Infiniti EX35. Manual — part 1125

PCS

PCS-1

ELECTRICAL & POWER CONTROL

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SECTION

PCS

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CONTENTS

POWER CONTROL SYSTEM

IPDM E/R

FUNCTION DIAGNOSIS . . . . . . . ...

4

RELAY CONTROL SYSTEM . . . . . . . ..

4

System Diagram . . . . . . . . . . . . . ....

4

System Description . . . . . . . . . . . . ...

4

Component Parts Location . . . . . . . . . ....

6

POWER CONTROL SYSTEM . . . . . . . .

7

System Diagram . . . . . . . . . . . . . ....

7

System Description . . . . . . . . . . . . ...

7

Component Parts Location . . . . . . . . . ....

7

SIGNAL BUFFER SYSTEM . . . . . . . .

8

System Diagram . . . . . . . . . . . . . ....

8

System Description . . . . . . . . . . . . ...

8

Component Parts Location . . . . . . . . . ....

8

POWER CONSUMPTION CONTROL SYS-
TEM . . . . . . . . . . . . . . . . . .

9

System Diagram . . . . . . . . . . . . . ....

9

System Description . . . . . . . . . . . . ...

9

Component Parts Location . . . . . . . . . ..

10

DIAGNOSIS SYSTEM (IPDM E/R) . . . . . .

11

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

11

CONSULT-III Function (IPDM E/R) . . . . . . .

13

COMPONENT DIAGNOSIS . . . . . . .

16

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

16

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

16

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

16

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

16

B2098 IGNITION RELAY ON STUCK . . . ...

17

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

17

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

17

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

17

B2099 IGNITION RELAY OFF STUCK . . . ..

18

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

18

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

18

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

18

POWER SUPPLY AND GROUND CIRCUIT .

19

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

19

ECU DIAGNOSIS . . . . . . . . . . .

20

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) . . . .

20

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

20

Wiring Diagram - IPDM E/R - . . . . . . . . ..

27

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

30

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

32

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

33

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

33

Precaution for Procedure without Cowl Top Cover .

33

ON-VEHICLE REPAIR . . . . . . . . .

34

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) . . . .

34

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

34

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

34

POWER DISTRIBUTION SYSTEM

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

36

DIAGNOSIS AND REPAIR WORKFLOW . .

36

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

36

FUNCTION DIAGNOSIS . . . . . . . ..

39

POWER DISTRIBUTION SYSTEM . . . . ...

39

System Description . . . . . . . . . . . . ..

39

Component Parts Location . . . . . . . . . ..

41

Component Description . . . . . . . . . . ..

41

DIAGNOSIS SYSTEM (BCM) . . . . . . ...

42

PCS-2

COMMON ITEM . . . . . . . . . . . . . ....

42

COMMON ITEM : CONSULT-III Function (BCM -
COMMON ITEM) . . . . . . . . . . . . ....

42

INTELLIGENT KEY . . . . . . . . . . . . ...

43

INTELLIGENT KEY : CONSULT-III Function
(BCM - INTELLIGENT KEY) . . . . . . . . ...

43

COMPONENT DIAGNOSIS . . . . . .

47

U1000 CAN COMM CIRCUIT . . . . . . .

47

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

47

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

47

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

47

U1010 CONTROL UNIT (CAN) . . . . . . .

48

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

48

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

48

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

48

B2553 IGNITION RELAY . . . . . . . . ...

49

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

49

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

49

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

49

B260A IGNITION RELAY . . . . . . . . ..

51

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

51

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

51

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

51

B2614 ACC RELAY . . . . . . . . . . ...

53

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

53

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

53

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

53

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

54

B2614 ACC RELAY . . . . . . . . . . ...

55

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

55

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

55

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

55

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

56

B2615 BLOWER RELAY CIRCUIT . . . . ...

57

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

57

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

57

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

57

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

58

B2616 IGNITION RELAY CIRCUIT . . . . ...

59

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

59

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

59

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

59

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

60

B2618 BCM . . . . . . . . . . . . . .

61

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

61

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

61

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

61

B261A PUSH-BUTTON IGNITION SWITCH . .

62

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

62

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

62

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

62

POWER SUPPLY AND GROUND CIRCUIT . .

64

BCM . . . . . . . . . . . . . . . . . . ...

64

BCM : Diagnosis Procedure . . . . . . . . .

64

PUSH-BUTTON IGNITION SWITCH . . . . .

65

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

65

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

65

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

65

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

66

PUSH-BUTTON IGNITION SWITCH POSI-
TION INDICATOR . . . . . . . . . . . ..

67

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

67

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

67

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

67

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

68

POWER DISTRIBUTION SYSTEM . . . . ...

69

Wiring Diagram - PDS (POWER DISTRIBUTION
SYSTEM) - . . . . . . . . . . . . . . . ..

69

ECU DIAGNOSIS . . . . . . . . . ...

75

BCM (BODY CONTROL MODULE) . . . . ..

75

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

75

Wiring Diagram - BCM - . . . . . . . . . . ..

99

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

105

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

107

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

109

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) . . . .

111

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

111

Wiring Diagram - IPDM E/R - . . . . . . . .

118

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

121

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

123

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

124

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

124

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

124

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect . . . . . . . . .

124

Precaution for Procedure without Cowl Top Cover .

125

SYMPTOM DIAGNOSIS . . . . . . ...

126

POWER DISTRIBUTION SYSTEM . . . . ..

126

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

126

PUSH-BUTTON IGNITION SWITCH DOES
NOT OPERATE . . . . . . . . . . . .

128

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

128

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

128

PUSH-BUTTON IGNITION SWITCH POSI-
TION INDICATOR DOES NOT ILLUMINATE ..

129

PCS

PCS-3

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

129

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

129

ON-VEHICLE REPAIR . . . . . . . ...

130

BCM (BODY CONTROL MODULE) . . . . .

130

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

130

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

130

PUSH BUTTON IGNITION SWITCH . . . ...

131

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

131

PCS-4

< FUNCTION DIAGNOSIS >

[IPDM E/R]

RELAY CONTROL SYSTEM

FUNCTION DIAGNOSIS

RELAY CONTROL SYSTEM

System Diagram

INFOID:0000000003131982

System Description

INFOID:0000000003131983

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-
nals from various sensors and the request signals received from control units via CAN communication.

CAUTION:

IPDM E/R integrated relays cannot be removed.

JPMIA0975GB