Page 4254 of 4331
EPS Terminal and Reference Value " .
DIAGNOSTIC PROCEDURE OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or replace damaged parts. • 60 A fusible link (No. m, located in the fuse and fusible link block). Refer to PG-3 .
• 10 A fuse [No. 2, located in the fuse block (J/B)]. Refer to PG-3 .
• Harness for short or open between battery and EPS control unit harness connector M54 termi-
nal 17.
• Harness for short or open between ignition switch and EPS control unit harness connector M53
terminal 10. Connector Terminal Voltage
M53 10 – Ground Battery voltage
M54 17 – Ground Battery voltage
Page 4262 of 4331
![NISSAN TIIDA 2009 Service Repair Manual STC-22< SERVICE INFORMATION >
[EPS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
5. Turn ignition switch “OFF”.
6. Check voltage between EPS control unit harness connector (A) terminals and ground.
7. Connect E NISSAN TIIDA 2009 Service Repair Manual STC-22< SERVICE INFORMATION >
[EPS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
5. Turn ignition switch “OFF”.
6. Check voltage between EPS control unit harness connector (A) terminals and ground.
7. Connect E](/manual-img/5/57398/w960_57398-4261.png)
STC-22< SERVICE INFORMATION >
[EPS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
5. Turn ignition switch “OFF”.
6. Check voltage between EPS control unit harness connector (A) terminals and ground.
7. Connect EPS control unit harness connector.
OK or NG OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
• 60 A fusible link (No. m, located in the fuse and fusible link block). Refer to PG-3 .
• 10 A fuse [No. 2, located in the fuse block (J/B)]. Refer to PG-3 .
• Harness for short or open between battery and EPS control unit harness connector M54 termi-
nal 17.
• Harness for short or open between ignition switch and EPS control unit harness connector M53 terminal 10. 3.
CHECK EPS CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect EPS control unit harness connector.
3. Check continuity between EP S control unit harness connector
(A) terminal and ground.
Also check harness for short to power.
4. Connect EPS control unit harness connector.
OK or NG OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 4.
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 5.
NG >> Check EPS control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts. 5.
SYMPTOM CHECK
Check again.
OK or NG OK >>
INSPECTION END
NG >> Replace combination meter. Refer to DI-19, " Removal and Installation " .
Steering Wheel Turning Fo rce Is Heavy or Light INFOID:0000000004307309
SYMPTOM:
Steering wheel turning force is heavy or light, while driving.
DIAGNOSTIC PROCEDURE 1.
CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to STC-11, " CONSULT-III F
unction (EPS) " .
Connector Terminal Voltage
M53 10 – Ground Approx. 0 V
M54 17 – Ground Battery voltage SGIA1627E
Connector Terminal Continuity
M54 18 YES SGIA1628E
Page 4268 of 4331
WT
N
O P
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Page 4303 of 4331

WW
N
O P
NOTE: This item is displayed, but cannot be monitored.
ACTIVE TEST
Display Item List
CONSULT-III Function (IPDM E/R) INFOID:0000000004306914
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DATA MONITOR
All Signals, Main Signals, Selection From Menu
NOTE: FR WIPER INT “ON/OFF” Displays “FRONT WIPER INT (ON)/Other
(OFF)” status as judged from wiper switch signal.
FR WASHER SW “ON/OFF” Displays “FRONT WASHER Switch
(ON)/Other (OFF)” status as judged from wiper switch sig-
nal.
INT VOLUME “1 - 7” Displays intermittent operation dial position setting (1 - 7) as judged from wiper switch signal.
FR WIPER STOP “ON/OFF” Displays “Stopped (ON)/Operati ng (OFF)” status as judged from auto-stop signal.
VEHICLE SPEED “km/h” Displays vehicle speed stat us as judged from vehicle speed signal.
RR WIPER ON “ON/OFF” Displays “REAR WIPER (ON)/Other (O FF)” status as judged from wiper switch signal.
RR WIPER INT “ON/OFF” Displays “REAR WIPER INT (ON)/Other (OFF)” status as judged from wiper switch signal.
RR WASHER SW “ON/OFF” Displays “FRONT WASHER Switch
(ON)/Other (OFF)” status as judged from wiper switch sig-
nal.
RR WIPER STOP “ON/OFF” Displays “Stopp ed (ON)/Operating (OFF)” status as judged from auto-stop switch 1.
RR WIPER STP2 “ON/OFF” Displays “Stopp ed (ON)/Operating (OFF)” status as judged from auto-stop switch 2.
H/L WASH SW NOTE
“OFF” —
Monitor item Contents Test item Display on CONSULT-III screen Description
Front wiper LO output FR WIPER (LO) Front LO wiper can be operated by any ON-OFF operation.
Front wiper HI output FR WIPER (HI) Front HI wiper can be operated by any ON-OFF operation.
Front wiper INT output FR WIPER (INT) Front INT wiper can be operated by any ON-OFF operation.
Rear wiper output RR WIPER Rear wiper can be operated by any ON-OFF operation. IPDM E/R diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results.
DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them. ALL SIGNALS Monitors all items.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Selects items and monitors them. Item name
CONSULT-III
screen display Display or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR wiper request FR WIP REQ STOP/1LOW/
LOW/HI × × ×
Signal status input from BCM
Wiper auto stop WIP AUTO STOP ACT P/STOP P × × ×Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK × × ×Control status of IPDM E/R
Page 4306 of 4331

OK >> Replace front wiper motor. Refer to
WW-20, " Removal and Installation of Front Wiper Drive
Assembly " .
NG >> Replace IPDM E/R. Refer to PG-27, " Removal and Installation of IPDM E/R " .
Front Wiper Does Not Return to Stop Positi on (After Front Wiper Operate for 10 Sec-
onds, They Stop for 20 Second s, and After Repeating the Operation Five Times, They
Become Inoperative) INFOID:0000000004306916
CAUTION:
• When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wip-
ers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symp-
tom.
• This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROT” item
shows “BLOCK”. OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> GO TO 2. OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> GO TO 3. Terminal
ConditionVoltage
(Approx.)
(+)
(-)
IPDM E/R
connector Terminal
E46 38 Ground Wiper stopped 0V
Wiper operating Battery voltage
Page 4317 of 4331

WW
N
O P
REAR WIPER AND WASHER SYSTEM
Component Parts and Har ness Connector Location INFOID:0000000004306934
System Description INFOID:0000000004306935
• The wiper switch (combination switch ) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by the BCM (body control module) when switch is turned ON.
• The BCM controls rear wiper ON and INT (intermittent) operation.
Power is supplied at all times
• through 40A fusible link (letter g , located in fuse and fusible link box)
• to BCM terminal 70.
With the ignition switch in ON or START position, power is supplied
• through 15A fuse [No. 4, located in the fuse block (J/B)]
• to combination switch terminal 2
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67, and
• to combination switch terminal 12
• through grounds M57 and M61.
REAR WIPER OPERATION When the ignition switch is in the ON or START position, and the rear wiper switch is in the ON position, the
BCM detects a rear wiper ON request through the combi nation switch (wiper switch) reading function and con-
trols the rear wiper motor as follows.
Power is supplied
• through BCM terminal 55
• to rear wiper motor terminal 1.
Ground is supplied
• to rear wiper motor terminal 3