Nissan Quest E52. Instruction — 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
×
B2098: IGN RELAY ON CIRC
×
B2099: IGN RELAY OFF CIRC
—
B209F: STR CUT OFF OPEN
—
B20A0: STR CUT OFF SHORT
—
B210B: STR CONT RLY ON CIRC
—
B210C: STR CONT RLY OFF CIRC
—
B210D: STARTER RLY ON CIRC
—
B210E: STARTER RLY OFF CIRC
—
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