PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-17
< ECU DIAGNOSIS INFORMATION > [IPDM E/R]
C
D E
F
G H
I
J
K L
B
A
O P
N
552
(W)
Ground Ignition coil Output Ignition switch OFF
(For a few seconds after turning ignition
switch OFF) 0V
55
3
(G) • Ignition switch ON
• Ignition switch OFF
(More than a few seconds after turn-
ing ignition switch OFF) Battery voltage
56
(SB) Ground A/C compressor Output
Engine
running A/C compressor OFF 0V
A/C compressor ON
(A/C compressor is oper-
ating) Battery voltage
57
(R) Ground Electronic throttle control Output Ignition switch OFF
(For a few seconds after turning ignition
switch OFF) 0V
• Ignition switch ON
• Ignition switch OFF (More than a few seconds after turn-
ing ignition switch OFF) Battery voltage
58
(SB) