check brake pedal position switch-2

Is the inspection result normal? YES >> INSPECTION END

NO >> GO TO 2.

2.CHECK BRAKE PEDAL POSITION SWITCH-2

  1.  Adjust brake pedal position switch installation. Refer to BR-15, "Adjustment".
  2.  Check the continuity between brake pedal position switch terminals as per the following conditions.

Check brake pedal position switch-2

Is the inspection result normal? YES >> INSPECTION END NO >> Replace brake pedal position switch. Refer to BR-20, "Exploded View".

Component Inspection (Stop Lamp Switch)

1.CHECK STOP LAMP SWITCH-1

  1.  Turn ignition switch OFF.
  2.  Disconnect stop lamp switch harness connector.
  3.  Check the continuity between stop lamp switch terminals as per the following conditions.

Check stop lamp switch-1

Is the inspection result normal? YES >> INSPECTION END

NO >> GO TO 2.

2.CHECK STOP LAMP SWITCH-2

  1.  Adjust stop lamp switch installation. Refer to BR-7, "Inspection".
  2.  Check the continuity between stop lamp switch terminals as per the following conditions.

Check stop lamp switch-2

Is the inspection result normal? YES >> INSPECTION END

NO >> Replace stop lamp switch. Refer to BR-20, "Exploded View".

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