NISSAN ALMERA N16 2003 Electronic Repair Manual

Wiring DiagramNJEC0658
YEC323A
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0500 VEHICLE SPEED SENYD
Wiring Diagram
EC-107

Diagnostic ProcedureNJEC0659
1 CHECK VEHICLE SPEED SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 417 and combination meter terminal 56. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK GO TO 3.
NG GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M63, F102
Harness for open or short between ECM and combination meter
Repair open circuit or short to ground or short to power in harness or connectors.
3 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK GO TO 5.
NG GO TO 4. (models without ABS)
GO TO 5. (models with ABS)
4 CHECK SPEEDOMETER CIRCUIT FOR OPEN AND SHORT
Check the following.
Harness connectors E75, F36
Harness for open or short between vehicle speed sensor and engine ground
Harness for open or short between combination meter and vehicle speed sensor
OK or NG
OK Check vehicle speed sensor and combination meter. Refer to EL section.
NG Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK SPEEDOMETER CIRCUIT FOR OPEN AND SHORT
Check the following.
Harness for open or short between ABS actuator and electric unit and combination meter
OK or NG
OK Check ABS actuator and electric unit. Refer to BR section.
NG Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
DTC P0500 VEHICLE SPEED SENYD
Diagnostic Procedure
EC-108

SEF893Y
DescriptionNJEC0738The stop lamp switch is installed to brake pedal bracket. The switch
senses brake pedal position and sends an ON-OFF signal to the
ECM. The ECM uses the signal to control the fuel injection control
system.
ECM Terminals and Reference ValueNJEC0739Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
405 R/G Stop lamp switch[Ignition switch “ON”]
Brake pedal fully releasedApproximately 0V
[Ignition switch “ON”]
Brake pedal depressedBATTERY VOLTAGE
(11 - 14V)
416 Y/BBrake pedal position
switch[Ignition switch “ON”]
Brake pedal fully releasedBATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
Brake pedal depressedApproximately 0V
On Board Diagnosis LogicNJEC0740This self-diagnosis has the one trip detection logic.
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1571
0807An irregular voltage signal from the switch is sent
to ECM.Harness or connectors
(The stop lamp switch circuit is open or shorted.)
Stop lamp switch
SEF817Y
DTC Confirmation ProcedureNJEC0741WITH CONSULT-IINJEC0741S011) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Depress and release brake pedal more than 10 times.
4) If DTC is detected, go to “Diagnostic Procedure”, EC-112.
WITHOUT CONSULT-IINJEC0741S021) Turn ignition switch “ON”.
2) Depress and release brake pedal more than 10 times.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0571 BRAKE SWYD
Description
EC-109

3) Turn ignition switch “OFF”, wait at least 5 seconds and then
turn “ON”.
4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with
ECM.
5) If DTC is detected, go to “Diagnostic Procedure”, EC-112.
DTC P0571 BRAKE SWYD
DTC Confirmation Procedure (Cont’d)
EC-110

Wiring DiagramNJEC0742
YEC324A
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0571 BRAKE SWYD
Wiring Diagram
EC-111

Diagnostic ProcedureNJEC0743
1 CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch “OFF”.
2. Check the stop lamp when depressing and releasing the stop lamp switch.
MTBL0443
OK or NG
OK GO TO 4.
NG GO TO 2.
2 CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch harness connector.
SEF893Y
2. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-II or tester.
SEF435Y
OK or NG
OK GO TO 4.
NG GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector M2
10A fuse
Harness for open and short between stop lamp switch and fuse
Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0571 BRAKE SWYD
Diagnostic Procedure
EC-112

4 CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Disconnect stop lamp switch harness connector.
SEF893Y
4. Check harness continuity between ECM terminal 405 and stop lamp switch terminal 2. Refer to Wiring Diagram.
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK GO TO 6.
NG GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M74, F112
Harness for open or short between ECM and stop lamp switch
Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch terminals 1 and 2 under the following conditions.
SEF904Y
OK or NG
OK GO TO 7.
NG Replace stop lamp switch.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0571 BRAKE SWYD
Diagnostic Procedure (Cont’d)
EC-113

7 CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect brake pedal position switch harness connector.
SEF893Y
3. Turn ignition switch “ON”.
4. Check voltage between brake pedal position switch terminal 2 and groundwith CONSULT-II or tester.
SEF905Y
OK or NG
OK GO TO 9.
NG GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M74, F112
Harness connector E75, F36
Harness for open and short between brake pedal position switch and ECM relay
Harness for open and short between brake pedal position switch and ECM
Repair open circuit or short to ground or short to power in harness or connectors.
9 CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 416 and brake pedal position switch terminal 1. Refer to Wiring Dia-
gram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK GO TO 11.
NG GO TO 10.
DTC P0571 BRAKE SWYD
Diagnostic Procedure (Cont’d)
EC-114

10 DETECT MALFUNCTIONING PART
Check the following.
Harness connectors M74, F112
Harness for open or short between ECM and brake pedal position switch
Repair open circuit or short to ground or short to power in harness or connectors.
11 CHECK BRAKE PEDAL POSITION SWITCH
Check continuity between brake pedal position switch terminals 1 and 2 under the following conditions.
SEF906Y
OK or NG
OK GO TO 12.
NG Replace brake pedal position switch.
12 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0571 BRAKE SWYD
Diagnostic Procedure (Cont’d)
EC-115

SEC220B
DescriptionNJEC0734The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis LogicNJEC0735This self-diagnosis has the one trip detection logic.
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1107
0802An excessively high or low voltage from the
absolute pressure sensor (built-into ECM) is sent
to ECM.ECM
(ECCS-D control module)
SEF817Y
DTC Confirmation ProcedureNJEC0736WITH CONSULT-IINJEC0736S011) Turn ignition switch “ON”.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Start engine and wait at least 2 seconds.
4) If DTC is detected, go to “Diagnostic Procedure”, EC-117.
WITHOUT CONSULT-IINJEC0736S021) Turn ignition switch “ON” and wait at least 2 seconds.
2) Start engine and wait at least 2 seconds.
3) Turn ignition switch “OFF”, wait at least 5 seconds and then
turn “ON”.
4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with
ECM.
5) If DTC is detected, go to “Diagnostic Procedure”, EC-117.
DTC P1107 ECM 10YD
Description
EC-116