Nissan Note [1487/1872] Consult ii reference value in data monitor mode

Nissan Note [1487/1872] Consult ii reference value in data monitor mode
DTC P1805 BRAKE SWITCH
EC-1487
[HR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P1805 BRAKE SWITCH PFP:25320
Description
BBS004Q9
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
CONSULT-II Reference Value in Data Monitor Mode
BBS004QA
Specification data are reference values.
On Board Diagnosis Logic
BBS004QB
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
BBS004QC
When the malfunction is detected, ECM enters fail-safe mode and MI light up.
DTC Confirmation Procedure
BBS004QD
WITH CONSULT-II
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the DTC with CONSULT-II.
4. Select “DATA MONITOR” mode with CONSULT-II.
5. If DTC is detected, go to EC-1489, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch ON.
2. Fully depress the brake pedal for at least 5 seconds.
3. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory.
Refer to EC-1269, "
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)" .
4. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
5. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
6. If DTC is detected, go to EC-1489, "
Diagnostic Procedure" .
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW
Ignition switch: ON
Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1805
1805
Brake switch
A brake switch signal is not sent to ECM for
extremely long time while the vehicle is driv-
ing.
Harness or connectors
(Stop lamp switch circuit is open or shorted.)
Stop lamp switch
Engine operation condition in fail-fail safe mode
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition Driving condition
When engine is idling Normal
When accelerating Poor acceleration
PBIB1952E

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