Nissan Quest E52. Manual - part 931

 

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Nissan Quest E52. Manual - part 931

 

 

PCS

IPDM E/R

PCS-21

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

57

(O)

Ground

Ignition relay power 
supply

Output

Ignition switch OFF or ACC

0 – 1 V

Ignition switch ON

6 – 16 V

58

(Y)

Ground

Ignition relay power 
supply

Output

Ignition switch OFF or ACC

0 – 1 V

Ignition switch ON

6 – 16 V

69

(W/B)

Ground

ECM relay control

Output

Ignition switch OFF
(More than a few seconds after turning igni-
tion switch OFF)

6 – 16 V

• Ignition switch ON
• Ignition switch OFF

(For a few seconds after turning ignition 
switch OFF)

0 – 1 V

70

(O)

Ground

Throttle control motor 
relay control

Output

Ignition switch OFF or ACC

6 – 16 V

Ignition switch ON

0 – 1 V

71

(P)

Ground

Cranking request

Output

Ignition switch OFF

0 – 1 V

Ignition switch 
ON

Selector lever P or N

Selector lever in any posi-
tion other than P or N

9 – 16 V

Engine running

72

(R/B)

Ground

Starter relay control 

Input

Ignition switch 
ON

Selector lever in any posi-
tion other than P or N

6 – 16 V

Selector lever P or N

0 – 1 V

75

(LG)

Ground

Oil pressure switch

Input

Engine stopped

0 – 1 V

Engine running

9 – 16 V

76

(GR)

Ground

Power generation 
command signal

Output

Ignition switch ON

6.6 V

40% is set on “ACTIVE TEST”, “ALTERNA-
TOR DUTY” of “ENGINE”

4.0 V

80% is set on “ACTIVE TEST”, “ALTERNA-
TOR DUTY” of “ENGINE”

1.3 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

JPMIA0001GB

JPMIA0002GB

JPMIA0003GB

PCS-22

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

77

(B)

Ground

Fuel pump relay
control

Output

• Approximately 1 second after turning the 

ignition switch ON

• Engine running

0 – 1 V

Approximately 1 second or more after turn-
ing the ignition switch ON

6 – 16 V

80

(B)

Ground

Starter motor 

Output

Other than at engine cranking

0 – 1 V

At engine cranking

6 – 16 V

83

(R)

Ground

Headlamp LO (RH)

Output

Lighting switch OFF

0 – 1 V

Lighting switch 2ND or AUTO (light is illumi-
nated)

9 – 16 V

84

(L)

Ground

Headlamp LO (LH)

Output

Lighting switch OFF

0 – 1 V

Lighting switch 2ND or AUTO (light is illumi-
nated)

9 – 16 V

86

(SB)

Ground

Front fog lamp (RH)

Output

Lighting switch 
2ND or AUTO 
(light is illumi-
nated)

Front fog lamp switch ON

9 – 16 V

Front fog lamp switch 
OFF

0 – 1 V

87

(Y)

Ground

Front fog lamp (LH)

Output

Lighting switch 
2ND or AUTO 
(light is illumi-
nated)

Front fog lamp switch ON

9 – 16 V

Front fog lamp switch 
OFF

0 – 1 V

88

(BR)

Ground

Ignition relay power 
supply

Output

Ignition switch OFF or ACC

0 – 1 V

Ignition switch ON

6 – 16 V

89

(V)

Ground

Headlamp HI (RH)

Output

Lighting switch 
2ND or AUTO 
(light is illumi-
nated)

Lighting switch HI or 
PASS

9 – 16 V

Lighting switch other than 
HI and PASS

0 – 1 V

90

(G)

Ground

Headlamp HI (LH)

Output

Lighting switch 
2ND or AUTO 
(light is illumi-
nated)

Lighting switch HI or 
PASS

9 – 16 V

Lighting switch other than 
HI and PASS

0 – 1 V

91

(LG)

Ground

Front combination 
lamp RH

Output

Lighting switch OFF

0 – 1 V

Lighting switch 1ST

9 – 16 V

92

(P)

Ground

Front combination 
lamp LH

Output

Lighting switch OFF

0 – 1 V

Lighting switch 1ST

9 – 16 V

93

(W)

Ground

Headlamp aiming mo-
tor RH

Output

Lighting switch OFF

0 – 1 V

Lighting switch 1ST

9 – 16 V

94

(O)

Ground

Headlamp aiming mo-
tor LH

Output

Lighting switch OFF

0 – 1 V

Lighting switch 1ST

9 – 16 V

99

(Y)

Ground

Ambient sensor 
ground

Output

Ignition switch ON

0 – 1 V

100

(V)

Ground

Ambient sensor

Input

Ignition switch ON

0 – 4.8 V

NOTE:

Changes depending to ambient 

temperature

101

(O)

Ground

Refrigerant pressure 
sensor ground

Output

Engine run-
ning

• Warm-up condition
• Idle speed

0 – 1 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

PCS

IPDM E/R

PCS-23

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

Fail-safe

INFOID:0000000009652855

CAN COMMUNICATION CONTROL

When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.

