Nissan Sentra. Manual — part 326

DMS-76

< REMOVAL AND INSTALLATION >

[SPORT MODE (CVT)]

SPORT MODE SWITCH

REMOVAL AND INSTALLATION

SPORT MODE SWITCH

Removal and Installation

INFOID:0000000009755948

REMOVAL

1. Remove instrument lower panel LH. Refer to

IP-14, "Exploded View"

.

2. Remove SPORT mode switch.

INSTALLATION

Installation is in the reverse order of removal.

EC-1

ENGINE

C

D

E

F

G

H

I

J

K

L

M

SECTION

EC

A

EC

N

O

P

CONTENTS

ENGINE CONTROL SYSTEM

MRA8DE

PRECAUTION . . . . . . . . . . . ...

9

PRECAUTIONS . . . . . . . . . . . . ...

9

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

9

Precaution for Procedure without Cowl Top Cover . ..

9

On Board Diagnostic (OBD) System of Engine
and CVT . . . . . . . . . . . . . . . . ....

9

General Precautions . . . . . . . . . . . ...

10

PREPARATION . . . . . . . . . . ...

13

PREPARATION . . . . . . . . . . . . ..

13

Special Service Tools . . . . . . . . . . . ..

13

Commercial Service Tools . . . . . . . . . ..

13

SYSTEM DESCRIPTION . . . . . . . .

15

COMPONENT PARTS . . . . . . . . . ...

15

ENGINE CONTROL SYSTEM . . . . . . . . ...

15

ENGINE CONTROL SYSTEM :
Component Parts Location . . . . . . . . .

15

Accelerator Pedal Position Sensor . . . . . . ..

19

Air Fuel Ratio (A/F) Sensor 1 . . . . . . . . ..

19

ASCD Steering Switch . . . . . . . . . . .

20

Battery Current Sensor (with Battery Temperature
Sensor) . . . . . . . . . . . . . . . . .

20

Camshaft Position Sensor (PHASE) . . . . . ...

21

Clutch Pedal Position Switch . . . . . . . . ..

21

Crankshaft Position Sensor (POS) . . . . . . ..

21

Cooling Fan . . . . . . . . . . . . . . . .

21

ECM . . . . . . . . . . . . . . . . . .

22

Electric Throttle Control Actuator . . . . . . .

22

Engine Coolant Temperature Sensor . . . . . ..

23

Engine Oil Pressure Sensor . . . . . . . . .

23

Engine Oil Temperature Sensor . . . . . . . ..

24

EVAP Canister Purge Volume Control Solenoid
Valve . . . . . . . . . . . . . . . . . ...

24

EVAP Canister Vent Control Valve . . . . . . ..

24

EVAP Control System Pressure Sensor . . . . ..

25

Exhaust Valve Timing Control Position Sensor . ...

25

Exhaust Valve Timing Control Solenoid Valve . .

25

Fuel Injector . . . . . . . . . . . . . . . .

25

Fuel Level Sensor Unit, Fuel Filter and Fuel Pump
Assembly . . . . . . . . . . . . . . . . .

26

Heated Oxygen Sensor 2 . . . . . . . . . .

26

Ignition Coil with Power Transistor . . . . . . ..

27

Intake Valve Timing Control Solenoid Valve . . ...

27

Intake Manifold Runner Control Valve . . . . . .

27

Intake Manifold Tuning Valve . . . . . . . . ..

28

Knock Sensor . . . . . . . . . . . . . . ..

28

Mass Air Flow Sensor (with Intake Air Tempera-
ture Sensor) . . . . . . . . . . . . . . . .

28

Park/Neutral Position Switch . . . . . . . . ...

29

Refrigerant Pressure Sensor . . . . . . . . ...

29

Stop Lamp Switch & Brake Pedal Position Switch .

29

Transmission Range Switch . . . . . . . . .

29

STRUCTURE AND OPERATION . . . . . .

30

Positive Crankcase Ventilation . . . . . . . .

30

On Board Refueling Vapor Recovery (ORVR) . .

31

SYSTEM . . . . . . . . . . . . . . .

32

ENGINE CONTROL SYSTEM . . . . . . . . ...

32

ENGINE CONTROL SYSTEM : System Descrip-
tion . . . . . . . . . . . . . . . . . . ...

32

ENGINE CONTROL SYSTEM : Fail Safe . . . ..

33

MULTIPORT FUEL INJECTION SYSTEM . . . .

35

MULTIPORT FUEL INJECTION SYSTEM : Sys-
tem Description . . . . . . . . . . . . . .

35

ELECTRIC IGNITION SYSTEM . . . . . . . . .

