Nissan Murano: Dtc/circuit Diagnosis / P1575 Brake Switch
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
|---|---|---|
| P1575 |
BRAKE SW (Stop lamp switch circuit) |
Stop lamp switch signal is sent to ECM for extremely long time while the Nissan Murano vehicle is being driven. |
POSSIBLE CAUSE
-
Harness and connectors (Stop lamp switch circuit is shorted.)
-
Stop lamp switch
DTC CONFIRMATION PROCEDURE
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
COMPONENT FUNCTION CHECK
With CONSULT
-
Turn ignition switch ON.
-
Select “DATA MONITOR” mode of “ENGINE” with CONSULT.
-
Check that the “BRAKE SW” indication as per the following condition.
Monitor item Condition Indication BRAKE SW Brake pedal Fully released OFF Slightly depressed ON
Without CONSULT
-
Turn ignition switch OFF.
-
Check the stop lamp when depressing and releasing the brake pedal.
Brake pedal Stop lamp Fully released Not illuminated Slightly depressed Illuminated
Is the inspection result normal?
YES>>To check malfunction symptom before repair: Refer to Intermittent Incident.
YES>>Confirmation after repair: INSPECTION END
NO>>Proceed to Diagnosis Procedure.
CHECK STOP LAMP SWITCH FUNCTION
-
Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Check the voltage between ECM harness connector and ground as per the following conditions.
+ – Condition Voltage
(Approx.)ECM Connector Terminal E32 139 Ground Brake pedal Fully released 0 V Slightly depressed Battery voltage
Is the inspection result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>Fixed at 0 V: GO TO 2.
NO>>Fixed at battery voltage: GO TO 4.
CHECK STOP LAMP SWITCH POWER SUPPLY
-
Disconnect stop lamp switch harness connector.
-
Check the voltage stop lamp switch harness connector and ground.
+ – Voltage Stop lamp switch Connector Terminal E38 1 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 3.
NO>>Perform the trouble diagnosis for power supply circuit.
CHECK STOP LAMP SWITCH SIGNAL CIRCUIT
-
Check the continuity stop lamp switch harness connector and ECM harness connector.
+ – Continuity Stop lamp switch ECM Connector Terminal Connector Terminal E38 2 E32 139 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair or replace error-detected parts.
CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to Component Inspection.
Is the inspection result normal?
YES>>Check intermittent incident. Refer to Intermittent Incident.
NO>>Replace stop lamp switch. Refer to Exploded View.
CHECK STOP LAMP SWITCH-I
-
Turn ignition switch OFF.
-
Disconnect stop lamp switch harness connector.
-
Check the continuity between stop lamp switch harness connector terminals as per the following conditions.
Stop lamp switch Condition Continuity + – Terminal 1 2 Brake pedal Fully released Not existed Slightly depressed Existed
Is the inspection result normal?
YES>>INSPECTION END
NO>>GO TO 2.
CHECK STOP LAMP SWITCH-II
-
Adjust stop lamp switch installation. Refer to Adjustment.
-
Check the continuity between stop lamp switch harness connector terminals as per the following conditions.
Stop lamp switch Condition Continuity + – Terminal 1 2 Brake pedal Fully released Not existed Slightly depressed Existed
Is the inspection result normal?
YES>>INSPECTION END
NO>>Replace stop lamp switch. Refer to Exploded View.
P1574 Ascd Vehicle Speed Sensor
DTC Description
DESCRIPTIONThe ECM receives two vehicle speed signals via CAN communication line. One is sent from combination meter, and the other is from TCM (Transmission control module)...
P159f Active Grille Shutter
DTC Description
DTC DETECTION LOGICActive grille shutter normally stops within zone which is defined by zone (90°±20°).If the active grille shutter stops within zone stuck error is detected, and if the active grille shutter stops at position beyond zone overrun error is detected...
Other information:
Nissan Murano (Z52) 2015-2024 Service Manual: B2130 Eeprom
DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC Detection Condition B2130 EEPROM (EEPROM malfunction) Diagnosis condition — Signal (terminal) — Threshold Driver seat control unit detected a CPU malfunction...
Nissan Murano (Z52) 2015-2024 Service Manual: U1a04 Vin Unfinished
DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1A04 VIN UNFINISHED (VIN unfinished) Diagnosis condition When ignition switch is ON. Signal (terminal) — Threshold Nissan Murano Vehicle identification number is not written Diagnosis delay time 1 second or more POSSIBLE CAUSE VIN number is not written TCU FAIL-SAFETelematics system does not function DTC Confirmation Procedure PERFORM DTC CONFIRMATION PROCEDURE CONSULT Ignition switch ON...
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Unfastening the seat belts. Checking seat belt operation
Unfastening the seat belts
To unfasten the seat belt, press the button
on the buckle 
. The seat belt
automatically
retracts.
