PG-1
ELECTRICAL
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CONTENTS
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
POWER SUPPLY ROUTING CIRCUIT ...............4
Schematic ........................................................... ......4
Wiring Diagram - POWER - ......................................6
Fuse ........................................................................16
Fusible Link .............................................................16
Circuit Breaker (Built Into BCM) ..............................16
Circuit Breaker ........................................................16
IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) .................
17
System Description ............................................. ....17
CAN Communication System Description ...............18
Function of Detecting Ignition Relay Malfunction ....18
CONSULT-III Function (IPDM E/R) ..................... ....18
Auto Active Test ......................................................20
IPDM E/R Terminal Arrangement - Type A .............23
IPDM E/R Terminal Arrangement - Type B .............24
Terminal and Reference Value for IPDM E/R .........25
IPDM E/R Power/Ground Circuit Inspection ...........27
Inspection with CONSULT-III (Self-Diagnosis) .......28
Removal and Installation of IPDM E/R ................ ....28
GROUND CIRCUIT ...........................................30
Ground Distribution .............................................. ....30
HARNESS .........................................................39
Harness Layout ................................................... ....39
Wiring Diagram Codes (Cell Codes) .......................59
ELECTRICAL UNITS LOCATION ....................62
Electrical Units Location ..........................................62
HARNESS CONNECTOR .................................66
Description ...............................................................66
ELECTRICAL UNITS ........................................69
Terminal Arrangement .............................................69
STANDARDIZED RELAY .................................70
Description ...............................................................70
SUPER MULTIPLE JUNCTION (SMJ) .............72
Terminal Arrangement .............................................72
FUSE BLOCK-JUNCTION BOX (J/B) ..............74
Terminal Arrangement .............................................74
FUSE AND FUSIBLE LINK BOX ......................75
Terminal Arrangement .............................................75
Revision: January 20102010 Versa
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
System DescriptionINFOID:0000000005395354
• IPDM E/R (Intelligent Power Distribution Module Engi ne Room) integrates the relay box and fuse block
which were originally placed in engine compartment. It controls integrated relays via IPDM E/R control cir-
cuits.
• IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control, oil pressure switch signal reception, etc.
• It controls operation of each electrical co mponent via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R integr ated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
• Headlamps (High, Low)
• Parking lamps
• Tail and license plate lamps
• Front fog lamps
2. Wiper control Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Rear window defogger relay control Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay.
4. A/C compressor control Using CAN communication lines, it receives signal s from the ECM and controls the A/C compressor
(magnet clutch).
5. Starter control Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
6. Cooling fan control Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
7. Horn control Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
8. Daytime light system control (Canada only) Using CAN communication lines, it receives signals from the BCM and controls the daytime light relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L-line, CAN
H-line), it is possible to transmit a maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
1. Fail-safe control • When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication returns to normal operation, it also returns to normal control.
• Operation of control parts by IPDM E/ R during fail-safe mode is as follows:
Controlled system Fail-safe mode
Headlamp • With the ignition switch ON, headlamp low relay is ON, headlamp high relays are OFF, and
daytime light system (Canada only) is OFF.
• With the ignition switch OFF, the headlamp relays are OFF.
Tail, license plate and parking lamps • With the ignition switch ON, the tail lamp relay is ON. • With the ignition switch OFF, the tail lamp relay is OFF.
Cooling fan • With the ignition switch ON, cooling fan relay-1, relay-2, and relay-3 are ON.
• With the ignition switch OFF, all cooling fan relays are OFF.
Front wiper Until the ignition switch is turned off, the front wiper relays remain in the same status they
were in just before fail
−safe control was initiated.
Revision: January 20102010 Versa
PG-42
< SERVICE INFORMATION >
HARNESS
ENGINE ROOM HARNESS (LH VIEW)
Refer to "ENGINE ROOM HARNESS (RH VIEW)" for continuation of engine room harness.
AAMIA0136GB
C4 E3 GR/4 : Cooling fan motor (without A/C) D3 E25 B/3 : Front combination lamp LH (headlamp)
C4 E3 B/2 : Cooling fan motor (with A/C) E4 E27 B/2 : Front fog lamp LH
C4 E5 GR/3 : Resistor D4 E29 B/2 : Front combination lamp LH (turn signal)
C3 E6 — : Fuse and fusible link box B1 E31 W/24 : TCM
B1 E7 SMJ : To M69 B1 E32 GR/24 : TCM
Revision: January 20102010 Versa
PG-74
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FUSE BLOCK-JUNCTION BOX (J/B)
FUSE BLOCK-JUNCTION BOX (J/B)
Terminal ArrangementINFOID:0000000005395373
LKIA0812E
Revision: January 20102010 Versa
FUSE AND FUSIBLE LINK BOXPG-75
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FUSE AND FUSIBLE LINK BOX
Terminal ArrangementINFOID:0000000005395374
ABMIA1601GB
Revision: January 20102010 Versa
TROUBLE DIAGNOSISRF-11
< FUNCTION DIAGNOSIS >
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FUNCTION DIAGNOSIS
TROUBLE DIAGNOSIS
Component Parts and Har ness Connector LocationINFOID:0000000005396794
System DescriptionINFOID:0000000005396795
OUTLINE
Electric sunroof system consists of
• Sunroof switch
• Sunroof motor assembly
• BCM (body control module)
BCM supplies power to the sunroof motor. S unroof operation depends on sunroof switch condition.
