Infiniti FX35, FX50 (S51). Manual — part 618

EC-13

C

D

E

F

G

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EC

A

N

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P

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

1004

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

1004

Special Repair Requirement . . . . . . . ...

1005

P1233, P2101 ELECTRIC THROTTLE CON-
TROL FUNCTION . . . . . . . . . . ...

1006

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

1006

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

1006

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

1006

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

1009

Special Repair Requirement . . . . . . . ...

1009

P1236, P2118 THROTTLE CONTROL MO-
TOR . . . . . . . . . . . . . . . .

1010

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

1010

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

1010

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

1010

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

1011

Special Repair Requirement . . . . . . . ...

1012

P1238, P2119 ELECTRIC THROTTLE CON-
TROL ACTUATOR . . . . . . . . . . .

1013

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

1013

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

1013

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

1014

Special Repair Requirement . . . . . . . ...

1014

P1239, P2135 TP SENSOR . . . . . . ...

1015

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

1015

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

1015

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

1015

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

1017

Special Repair Requirement . . . . . . . ...

1017

P1290, P2100, P2103 THROTTLE CONTROL
MOTOR RELAY . . . . . . . . . . . .

1018

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

1018

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

1018

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

1018

P1421 COLD START CONTROL . . . . ...

1020

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

1020

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

1020

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

1020

P1550 BATTERY CURRENT SENSOR . . .

1022

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

1022

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

1022

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

1023

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

1025

P1551, P1552 BATTERY CURRENT SEN-
SOR . . . . . . . . . . . . . . . .

1026

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

1026

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

1026

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

1027

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

1029

P1553 BATTERY CURRENT SENSOR . . .

1031

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

1031

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

1031

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

1032

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

1034

P1554 BATTERY CURRENT SENSOR . . .

1036

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

1036

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

1036

Component Function Check . . . . . . . .

1036

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

1037

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

1039

P1564 ASCD STEERING SWITCH . . . .

1041

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

1041

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

1041

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

1041

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

1043

P1564 ICC STEERING SWITCH . . . . .

1044

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

1044

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

1044

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

1044

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

1046

P1568 ICC FUNCTION . . . . . . . . ...

1047

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

1047

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

1047

P1572 ASCD BRAKE SWITCH . . . . . .

1048

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

1048

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

1048

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

1049

Component Inspection (ASCD Brake Switch) . .

1052

Component Inspection (Stop Lamp Switch) . .

1052

P1572 ICC BRAKE SWITCH . . . . . . .

1053

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

1053

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

1053

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

1054

Component Inspection (ICC Brake Switch) . . .

1057

Component Inspection (Stop Lamp Switch) . .

1058

P1574 ASCD VEHICLE SPEED SENSOR .

1059

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

1059

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

1059

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

1059

P1574 ICC VEHICLE SPEED SENSOR . .

1061

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

1061

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

1061

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

1061

P1606 VVEL CONTROL MODULE . . . .

1063

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

1063

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

1063

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

1063

P1607 VVEL CONTROL MODULE . . . .

1065

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

1065

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

1065

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

1065

P1608 VVEL SENSOR POWER SUPPLY . .

1067

EC-14

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

1067

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

1067

Special Repair Requirement . . . . . . . .

1068

P1715 INPUT SPEED SENSOR . . . . . .

1070

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

1070

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

1070

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

1070

P1805 BRAKE SWITCH . . . . . . . . .

1071

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

1071

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

1071

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

1071

Component Inspection (Stop Lamp Switch) . .

1072

P2122, P2123 APP SENSOR . . . . . . .

1074

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

1074

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

1074

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

1074

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

1076

Special Repair Requirement . . . . . . . .

1077

P2127, P2128 APP SENSOR . . . . . . .

1078

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

1078

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

1078

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

1079

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

1081

Special Repair Requirement . . . . . . . .

1082

P2138 APP SENSOR . . . . . . . . . .

1083

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

1083

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

1083

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

1084

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

1087

Special Repair Requirement . . . . . . . .

1087

P2A00, P2A03 A/F SENSOR 1 . . . . . ..

1088

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

1088

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

1088

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

1089

ASCD BRAKE SWITCH . . . . . . . . .