38

ELECTRIC IGNITION SYSTEM : System De-
scription . . . . . . . . . . . . . . . . ...

38

INTAKE VALVE TIMING CONTROL . . . . . . .

39

INTAKE VALVE TIMING CONTROL : System De-
scription . . . . . . . . . . . . . . . . ...

39

EC-2

EXHAUST VALVE TIMING CONTROL . . . . ....

41

EXHAUST VALVE TIMING CONTROL : System
Description . . . . . . . . . . . . . . . ..

41

INTAKE MANIFOLD RUNNER CONTROL . . . ..

43

INTAKE MANIFOLD RUNNER CONTROL : Sys-
tem Description . . . . . . . . . . . . . ...

43

INTAKE MANIFOLD TUNING SYSTEM . . . . ...

43

INTAKE MANIFOLD TUNING SYSTEM : System
Description . . . . . . . . . . . . . . . ..

43

ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE . . . . . . . . . . . ..

44

ENGINE PROTECTION CONTROL AT LOW EN-
GINE OIL PRESSURE : System Description . . .

44

FUEL FILLER CAP WARNING SYSTEM . . . . .

45

FUEL FILLER CAP WARNING SYSTEM : System
Description . . . . . . . . . . . . . . . ..

45

AIR CONDITIONING CUT CONTROL . . . . . ..

46

AIR CONDITIONING CUT CONTROL : System
Description . . . . . . . . . . . . . . . ..

46

COOLING FAN CONTROL . . . . . . . . . ...

47

COOLING FAN CONTROL : System Description ...

47

STARTER MOTOR DRIVE CONTROL . . . . . .

48

STARTER MOTOR DRIVE CONTROL : System
Description . . . . . . . . . . . . . . . ..

48

EVAPORATIVE EMISSION SYSTEM . . . . . ...

49

EVAPORATIVE EMISSION SYSTEM : System
Description . . . . . . . . . . . . . . . ..

49

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

51

AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : System Description . . . . . . . . . ...

51

CAN COMMUNICATION . . . . . . . . . . ...

52

CAN COMMUNICATION : System Description . ..

52

ECO MODE CONTROL . . . . . . . . . . ....

52

ECO MODE CONTROL : System Description . ....

52

SPORT MODE CONTROL . . . . . . . . . ....

52

SPORT MODE CONTROL : System Description ...

53

OPERATION . . . . . . . . . . . . . ..

54

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ...

54

AUTOMATIC SPEED CONTROL DEVICE (AS-
CD) : Switch Name and Function . . . . . . ...

54

ON BOARD DIAGNOSTIC (OBD) SYSTEM . .

55

Diagnosis Description . . . . . . . . . . . .

55

GST (Generic Scan Tool) . . . . . . . . . ...

55

DIAGNOSIS SYSTEM (ECM) . . . . . . .

56

DIAGNOSIS DESCRIPTION . . . . . . . . . .

56

DIAGNOSIS DESCRIPTION : 1st Trip Detection
Logic and Two Trip Detection Logic . . . . . ...

56

DIAGNOSIS DESCRIPTION : DTC and Freeze
Frame Data . . . . . . . . . . . . . . . .

56

DIAGNOSIS DESCRIPTION : Counter System . ..

57

DIAGNOSIS DESCRIPTION : Driving Pattern . .

60

DIAGNOSIS DESCRIPTION : System Readiness
Test (SRT) Code . . . . . . . . . . . . . .

61

DIAGNOSIS DESCRIPTION : Permanent Diag-
nostic Trouble Code (Permanent DTC) . . . . ..

62

DIAGNOSIS DESCRIPTION : Malfunction Indica-
tor Lamp (MIL) . . . . . . . . . . . . . .

63

On Board Diagnosis Function . . . . . . . . .

63

CONSULT Function . . . . . . . . . . . .

66

ECU DIAGNOSIS INFORMATION . . . .

77

ECM . . . . . . . . . . . . . . . . ...

77

Reference Value . . . . . . . . . . . . . .

77

Fail Safe . . . . . . . . . . . . . . . . .

90

DTC Inspection Priority Chart . . . . . . . ...

93

DTC Index . . . . . . . . . . . . . . . ..

94

Test Value and Test Limit . . . . . . . . . ...

97

WIRING DIAGRAM . . . . . . . . ...

105

ENGINE CONTROL SYSTEM . . . . . . ..

105

Wiring Diagram . . . . . . . . . . . . . .

105

BASIC INSPECTION . . . . . . . . .

126

DIAGNOSIS AND REPAIR WORKFLOW . .

126

Work Flow . . . . . . . . . . . . . . . .