If No CAN Communication Is Available With ECM

If No CAN Communication Is Available With BCM

IGNITION RELAY MALFUNCTION DETECTION FUNCTION

• IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it. 
• IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation

coil circuit.

102

(G)

Ground

Refrigerant pressure 
sensor

Output

Engine run-
ning

• Warm-up condition
• Both A/C switch and 

blower fan motor 
switch ON (Compres-
sor operates)

1 – 4 V

103

(BR)

Ground

Refrigerant pressure 
sensor power supply

Input

Ignition switch ON

5 V

105

(R)

Ground

Daytime running light 
relay control

Output

Daytime running light deactivated

9 – 16 V

Daytime running light activated

0 – 1 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

Signal name

Input/ 

Output

+

Control part

Fail-safe operation

Cooling fan

• Turns ON the cooling fan relay-2 and the cooling fan relay-3 when the ignition switch is 

turned ON (Cooling fan operates at HI)

• Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3 

when the ignition switch is turned OFF (Cooling fan does not operate)

A/C compressor

A/C relay OFF

Alternator

Outputs the power generation command signal (PWM signal) 0%

Control part

Fail-safe operation

Headlamp

• Turns ON the headlamp low relay when the ignition switch is turned ON
• Turns OFF the headlamp low relay when the ignition switch is turned OFF
• Headlamp high relay OFF

• Parking  lamp
• License plate lamp
• Illumination
• Tail lamp
• Side marker lamp

• Turns ON the tail lamp relay when the ignition switch is turned ON
• Turns OFF the tail lamp relay when the ignition switch is turned OFF

Front wiper motor

• The status just before activation of fail-safe control is maintained until the ignition switch 

is turned OFF while the front wiper is operating at LO or HI speed.

• The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe 

control is activated while the front wiper is set in the AUTO mode and the front wiper motor 
is operating.

• Returns automatically wiper to stop position when ignition switch is turned ON if fail-safe 

control is activated while front wiper motor is operated and wiper stop in the other than 
stop position.

Front fog lamp

Front fog lamp relay OFF

Horn

Horn relay OFF

Ignition relay

The status just before activation of fail-safe is maintained.

Starter motor

Starter control relay OFF

PCS-24

< ECU DIAGNOSIS INFORMATION >

[IPDM E/R]

IPDM E/R

• If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay and daytime run-

ning light relay for 10 minutes to alert the user to the ignition relay malfunction when the ignition switch is
turned OFF.

FRONT WIPER PROTECTION FUNCTION

IPDM E/R detects front wiper stop position by a front wiper stop position signal.
When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.

NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.

STARTER MOTOR PROTECTION FUNCTION

IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.

DTC Index

INFOID:0000000009652856

NOTE:
• The details of time display are as follows.
- CRNT: A malfunction is detected now.
- PAST: A malfunction was detected in the past.
• IGN counter is displayed on FFD (Freeze Frame Data).
- The number is 0 when is detected now.
- The number increases like 1 

 2 ··· 38 

 39 after returning to the normal condition whenever IGN OFF 

ON.

- The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

×

: Applicable

Voltage judgment

IPDM E/R judgment

Operation

Ignition relay con-

tact side

Ignition relay exci-

tation coil side

ON

ON

Ignition relay ON normal

OFF

OFF

Ignition relay OFF normal

ON

OFF

Ignition relay ON stuck

• Detects DTC “B2098: IGN RELAY ON”
• Turns ON the tail lamp relay for 10 minutes

OFF

ON

Ignition relay OFF stuck

Detects DTC “B2099: IGN RELAY OFF”

Ignition switch

Front wiper switch

Front wiper stop position signal

ON

OFF

The front wiper stop position signal (stop position) cannot be input for 10 seconds.

ON

The front wiper stop position signal does not change for 10 seconds.

CONSULT display

Fail-safe

Reference

No DTC is detected.
further testing
may be required.

U1000: CAN COMM CIRCUIT

×

PCS-30

B2098: IGN RELAY ON CIRC

×

PCS-31

B2099: IGN RELAY OFF CIRC

PCS-33

B209F: STR CUT OFF OPEN

SEC-104

B20A0: STR CUT OFF SHORT

SEC-106

B210B: STR CONT RLY ON CIRC

SEC-108

B210C: STR CONT RLY OFF CIRC

SEC-109

B210D: STARTER RLY ON CIRC

SEC-111

B210E: STARTER RLY OFF CIRC

SEC-113

 

 

 

 

 

 

 

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