2003 NISSAN TEANA Service Manual

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Page 1529 of 3502

NISSAN TEANA 2003 Service Manual DTC P1805 BRAKE SWITCH
EC-247
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Wiring DiagramBBS005H8
TBWM1499E

Page 1530 of 3502

NISSAN TEANA 2003 Service Manual EC-248
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DTC P1805 BRAKE SWITCH

Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output vol

Page 1531 of 3502

NISSAN TEANA 2003 Service Manual DTC P1805 BRAKE SWITCH
EC-249
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3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between stop la

Page 1532 of 3502

NISSAN TEANA 2003 Service Manual EC-250
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DTC P1805 BRAKE SWITCH

Component InspectionBBS005HA
STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check continuity between stop lamp

Page 1533 of 3502

NISSAN TEANA 2003 Service Manual DTC P2122, P2123 APP SENSOR
EC-251
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DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionBBS005HB
The accelerator pedal position sensor is installed on the upper e

DTC P2122, P2123 APP SENSOR
EC-251
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DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionBBS005HB
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals to the ECM. The
ECM judges the current opening angle of the accelerator pedal from
these signals and controls the throttle control motor based on these
signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine oper-
ation such as fuel cut.
CONSULT-II Reference Value in Data Monitor ModeBBS005HC
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
On Board Diagnosis LogicBBS005HD
These self-diagnoses have the one trip detection logic.
NOTE:
If DTC P2122 or P2123 is displayed with DTC P1229, first perform the trouble diagnosis for DTC P1229.
Refer to EC-233
.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MI lights up.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL SEN 1
Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.65 - 0.87V
Accelerator pedal: Fully depressed More than 4.3V
ACCEL SEN 2*
Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.56 - 0.96V
Accelerator pedal: Fully depressed More than 4.0V
CLSD THL POS
Ignition switch: ONAccelerator pedal: Fully released ON
Accelerator pedal: Slightly
depressedOFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2122
2122Accelerator pedal position
sensor 1 circuit low inputAn excessively low voltage from the APP sensor 1
is sent to ECM.
Harness or connectors
(APP sensor 1 circuit is open or
shorted.)
Accelerator pedal position sensor
(APP sensor 1) P2123
2123Accelerator pedal position
sensor 1 circuit high inputAn excessively high voltage from the APP sensor 1
is sent to ECM.
Engine operating condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

Page 1534 of 3502

NISSAN TEANA 2003 Service Manual EC-252
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DTC P2122, P2123 APP SENSOR

DTC Confirmation ProcedureBBS005HE
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 sec

Page 1535 of 3502

NISSAN TEANA 2003 Service Manual DTC P2122, P2123 APP SENSOR
EC-253
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Wiring DiagramBBS005HF
TBWM1500E

Page 1536 of 3502

NISSAN TEANA 2003 Service Manual EC-254
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DTC P2122, P2123 APP SENSOR

Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/outpu

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