1092

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

1092

Component Function Check . . . . . . . .

1092

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

1092

Component Inspection (ASCD Brake Switch) . .

1093

ASCD INDICATOR . . . . . . . . . . .

1095

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

1095

Component Function Check . . . . . . . .

1095

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

1095

COOLING FAN . . . . . . . . . . . ...

1096

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

1096

Component Function Check . . . . . . . .

1096

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

1096

Component Inspection (Cooling Fan Motor) . .

1099

Component Inspection (Cooling Fan Relay) . .

1100

ELECTRICAL LOAD SIGNAL . . . . . .

1101

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

1101

Component Function Check . . . . . . . .

1101

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

1101

FUEL INJECTOR . . . . . . . . . . .

1103

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

1103

Component Function Check . . . . . . . .

1103

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

1103

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

1105

FUEL PUMP . . . . . . . . . . . . ...

1106

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

1106

Component Function Check . . . . . . . .

1106

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

1106

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

1108

ICC BRAKE SWITCH . . . . . . . . . .

1109

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

1109

Component Function Check . . . . . . . .

1109

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

1109

Component Inspection (ICC Brake Switch) . . .

1112

Component Inspection (ICC Brake Hold Relay) ..

1112

IGNITION SIGNAL . . . . . . . . . . ..

1114

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

1114

Component Function Check . . . . . . . .

1114

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

1114

Component Inspection (Ignition Coil with Power
Transistor) . . . . . . . . . . . . . . .

1117

Component Inspection (Condenser) . . . . .

1118

INFORMATION DISPLAY (ASCD) . . . . .

1119

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

1119

Component Function Check . . . . . . . .

1119

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

1119

MALFUNCTION INDICATOR LAMP . . . ..

1120

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

1120

Component Function Check . . . . . . . .

1120

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

1120

ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) . . . . . . . . . . . . ...

1121

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

1121

Component Function Check . . . . . . . .

1121

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

1121

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

1124

POSITIVE CRANKCASE VENTILATION . ...

1125

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

1125

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

1125

REFRIGERANT PRESSURE SENSOR . . .

1127

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

1127

Component Function Check . . . . . . . .

1127

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

1127

SNOW MODE SWITCH . . . . . . . . ..

1129

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

1129

Component Function Check . . . . . . . .

1129

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

1129

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

1131

EC-15

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ECU DIAGNOSIS INFORMATION . . ...

1132

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

1132

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

1132

Wiring Diagram - ENGINE CONTROL SYSTEM -

1150

Fail-safe . . . . . . . . . . . . . . . ..

1175

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

1178

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

1179

How to Set SRT Code . . . . . . . . . ..

1184

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

1186

VVEL CONTROL MODULE . . . . . . ...

1193

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

1193

Wiring Diagram - ENGINE CONTROL SYSTEM -

1197

SYMPTOM DIAGNOSIS . . . . . . ...

1223

ENGINE CONTROL SYSTEM SYMPTOMS ..

1223

Symptom Table . . . . . . . . . . . . ...

1223

NORMAL OPERATING CONDITION . . . .

1228

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

1228

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

1229

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

1229

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

1229

Precaution for Procedure without Cowl Top Cover

1229

Precautions For Xenon Headlamp Service . . .

1229

On Board Diagnostic (OBD) System of Engine
and A/T . . . . . . . . . . . . . . . .

1230

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

1230

PREPARATION . . . . . . . . . .

1234

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

1234

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

1234

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

1234

PERIODIC MAINTENANCE . . . . . .

1236

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

1236

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

1236

EVAP LEAK CHECK . . . . . . . . . .

1237

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

1237

REMOVAL AND INSTALLATION . . .

1239

EVAP CANISTER . . . . . . . . . . ...

1239

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

1239

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

1239

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

1240

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

1241

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

1241

Idle Speed . . . . . . . . . . . . . . ...

1241

Ignition Timing . . . . . . . . . . . . . .

1241

Calculated Load Value . . . . . . . . . .

1241

Mass Air Flow Sensor . . . . . . . . . . ..

1241

EC-16

< BASIC INSPECTION >

[VQ35HR]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000005236673

OVERALL SEQUENCE

DETAILED FLOW

JMBIA1416GB