OPERATION
Power is supplied at all times
• through 40A fusible link (letter g , located in the fuse and fusible link box)
• to BCM terminal 70, and
• through BCM terminal 69
• to sunroof motor assembly terminal 7.
When the ignition switch is in the ON or START position, power is supplied
• through 10A fuse [No. 6, located in the fuse block (J/B)]
• to BCM terminal 38, and
• through BCM terminal 68
• to sunroof motor assembly terminal 9.
Ground is supplied
• to BCM terminal 67
• through grounds M57 and M61.
TILT UP/SLIDE CLOSE OPERATION
When up/close switch is pressed, ground is supplied
LIIA2597E
1. BCM M18, M19, M20 (view with glove
box removed) 2. Sunroof switch R6 3. Sunroof motor assembly R4
4. Front door switch LH B8, RH B108
Revision: January 20102010 Versa
STARTING SYSTEMSC-9
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STARTING SYSTEM
System DescriptionINFOID:0000000005394861
M/T Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the START position, power is supplied
• from ignition switch terminal ST
• to IPDM E/R terminal 21.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse (No. 49, located in the IPDM E/R)
• to the clutch interlock switch terminal 1.
With the clutch pedal depressed, power is supplied
• through the clutch interlock switch terminal 2
• to IPDM E/R terminal 35.
Ground is supplied at all times
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
If the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN communication lines,
the IPDM E/R grounds the starter relay and power is supplied
• through terminal 19 of the IPDM E/R
• to terminal S of the starter motor.
The starter motor magnetic switch energizes closing the circuit between the battery and the starter motor. The
starter motor is case ground through the cylinder block. With power and ground supplied, the starter motor
operates.
A/T Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the START position, power is supplied
• from ignition switch terminal ST
• to IPDM E/R terminal 21.
With the ignition switch in the ON or START position, power is supplied
• through 10A fuse (No. 54, located in the IPDM E/R)
• to transmission range switch terminal 1.
With the selector lever in the P or N position, power is supplied
• through transmission range switch terminal 2
• to IPDM E/R terminal 35.
Ground is supplied at all times
• to IPDM E/R terminals 39 and 59
• through body grounds E15 and E24.
If the IPDM E/R receives a starter relay request ON signal from the BCM over the CAN communication lines,
the IPDM E/R grounds the starter relay and power is supplied
• through terminal 19 of the IPDM E/R
• to terminal S of the starter motor.
The starter motor magnetic switch energizes closing the circuit between the battery and the starter motor. The
starter motor is case ground through the cylinder block. With power and ground supplied, the starter motor
operates.
CVT Models
Power is supplied at all times
• to starter motor terminal B, and
• through 40A fusible link (letter h, located in the fuse and fusible link box)
• to ignition switch terminal B.
With the ignition switch in the START position, power is supplied
• from ignition switch terminal ST
Revision: January 20102010 Versa
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STARTING SYSTEM
5. Check voltage between starter motor connector F27 terminal Band ground using a digital circuit tester.
OK or NG
OK >> GO TO 2.
NG >> Check harness between the battery and the starter motor for open circuit.
2.CHECK VOLTAGE DROP ON STARTER MOTOR CIRCUIT
1. Check voltage between starter motor connector F27 terminal B and battery positive terminal using a digital circuit tester.
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter motor for poor continuity.
3.CHECK VOLTAGE DROP ON STARTER MOTOR GROUND CIRCUIT
1. Check voltage between starter motor case and battery negative terminal using a digital circuit tester.
OK or NG
OK >> Starter motor ground circuit is OK. Further inspection is necessary. Refer to "WORK FLOW".
NG >> Check harness between the starter motor case and
ground for poor continuity.
DIAGNOSTIC PROCEDURE 2
Check Magnetic Switch Circuit
1.CHECK POWER SUPPLY TO MAGNETIC SWITCH
1. Remove the fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn the ignition switch OFF.
4. Disconnect starter motor connector F28.
5. Check voltage between starter motor connector F28 terminal S and ground using a digital circuit tester.
OK or NG
OK >> GO TO 2.
NG >> Check the following: • 40A fusible link (letter h, located in fuse and fusible
link box)
Battery voltage should exist
WKIA0137E
Ignition switch in
START
: Less than 0.2V
WKIA0138E
Ignition switch in
START : Less than 0.2V
AWBIA0750GB
Ignition switch in
START: Battery voltage
AWBIA0751GB
Revision: January 20102010 Versa