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Home >> Nissan-Datsun >> 2021 >> Altima SL, FWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Power Control System >> Ecu Diagnosis Information >> IPDM E/R (Intelligent Power Distribution Module Engine Room) >> Reference Value >> Physical Values

Physical Values

Terminal

(Wire color)

Description

Ignition

switch

Condition

Value

(Approx).

+

-

Signal name

Input/

Output

1

(L)

Ground

Battery power supply

Input

OFF

--

Battery voltage

2

(R)

Ground

Battery power supply

Input

OFF

--

Battery voltage

4

(V)

Ground

Tail lamp LH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 1ST

Battery voltage

8

(BR)

Ground

EVAP canister vent control valve

Output

--

--

--

9

(L)

Ground

Horn relay control

Output

Horn is not activated

Battery voltage

Horn is activated

0 - 1 V

11

(LG)

Ground

Ignition relay-1 output

Output

ON

--

Battery voltage

12

(B)

Ground

Signal ground

Ground

--

--

--

16

(BG)

Ground

Reverse lamp power supply

Output

ON

Selector lever in any position other than R

0 - 1 V

Selector Lever in R

Battery voltage

17

(SB)

Ground

Tail lamp RH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 1ST

Battery voltage

22

(P)

Ground

CAN-Low

Input/Output

--

--

--

24

(L)

Ground

CAN-High

Input/Output

--

--

--

31

(B)

Ground

Signal ground 2

Ground

--

--

--

32

(V)

Ground

Push-button ignition switch signal

Input

--

Push-button ignition switch pressed

0 - 1 V

Push button ignition switch released

Battery voltage

33

(SB)

Ground

Front wiper motor stop position

Input

ON

Front wiper stop position

0 - 1 V

Any position other than front wiper stop position

Battery voltage

43

(LG)

Ground

ECM battery

Output

ON

--

Battery voltage

44

(SB)

Ground

ECM battery

Output

OFF

--

Battery voltage

45

(G)

Ground

Front wiper motor HI power supply

Output

ON

Front wiper switch OFF

0 - 1 V

Front wiper switch HI

Battery voltage

46

(L)

Ground

Fuel pump power supply

Output

ON

RUN

  • Approximately 1 second after ignition switch ON
  • Engine running

Battery voltage

ON

Approximately 1 second or more after ignition switch ON

0 - 1 V

47

(B)

Ground

Power ground

Ground

--

--

--

48

(Y)

Ground

Front wiper motor LO power supply

Output

ON

Front wiper switch OFF

0 - 1 V

Front wiper switch LO

Battery voltage

49 1

(R)

Ground

Daytime running lamp LH power supply

Output

Daytime running light system inactive

0 - 1 V

Daytime running light system active

Battery voltage

50

(L)

Ground

Headlamp LO LH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 2ND

Battery voltage

51 2

(G)

Ground

Front fog lamp LH power supply

Output

Front fog lamp switch OFF

0 - 1 V

Front fog lamp switch ON

Battery voltage

52

(Y)

Ground

Hood switch open signal

Input

Hood closed

Battery voltage

Hood open

0 - 1 V

53 3

(SB)

Ground

LED headlamp fail signal LH

Input

--

--

--

54

(LG)

Ground

Headlamp HI RH power supply

Output

Lighting switch other than HI and PASS

0 - 1 V

Lighting switch HI

Lighting switch PASS

Battery voltage

56

(BG)

Ground

Parking lamp LH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 1ST

Battery voltage

57 2

(W)

Ground

Front fog lamp RH power supply

Output

Front fog lamp switch OFF

Battery voltage

Front fog lamp switch ON

0 - 1 V

58 1

(Y)

Ground

Daytime running lamp RH power supply

Output

Daytime running light system inactive

0 - 1 V

Daytime running light system active

Battery voltage

59

(G)

Ground

Headlamp HI LH power supply

Output

Lighting switch other than HI and PASS

0 - 1 V

Lighting switch HI

Lighting switch PASS

Battery voltage

60 3

(L)

Ground

LED headlamp fail signal RH

Input

--

--

--

61

(GR)

Ground

Parking lamp RH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 1ST

Battery voltage

62

(SB)

Ground

Headlamp LO RH power supply

Output

Lighting switch OFF

0 - 1 V

Lighting switch 2ND

Battery voltage

65

(W)

Ground

A/C compressor power supply

Output

RUN

A/C switch OFF

0 - 1 V

A/C switch ON

(A/C compressor operating)

Battery voltage

66

(R)

Ground

Ignition coils power supply

Output

--

--

--

67

(BR)

Ground

Throttle control motor relay control

Input

ON -> OFF

0 - 1 V

Battery voltage

0 - 1 V

ON

0 - 1 V

70

(Y)

Ground

TCM ignition power supply

Output

OFF

--

0 - 1 V

ON

--

Battery voltage

71

(L)

Ground

Ignition relay-1 output

Output

ON

--

Battery voltage

72

(W)

Ground

Throttle control motor relay power supply

Supply

OFF

More than a few seconds after ignition switch OFF

0 - 1 V

ON

OFF

For a few seconds after ignition switch OFF

Battery voltage

73

(G)

Ground

ECM relay output

Output

ON

--

Battery voltage

75

(V)

Ground

ECM relay output

Output

ON

--

Battery voltage

76

(BR)

Ground

Fuel pump relay control

Input

ON

RUN

  • Approximately 1 second after ignition switch ON
  • Engine running

0 - 1 V

ON

Approximately 1 second or more after ignition switch ON

Battery voltage

78

(P)

Ground

ECM relay output

Output

ON

--

Battery voltage

79

(SB)

Ground

TCM R range sw signal

Input

--

--

--

81

(L)

Ground

ECM relay power supply

Input

OFF

--

Battery voltage

83

(SB)

Ground

Starter motor power supply

Output

OFF

0 - 1 V

START

Battery voltage

84 4

(W)

Ground

Cooling fan batt

--

--

--

--

85 4

(R)

Ground

Cooling fan relay-1 output

Output

--

--

--

86

(R)

Ground

Starter relay power supply

Input

ON

or

START

--

Battery voltage

92

(BG)

Ground

Starter relay control

Input

ON

or

START

--

Battery voltage

93

(BR)

Ground

ECM relay control

Input

--

--

--

98

(W)

Ground

A/C ECV control valve control

Output

--

--

--

103

(SB)

Ground

Hood switch close signal

Input

ON

Hood open

Battery voltage

Hood closed

0-1 V

106

(L)

Ground

Cooling fan control

Output

--

--

--

107 4

(L)

Ground

Cooling fan control

Output

--

--

--

1 : With LED headlamps and daytime running light system

2 : With front fog lamps

3 : With LED headlamps

4 : With PR25DD