126

Diagnostic Work Sheet . . . . . . . . . . .

129

BASIC INSPECTION . . . . . . . . . .

131

Work Procedure . . . . . . . . . . . . .

131

ADDITIONAL SERVICE WHEN REPLACING
ECM . . . . . . . . . . . . . . . . ..

135

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

135

Work Procedure . . . . . . . . . . . . .

135

VIN REGISTRATION . . . . . . . . . .

137

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

137

Work Procedure . . . . . . . . . . . . .

137

ACCELERATOR PEDAL RELEASED POSI-
TION LEARNING . . . . . . . . . . . ..

138

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

138

Work Procedure . . . . . . . . . . . . .

138

THROTTLE VALVE CLOSED POSITION
LEARNING . . . . . . . . . . . . . ...

139

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

139

Work Procedure . . . . . . . . . . . . .

139

IDLE AIR VOLUME LEARNING . . . . . ...

140

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

140

Work Procedure . . . . . . . . . . . . .

140

MIXTURE RATIO SELF-LEARNING VALUE
CLEAR . . . . . . . . . . . . . . . ..

142

EC-3

C

D

E

F

G

H

I

J

K

L

M

EC

A

N

O

P

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

142

Work Procedure . . . . . . . . . . . . .

142

FUEL PRESSURE . . . . . . . . . . .

143

Work Procedure . . . . . . . . . . . . .

143

HOW TO SET SRT CODE . . . . . . . .

145

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

145

SRT Set Driving Pattern . . . . . . . . . .

146

Work Procedure . . . . . . . . . . . . .

148

HOW TO ERASE PERMANENT DTC . . . ..

151

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

151

Work Procedure (Group A) . . . . . . . . ...

152

Work Procedure (Group B) . . . . . . . . ...

154

DTC/CIRCUIT DIAGNOSIS . . . . . ...

157

TROUBLE DIAGNOSIS - SPECIFICATION
VALUE . . . . . . . . . . . . . . . ..

157

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

157

Component Function Check . . . . . . . . ..

157

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

158

POWER SUPPLY AND GROUND CIRCUIT .

164

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

164

U0101 CAN COMM CIRCUIT . . . . . . ...

168

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

168

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

168

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

168

U1001 CAN COMM CIRCUIT . . . . . . ...

169

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

169

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

169

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

169

P0011 IVT CONTROL . . . . . . . . . ..

170

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

170

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

171

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

172

P0014 EVT CONTROL . . . . . . . . . .

173

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

173

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

174

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

175

P0031, P0032 A/F SENSOR 1 HEATER . . .

176

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

176

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

176

Component Inspection (A/F Sensor 1 Heater) . ..

177

P0037, P0038 HO2S2 HEATER . . . . . ...

178

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

178

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

178

Component Inspection (HO2S Heater) . . . . .

179

P0075 IVT CONTROL SOLENOID VALVE . .

180

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

180

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

180

Component Inspection (IVT Control Solenoid
Valve) . . . . . . . . . . . . . . . . .

181

P0078 EVT CONTROL SOLENOID VALVE ...

183

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

183

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

183

Component Inspection (EVT Control Solenoid
Valve) . . . . . . . . . . . . . . . . .

184

P0101, P0102, P0103 MAF SENSOR . . . .

186

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

186

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

187

Component Inspection (MAF Sensor) . . . . ...

188

P0111 IAT SENSOR . . . . . . . . . ...

192

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

192

Component Function Check . . . . . . . . ..

193

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

193

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

193

P0112, P0113 IAT SENSOR . . . . . . ...

194

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

194

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

194

Component Inspection (IAT Sensor) . . . . . .

195

P0116 ECT SENSOR . . . . . . . . . ..

196

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

196

Component Function Check . . . . . . . . ..

197

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

197

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

197

P0117, P0118 ECT SENSOR . . . . . . ..

198

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

198

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

198

Component Inspection (ECT Sensor) . . . . .

199

P0122, P0123 TP SENSOR . . . . . . .

200

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

200

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

200

Component Inspection (TP Sensor) . . . . . ..

202

P0125 ECT SENSOR . . . . . . . . . ..

203

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

203

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

203

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

204

P0127 IAT SENSOR . . . . . . . . . ...

205

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

205

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

205

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

206

P0128 THERMOSTAT FUNCTION . . . . .

207

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

207

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

208

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

208

P0130 A/F SENSOR 1 . . . . . . . . .

210

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

210

Component Function Check . . . . . . . . ..

211

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

211

P0131 A/F SENSOR 1 . . . . . . . . .

214

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

214

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

215