
MTC-54
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
YES >> GO TO 6.
NO >> Adjust or replace air mix door cable. Refer to MTC-65, "
Air Mix Door Cable Adjustment" .
6.CHECK AIR DUCTS
Check ducts for air leaks.
OK or NG
OK >> GO TO 7.
NG >> Repair air leaks.
7.CHECK HEATER HOSE TEMPERATURES
1. Start engine and warm it up to normal operating temperature.
2. Touch both the inlet and outlet heater hoses. The inlet hose should be hot and the outlet hose should be
warm.
Is the inlet hose hot and the outlet hose warm?
YES >> GO TO 8.
NO >> Both hoses warm: GO TO 9.
8.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine control temperature sensor. Refer to EC-690, "
Component Inspection" (MR18DE) or EC-163,
"Component Inspection" (HR16DE).
OK or NG
OK >> System OK.
NG >> Repair or replace as necessary. Retest.
9.CHECK HEATER HOSES
Check heater hoses for proper installation.
OK or NG
OK >> GO TO 10.
NG >> Repair /replace as necessary. Retest GO TO 7.
10.BACK FLUSH HEATER CORE
1. Back flush heater core.
2. Drain the water from the system.
3. Refill system with new engine coolant. Refer to CO-12, "
Changing Engine Coolant" (HR16DE) or CO-36,
"Changing Engine Coolant" (MR18DE) .
4. Start engine and warm it up to normal operating temperature.
5. Touch both the inlet and outlet heater hoses. The inlet hose should be hot and the outlet hose should be
warm.
Is the inlet hose hot and the outlet hose warm?
YES >> System OK.
NO >> Replace heater core and refill engine coolant. Refer to MTC-68, "
Removal and Installation" .
NoiseINFOID:0000000005396505
SYMPTOM: Noise
INSPECTION FLOW
Revision: January 20102010 Versa

A/C UNIT ASSEMBLYMTC-59
< SERVICE INFORMATION >
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A/C UNIT ASSEMBLY
Removal and InstallationINFOID:0000000005396509
REMOVAL
1. Use a recovery/recycling equipment (f or HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to CO-36, "
Changing Engine Coolant".
3. Remove cowl top cover. Refer to EI-22, "
Removal and Installation".
4. Remove upper clip and position the lower dash insulator aside.
5. Remove bolt (A), and then disconnect low-pressure flexible hose (1) and high-pressure pipe (2) from evaporator.
CAUTION:
Cap or wrap the joint of the pi pe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove clamps (A), and then disconnect heater hoses (1) from heater core.
7. Remove console box assembly. Refer to IP-11, "
Component Parts".
A. A/C unit assembly boltsB. Steering member boltsC. Steering column nuts
SJIA0648E
SJIA0644E
SJIA0645E
Revision: January 20102010 Versa

MTC-60
< SERVICE INFORMATION >
A/C UNIT ASSEMBLY
8. Remove instrument stay nuts (A) and harness clamps (B), andthen remove instrument stay (1).
9. Disconnect thermo control amp. connector (1) for MR18DE - TYPE 2 systems as shown. Di sconnect the thermo control amp.
short connector for MR18DE - TYPE 1 and HR16DE systems.
10. Remove instrument panel and pad. Refer to IP-11, "
Component Parts".
11. Remove side ventilator ducts. Refer to MTC-70, "
Removal and Installation".
12. Remove center ventilator ducts. Refer to MTC-70, "
Removal and Installation".
13. Remove side kicking plates. Refer to EI-39, "
Component".
14. Disconnect the fuel filler door cable and the rear hatch door cable.
15. Remove A/C unit assembly bolts, steering member bolts, steering column nuts and harness clips.
16. Remove steering member, and then remove A/C unit assembly.
INSTALLATION
Installation is in the reverse order of removal.
• When filling radiator with coolant, refer to CO-36, "
Changing Engine Coolant".
• Recharge the refrigerant.
CAUTION:
• Replace O-rings for A/C piping with new ones, and apply compressor oil when installing.
• When recharging refrigerant, check for leaks.
SJIA0646E
SJIA0647E
A/C unit assembly bolt : 6.9 N·m (0.7 kg-m, 61 in-lb)
Steering member bolt : 12 N·m (1.25 kg-m, 9 ft-lb)
Steering column nut : Refer to PS-9, "
Removal and Installation".
Revision: January 20102010 Versa

PG-18
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status • CAN communication is normally performed with other control units.
• Individual unit control by IPDM E/R is normally performed.
• When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status • Process to stop CAN communication is activated.
• All systems controlled by IPDM E/R are stopped. When 1 second has elapsed after CAN communica-tion with other control units is st opped, mode switches to sleep status.
3. Sleep status • IPDM E/R operates in low current-consumption mode.
• CAN communication is stopped.
• When a change in CAN communication signal is detec ted, mode switches to CAN communication sta-
tus.
• When a change in ignition switch signal is detected, mode switches to CAN communication status.
CAN Communication System DescriptionINFOID:0000000005395355
Refer to LAN-7, "System Diagram".
Function of Detecting I gnition Relay MalfunctionINFOID:0000000005395356
• When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM E/
R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
• When the state of the integrated ignition relay does not agree with the state of the ignition switch signal
received via CAN communication, the IPDM E/R activates the tail lamp relay.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
CONSULT-III Function (IPDM E/R)INFOID:0000000005395357
CONSULT-III can display each diagnostic item us ing the diagnostic test modes shown following.
SELF-DIAGNOSTIC RESULTS
Display Item List
Rear window defoggerRear window defogger relay OFF
A/C compressor A/C relay is OFF
Front fog lamps Front fog lamp relay OFF
Controlled system
Fail-safe mode
Ignition switch signalIgnition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)
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.
Revision: January 20102010 Versa

