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Nissan Leaf. Manual - part 430

EVB-3

EVB

Diagnosis Procedure .............................................

119

Component Inspection ..........................................

121

P3375-P3380 CELL OVER DISCHARGE ........

122

DTC Logic .............................................................

122

Diagnosis Procedure .............................................

122

Component Inspection ..........................................

125

P3381-P338C CELL OVER DISCHARGE .......

126

DTC Logic .............................................................

126

Diagnosis Procedure .............................................

126

Component Inspection ..........................................

129

P338D-P3398 CELL OVER DISCHARGE .......

130

DTC Logic .............................................................

130

Diagnosis Procedure .............................................

130

Component Inspection ..........................................

132

P3399-P33A4 CELL OVER DISCHARGE .......

133

DTC Logic .............................................................

133

Diagnosis Procedure .............................................

133

Component Inspection ..........................................

135

P33D4 BATTERY DETERIORATION DIAG-
NOSIS ...............................................................

136

DTC Logic .............................................................

136

Diagnosis Procedure .............................................

136

P33D5 CURRENT SENSOR ............................

137

DTC Logic .............................................................

137

Diagnosis Procedure .............................................

137

P33D6 CURRENT SENSOR ............................

139

DTC Logic .............................................................

139

Diagnosis Procedure .............................................

139

P33D7, P33D9, P33DD TEMPERATURE
SENSOR ...........................................................

141

DTC Logic .............................................................

141

Diagnosis Procedure .............................................

141

Component Inspection ..........................................

142

P33DF BAT VOLTAGE ISOLATION SEN .......

143

DTC Logic .............................................................

143

Diagnosis Procedure .............................................

143

P33E0 BAT VOLTAGE ISOLATION SEN .......

144

DTC Logic .............................................................

144

Diagnosis Procedure .............................................

144

P33E1 BAT VOLTAGE ISOLATION SEN .......

145

DTC Logic .............................................................

145

Diagnosis Procedure .............................................

145

P33E2 BATT PACK OVER TEMP ...................

146

DTC Logic .............................................................

146

Diagnosis Procedure .............................................

146

P33E6 CELL CONTROLLER ...........................

147

DTC Logic .............................................................

147

Diagnosis Procedure .............................................

147

P33EA BATTERY HEATER RELAY ..............

152

DTC Logic ..............................................................

152

Diagnosis Procedure .............................................

152

P33EB TEMPERATURE SENSOR .................

154

DTC Logic ..............................................................

154

Diagnosis Procedure .............................................

154

Component Inspection ...........................................

155

P33ED BATTERY PARALLEL DIAGNOSIS ..

156

DTC Logic ..............................................................

156

Diagnosis Procedure .............................................

156

P33EE BATTERY HEATER CONTROL SYS-
TEM .................................................................

158

DTC Logic ..............................................................

158

Diagnosis Procedure .............................................

158

U1000 CAN COMM CIRCUIT .........................

160

Description .............................................................

160

DTC Logic ..............................................................

160

Diagnosis Procedure .............................................

160

HIGH VOLTAGE CIRCUIT ..............................

161

Diagnosis Procedure .............................................

161

LI-ION BATTERY INSULATION RESIS-
TANCE LOSS CHECK ....................................

163

Component Inspection ...........................................

163

LI-ION BATTERY HEATER SYSTEM INSU-
LATION RESISTANCE CHECK .....................

173

Diagnosis Procedure .............................................

173

POWER SUPPLY AND GROUND CIRCUIT ..

176

Diagnosis Procedure .............................................

176

SYMPTOM DIAGNOSIS ............................

179

REDUCTION IN THE DRIVING RANGE .........

179

Description .............................................................

179

Diagnosis Procedure .............................................

179

PERIODIC MAINTENANCE ......................

180

EV BATTERY USAGE REPORT ....................

180

Inspection ..............................................................

180

UNIT REMOVAL AND INSTALLATION ....

181

LI-ION BATTERY ............................................

181

Exploded View .......................................................

181

Removal and Installation .......................................

181

Inspection ..............................................................

188

UNIT DISASSEMBLY AND ASSEMBLY ..

190

LI-ION BATTERY ............................................

190

BATTERY PACK UPPER CASE .............................

190

BATTERY PACK UPPER CASE : Exploded View ..

190

EVB-4

BATTERY PACK UPPER CASE : Removal and
Installation .............................................................

191

LI-ION BATTERY CONTROLLER ...........................

200

LI-ION BATTERY CONTROLLER : Exploded
View .......................................................................

201

LI-ION BATTERY CONTROLLER : Removal and
Installation .............................................................

201

BATTERY JUNCTION BOX AND BATTERY HAR-
NESS ........................................................................

203

BATTERY JUNCTION BOX AND BATTERY
HARNESS : Exploded View ..................................

204

BATTERY JUNCTION BOX AND BATTERY
HARNESS : Disassembly and Assembly ..............

