Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: B2f70-01 Stop Lamp
DTC Description
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detecting condition | |
|---|---|---|---|
| B2F70-01 |
Stop lamp (Stop lamp) |
Diagnosis condition | When brake pedal is depressed |
| Signal (terminal) |
|
||
| Threshold | BCM makes a comparison between stop lamp switch 1 signal and stop lamp switch 2 signal. It judges from their values to detect the malfunctioning circuit 10 consecutive times | ||
| Diagnosis delay time | Depress brake pedal 10 times | ||
POSSIBLE CAUSE
-
Harness or connectors
(Stop lamp switch circuit is open or shorted)
-
Stop lamp switch
-
Fuse
FAIL-SAFE
—
CONFIRMATION PROCEDURE
DTC CONFIRMATION
CONSULT
-
Depress brake pedal 10 times.
-
Ignition switch ON.
-
Select “Self diagnosis result” mode of “BCM”.
Is DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO-1>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO-2>>Confirmation after repair: Inspection End.
DTC Diagnosis Procedure
CHECK STOP LAMP SWITCH
CONSULT
-
Select “Brake switch 1” and “Brake switch 2” in “Data monitor” mode of “BCM [SIGNAL BUFFER]”.
-
Check “Brake switch 1” and “Brake switch 2” indication under the following condition:
| Monitor item | Condition | Indication | |
|---|---|---|---|
| Brake switch 1 | Brake pedal | Depressed | Off |
| Not depressed | On | ||
| Brake switch 2 | Depressed | On | |
| Not depressed | Off | ||
Is the indication normal?
YES>>Stop lamp switch is OK.
NO-1>>Brake switch 1: GO TO 2.
NO-2>>Brake switch 2: GO TO 7.
CHECK FUSE
Check that the following fuse is not blown (open):
| Signal name | Fuse No. |
|---|---|
| Battery power supply | 32 (5 A) |
Is the fuse blown (open)?
YES>>Replace the blown (open) fuse after replacing the cause of blown (open).
NO>>GO TO 3.
CHECK STOP LAMP SWITCH SIGNAL-1
-
Ignition switch OFF.
-
Disconnect BCM connector.
-
Ignition switch ON.
-
Check voltage between BCM harness connector and ground.
(+) (–) Condition Voltage
(Approx.)BCM Connector Terminal E29 (with type B meter) 111 Ground Stop lamp switch 1 ON (brake pedal is not depressed) Battery voltage E60 (with type A meter) 116 Stop lamp switch 1 OFF (brake pedal is depressed) 0 V
Is the inspection normal?
YES>>Inspection End.
NO>>GO TO 4.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT-1
-
Ignition switch OFF.
-
Disconnect stop lamp switch connector.
-
Ignition switch ON.
-
Check voltage between stop lamp switch harness connector and ground.
(+) (–) Voltage
(Approx.)Stop lamp switch Connector Terminal E38 4 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 5.
NO>>Check harness for open or short between stop lamp switch and fuse.
CHECK STOP LAMP SWITCH SIGNAL CIRCUIT-1
-
Ignition switch OFF.
-
Check continuity between stop lamp switch harness connector and BCM harness connector.
Stop lamp switch BCM Continuity Connector Terminal Connector Terminal E38 3 E29 (with type B meter) 111 Yes E60 (with type A meter) 116 -
Check continuity between stop lamp switch harness connector and ground.
Stop lamp switch — Continuity Connector Terminal E38 3 Ground No
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness.
CHECK STOP LAMP SWITCH
Refer to Component Inspection.
Is the inspection result normal?
YES>>Inspection End.
NO>>Replace stop lamp switch. Refer to Exploded View (without ProPILOT ASSIST), or Exploded View (with ProPILOT ASSIST).
CHECK FUSE
Check that the following fuse is not blown (open):
| Signal name | Fuse No. |
|---|---|
| Battery power supply | 21 (10 A) |
Is the fuse blown (open)?
YES>>Replace the blown (open) fuse after replacing the cause of blown (open).
NO>>GO TO 8.
CHECK STOP LAMP SWITCH SIGNAL-2
-
Ignition switch OFF.
-
Disconnect BCM connector.
-
Check voltage between BCM harness connector and ground.
(+) (–) Condition Voltage
(Approx.)BCM Connector Terminal E29 (with type B meter) 110 Ground Stop lamp switch 2 ON (brake pedal is depressed) Battery voltage E60 (with type A meter) 115 Stop lamp switch 2 OFF (brake pedal is not depressed) 0 V
Is the inspection normal?
YES>>Inspection End.
NO>>GO TO 9.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT-2
-
Disconnect stop lamp switch connector.
-
Check voltage between stop lamp switch harness connector and ground.
(+) (–) Voltage
(Approx.)Stop lamp switch Connector Terminal E38 1 Ground Battery voltage
Is the inspection result normal?
YES>>GO TO 10.
NO>>Check harness for open or short between stop lamp switch and fuse.
CHECK STOP LAMP SWITCH SIGNAL CIRCUIT-2
-
Check continuity between stop lamp switch harness connector and BCM harness connector.
Stop lamp switch BCM Continuity Connector Terminal Connector Terminal E38 2 E29 (with type B meter) 110 Yes E60 (with type A meter) 115 -
Check continuity between stop lamp switch harness connector and ground.
Stop lamp switch — Continuity Connector Terminal E38 2 Ground No
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness.
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