engine control system NISSAN TIIDA 2009 Service Repair Manual

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CHARGING SYSTEM
System Description INFOID:0000000004306825
The generator provides DC voltage to operate the vehicl e's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times to generator terminal 3 through
• 10A fuse (No. 29, located in the fuse and fusible link box).
Power is supplied through terminal 1 to charge the batte ry and operate the vehicle's electrical system. Output
voltage is monitored at terminal 3 by the IC regulator. The charging circuit is protected by the 120A fusible link
[letter a , located in the fusible link box (battery)].
Ground is supplied
• to generator terminal 5
• through body ground F5, and
• through the generator case to the cylinder block
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse [No. 3, located in the fuse block (J/B)]
• to combination meter terminal 28 for the charge warning lamp.
The IC regulator controls ground to terminal 38 of the combination meter through terminal 2 of the generator.
When the ignition is turned on and power becomes availabl e at terminal 2, this "wakes up" the regulator. The
regulator monitors charge output and grounds terminal 2 or leaves it open depending on charge output. With
power and ground supplied, the charge warning lamp will il luminate. When the generator is providing sufficient
voltage, the ground is opened and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a malfunction is indicated.

DTC C1601
BATTERY VOLT "
TORQUE SENSOR
[C1604] When the torque sensor malfunction assembled in steering column
assembly is detected. STC-15, " DTC C1604
TORQUE SENSOR "
EPS MOTOR
[C1606] When the motor driver
malfunction of EPS control unit or EPS motor
malfunction is detected. STC-16, " DTC C1606
EPS MOTOR "
EEPROM
[C1607] When the memory (EEPROM) system malfunction is detected in
EPS control unit. STC-17, " DTC C1607
EEPROM "
CONTROL UNIT
[C1608] When the internal malfunction is detected in EPS control unit. STC-17, " DTC C1608
CONTROL UNIT "
CAN VHCL SPEED
[C1609] When the malfunction is detected in vehicle speed signal received
with CAN communication. STC-18, " DTC C1609
CAN VHCL SPEED "
CAN ENG RPM
[C1610] When the malfunction is detected in engine status signal received
with CAN communication. STC-19, " DTC C1610
CAN ENG RPM "
CAN COMM CIRCUIT
[U1000] When EPS control unit is
not transmitting or receiving CAN commu-
nication signal 2 seconds or more. STC-19, " DTC U1000
CAN COMM CIRCUIT "
NO DTC IS DETECTED.
FURTHER TESTING MAY BE RE-
QUIRED. No NG item has been detected. —Monitor item (Unit) Remarks
MOTOR VOL (V) Power supply voltage for EPS control unit is displayed
TORQUE SENSOR (Nm) Steering wheel turning force detected by torque sensor is displayed
MOTOR SIG (A) Current commanded value to EPS motor is displayed
MOTOR CURRENT (A) Current value cons umed by EPS motor is displayed
VEHICLE SPEED (km/h) or (mph) Vehicle speed is displayed from vehicle speed signal with CAN communication
WARNING LAMP (ON/OFF) EPS warning la mp control status is displayed
DERATING STAT (ON/OFF) Protect overload status is displayed
ENGINE STATUS (STOP/RUN) Engine spee d is displayed from engine status signal with CAN communication

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OK >>
INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and el ectric unit (control unit) and combination meter.
Refer to BRC-18, " CONSULT-III Function (ABS) " ,
DI-12, " CONSULT-III Function (METER/M&A) "
.
DTC C1610 CAN ENG RPM INFOID:0000000004307304
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE Data are reference value.
DIAGNOSTIC PROCEDURE CONSULT-III Function (ENGINE) " (MR TYPE 1),
EC-1116, " CONSULT-III F
unction (ENGINE) " (MR TYPE 2) or
EC-103, " CONSULT-III Function " (HR16DE).
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 2. EPS Control Unit Input/Output Signal Reference
Value " .
OK or NG OK >> GO TO 3.
NG >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts. OK >>
INSPECTION END
NG >> Perform self-diagnosis with ECM again. Refer EC-604, " CONSULT-III Function (ENGINE) " (MR
TYPE 1), EC-1116, " CONSULT-III Function (ENGINE) " (MR TYPE 2) or
EC-103, " CONSULT-III
Function " (HR16DE).
DTC U1000 CAN COMM CIRCUIT INFOID:0000000004307305
DIAGNOSTIC PROCEDURE “ CAN COMM CIRCUIT [U1000] ” displayed?
YES >> Print out CONSULT-III screen and go to
LAN-17, " Trouble Diagnosis Flow Chart " .
NO >> INSPECTION END
Component Inspection INFOID:0000000004307306
EPS MOTOR 1. Turn ignition switch “OFF”.
2. Disconnect EPS control unit harness connector. Monitor item (Unit) Content Condition Display value
ENGINE STATUS (RUN/STOP) Engine status Engine stopped (Engine speed: Less than 400 rpm) STOP
Engine running (Engine speed: 400 rpm or more) RUN