PG-20
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
*1 Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position, display may no t be cor-
rect.
*2 This item is displayed, but does not function.
CAN DIAG SUPPORT MNTR
Refer to LAN-9, "Description" .
ACTIVE TEST
Display Item List
Auto Active TestINFOID:0000000005395358
DESCRIPTION
• In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:
- Rear window defogger
- Front wipers
- Tail, license and parking lamps
- Daytime lamp system (Canada only)
- Front fog lamps
- Headlamps (High, Low)
- A/C compressor (magnet clutch)
- Cooling fan
OPERATION PROCEDURE
1. Close hood and front door RH, and lift wiper arms away from windshield (to prevent glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON and, within 20 seconds, pres s front door switch LH 20 times. Then turn ignition
switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once.
6. After a series of operations is repeated three times, auto active test is completed.
Theft warning
horn request THFT HRN REQ ON/OFF
XX Signal status input from BCM
Horn chirp HORN CHIRP ON/OFF XX Output status of IPDM E/R
Daytime light re-
quest DTRL REQ ON/OFF
XX Signal status input from BCM
Item name
CONSULT-III
screen display Display or unit Monitor item selection
Description
ALL
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
Test name CONSULT-III screen display Description
Head, tail, fog lamp output EXTERNAL LAMPS With a certain ON-OFF operation (OFF, TAIL, LO, HI, FOG), the front
fog lamp, headlamp low, headlamp high RH, headlamp high LH, and
tail lamp relays can be operated.
Rear defogger output REAR DEFOGGER With a certain ON-OFF operation, the rear defogger relay can be oper-
ated.
Front wiper (HI, LO) output FRONT WIPER With a certain operation (OFF, HI ON, LO ON), the front wiper relays
(Lo, Hi) can be operated.
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan relays can be oper-
ated.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.
Revision: January 20102010 Versa

PG-28
< SERVICE INFORMATION >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace IPDM E/R power circuit harness.
3.GROUND CIRCUIT INSPECTION
1. Disconnect IPDM E/R harness connectors E46 and E48.
2. Check continuity between IPDM E/R harness connector E46 (A) terminal 39, E48 (B) terminal 59 and ground.
OK or NG
OK >> Inspection End.
NG >> Repair or replace IPDM E/R ground circuit harness.
Inspection with CONSULT-III (Self-Diagnosis)INFOID:0000000005395363
1.SELF-DIAGNOSIS RESULT CHECK
1. Connect CONSULT-III and select "IPDM E/R" on the "SELECT SYSTEM" screen.
2. Select "SELF-DIAG RESULTS" on the "SELECT DIAG MODE" screen.
3. Check display content in self-diagnosis results.
NOTE:
The Details for Display for the Period are as follows:
• CRNT: Error currently detected by IPDM E/R.
• PAST: Error detected in the past and stored in IPDM E/R memory.
Contents displayed
NO DTC DETECTED. FURTHER TESTING MAY BE REQUIRED.>>Inspection End.
CAN COMM CIRC>>Print out the self-diagnosis result and refer to LAN-17, "
Trouble Diagnosis Flow Chart".
Removal and Installation of IPDM E/RINFOID:0000000005395364
REMOVAL
1. Disconnect the negative battery cable.Battery voltage should exist.
SKIA1987E
Continuity should exist.
WKIA5667E
CONSULT-III Display
CONSULT-III
display code TIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED. — — —
No malfunction
CAN COMM CIRC U1000 X XAny of items listed below have errors:
• TRANSMIT DIAG
•ECM
• BCM/SEC
Revision: January 20102010 Versa

HARNESSPG-59
< SERVICE INFORMATION >
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Wiring Diagram Codes (Cell Codes)INFOID:0000000005395367
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
D4 D405 W/4 : Back door lock assembly C2 D413 B/1 : Rear window defogger (-)
D4 D406 W/2 : Back door request switch F3 D414 — : Body ground
E2 D407 W/2 : High mounted stop lamp
Code Section Wiring Diagram Name
ABS BRC Anti-lock Brake System
A/C,M MTC Manual Air Conditioner
APPS1 EC Accelerator Pedal Position Sensor
A/F EC Air Fuel Ratio Sensor 1
A/FH EC Air Fuel Ratio Sensor 1 Heater
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
BACK/L LT Back-up Lamp
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
B/DOOR BL Back Door Opener
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
COMM AV Audio Visual Communication System
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - Wi th Daytime Light System
ECTS EC Engine Coolant Temperature Sensor
ENGSS AT Engine Speed Signal
EPS STC Electronic Controlled Power Steering
ETC1 EC Electric Throttle Control Function
ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor
FTS CVT CVT Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUEL EC Fuel Ignition System Function
Revision: January 20102010 Versa

TROUBLE DIAGNOSISRF-13
< FUNCTION DIAGNOSIS >
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2. Release the UP/CLOSE switch.
3. Press the UP/CLOSE switch again and continuously hold. The sunroof will begin to move in about 10 sec- onds.
4. Continue to hold the UP/CLOSE switch while the sunroof moves in a jogging motion to the full tilt position.
When the sunroof reaches the full tilt positi on, it will back up a few millimeters and stop.
5. Release the UP/CLOSE switch.
6. Within 5 seconds of releasing the UP/CLOSE s witch, press and hold the UP/CLOSE switch again. The
sunroof will move to the full open pos ition and back to the closed position.
NOTE:
If the UP/CLOSE switch is released anytime during th is teaching process, all learned profile data will be dis-
carded and the procedure will have to be started over.
7. Release the UP/CLOSE switch. Do not disconnect power for at least two seconds. The sunroof is now re-
taught.
CAN Communication System DescriptionINFOID:0000000005396796
Refer to LAN-7 .
Revision: January 20102010 Versa