206

LI-ION BATTERY HEATER .....................................

213

LI-ION BATTERY HEATER : Exploded view .........

214

LI-ION BATTERY HEATER : Disassembly and
Assembly ...............................................................

215

LI-ION BATTERY HEATER RELAY UNIT ...............

219

LI-ION BATTERY HEATER RELAY UNIT : Ex-
ploded view ............................................................

220

LI-ION BATTERY HEATER RELAY UNIT : Disas-
sembly and Assembly ...........................................

221

FRONT MODULE STACK .......................................

222

FRONT MODULE STACK : Exploded View .........

222

FRONT MODULE STACK : Removal and Installa-
tion ........................................................................

226

FRONT MODULE STACK : Disassembly and As-
sembly ...................................................................

233

REAR MODULE STACK .........................................

238

REAR MODULE STACK : Exploded View ............

238

REAR MODULE STACK : Removal and Installa-
tion ........................................................................

241

REAR MODULE STACK : Disassembly and As-
sembly ...................................................................

248

Inspection ..............................................................

256

SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................

259

SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................

259

Li-ion Battery .........................................................

259

PRECAUTIONS

EVB-5

< PRECAUTION >

EVB

PRECAUTION

PRECAUTIONS

Precaution for Technicians Using Medical Electric

INFOID:0000000010501613

OPERATION PROHIBITION

WARNING:

• Parts with strong magnet is used in this vehicle.

• Technicians using a medical electric device such as pacemaker must never perform operation on the

vehicle, as magnetic field can affect the device function by approaching to such parts.

NORMAL CHARGE PRECAUTION

WARNING:

• If a technician uses a medical electric device such as an implantable cardiac pacemaker or an

implantable cardioverter defibrillator, the possible effects on the devices must be checked with the

device manufacturer before starting the charge operation.

• As radiated electromagnetic wave generated by on board charger at normal charge operation may

effect medical electric devices, a technician using a medical electric device such as implantable car-

diac pacemaker or an implantable cardioverter defibrillator must not enter the vehicle compartment

(including luggage room) during normal charge operation.

PRECAUTION AT TELEMATICS SYSTEM OPERATION

WARNING:

• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),

avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-

rior/exterior antenna.

• The electromagnetic wave of TCU might affect the function of the implantable cardiac pacemaker or

the implantable cardioverter defibrillator (ICD), when using the service, etc.

• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-

able cardioverter defibrillator (ICD), the electromagnetic wave of TCU might affect the function of the

device. The possible effects on the devices must be checked with the device manufacturer before

TCU use.

PRECAUTION AT INTELLIGENT KEY SYSTEM OPERATION

WARNING:

• If a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (ICD),

avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from inte-

rior/exterior antenna.

• The electromagnetic wave of intelligent key might affect the function of the implantable cardiac

pacemaker or the implantable cardioverter defibrillator (ICD), at door operation, at each request

switch operation, or at engine starting.

• If a technician uses other medical electric devices than implantable cardiac pacemaker or implant-

able cardioverter defibrillator (ICD), the electromagnetic wave of intelligent key might affect the func-

tion of the device. The possible effects on the devices must be checked with the device

manufacturer before intelligent key use.

Point to Be Checked Before Starting Maintenance Work

INFOID:0000000010501614

The high voltage system may starts automatically. It is required to check that the timer air conditioner

and timer charge (during EVSE connection) are not set before starting maintenance work.

NOTE:

If the timer air conditioner or timer charge (during EVSE connection) is set, the high voltage system starts

automatically even when the power switch is in OFF state.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000010121021

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

EVB-6

< PRECAUTION >

PRECAUTIONS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery and wait at least three minutes before performing any service.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010501615

When performing the procedure after removing cowl top cover, cover

the lower end of windshield with urethane, etc to prevent damage to

windshield.

Precaution for Removing 12V Battery

INFOID:0000000010501616

1. Check that EVSE is not connected.

NOTE:

If EVSE is connected, the air conditioning system may be automatically activated by the timer A/C func-

tion.

2. Turn the power switch OFF

→ ON → OFF. Get out of the vehicle. Close all doors (including back door).

3. Check that the charge status indicator lamp does not blink and wait for 5 minutes or more.

NOTE:

If the battery is removed within 5 minutes after the power switch is turned OFF, plural DTCs may be

detected.

4. Remove 12V battery within 1 hour after turning the power switch OFF

→ ON → OFF.

NOTE:

• The 12V battery automatic charge control may start automatically even when the power switch is in

OFF state.

• Once the power switch is turned ON

→ OFF, the 12V battery automatic charge control does not start for

approximately 1 hour.

CAUTION:

• After all doors (including back door) are closed, if a door (including back door) is opened before

battery terminals are disconnected, start over from Step 1.

• After turning the power switch OFF, if “Remote A/C” is activated by user operation, stop the air

conditioner and start over from Step 1.

PIIB3706J

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