TROUBLE DIAGNOSIS FOR SYMPTOMS
STC-21
< SERVICE INFORMATION >
[EPS] C
D E
F
H I
J
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M A
B STC
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TROUBLE DIAGNOSIS FOR SYMPTOMS
EPS Warning Lamp Does Not Turn ON INFOID:0000000004307307
SYMPTOM: EPS warning lamp does not turn ON when ignition switch to “ON”.
DIAGNOSTIC PROCEDURE 1.
CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to STC-11, " CONSULT-III Function (EPS) " .
Is the “ CAN COMM CIRCUIT [U1000] ” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to
STC-19, " DTC U1000 CAN
COMM CIRCUIT " .
NO >> GO TO 2. 2.
CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to STC-9, " EPS Control Unit Input/Output Signal Reference
Value " .
OK or NG OK >> GO TO 3.
NG >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts. 3.
SYMPTOM CHECK
Check again.
OK or NG OK >>
INSPECTION END
NG >> Replace combination meter. Refer to DI-19, " Removal and Installation " .
EPS Warning Lamp Does Not Turn OFF INFOID:0000000004307308
SYMPTOM: EPS warning lamp does not turn OFF for several seconds after starting the engine.
DIAGNOSTIC PROCEDURE 1.
CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to STC-11, " CONSULT-III Function (EPS) " .
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 2. 2.
CHECK EPS CONTROL UNI T POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect EPS control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between EPS control unit harness connector (A) terminals and ground.
Connector Terminal VoltageM53 10 – Ground Battery voltage
M54 17 – Ground Battery voltage SGIA1626E

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Is the “ CAN COMM CIRCUIT [U1000] ” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to
STC-19, " DTC U1000 CAN
COMM CIRCUIT " .
NO-1 >> With ABS: GO TO 2.
NO-2 >> Without ABS: GO TO 3. CONSULT-III
Function (ABS) " .
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 4. CONSULT-III Function (TRANSMISSION) " .
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 4. CONSULT-III Function (METER/M&A) " .
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 5. CONSULT-III Function (ENGINE) " (MR TYPE 1),
EC-1116," CONSULT-III Function (ENGINE) " (MR TYPE 2) or
EC-103, " CONSULT-III Function " (HR16DE).
Is any malfunction detected by self-diagnosis? YES >> Check the malfunctioning system.
NO >> GO TO 6. DTC C1606 EPS MOTOR " .
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. EPS Control Unit Input/Output Signal Reference
Value " .
OK or NG OK >> GO TO 8.
NG >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts. OK >>
INSPECTION END
NG >> Check the steering wheel turning force because there may be mechanical malfunction. Refer to PS-6, " On-Vehicle Inspection and Service " .
Unbalance Steering Wheel Turning Forc e and Return Between Right and Left
INFOID:0000000004307310
SYMPTOM:

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FRONT WIPER AND WASHER SYSTEM
Component Parts and Har ness Connector Location INFOID:0000000004306904
System Description INFOID:0000000004306905
• Front wiper relays (front wiper relay, front wiper hi gh relay) are located in the IPDM E/R (intelligent power
distribution module engine room).
• Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals.
Terminal combination status is read by BCM (body control module) when switch is turned ON.
• BCM controls front wiper LO, HI, and INT (intermittent) operation.
• IPDM E/R operates wiper motor accordi ng to CAN communication signals from BCM.
OUTLINE
Power is supplied at all times
• to ignition relay, located in IPDM E/R, from battery directly,
• through 40A fusible link (letter g, located in fuse and fusible link box)
• to BCM terminal 70,
• through 30A fuse (No. 39, located in IPDM E/R)
• to front wiper relay located in IPDM E/R
• through 15A fuse (No. 52, located in IPDM E/R), and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R.
When ignition switch is in ON or START position, power is supplied
• through ignition relay (located in IPDM E/R)
• to front wiper relay (located in IPDM E/R), and 1. IPDM E/R E45, E46 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Front wiper motor E1
(view with cowl
top cover removed)
4. Front and rear washer motor E2 (view with front bumper fascia re-
moved) 5. Combination switch (wiper switch)
M28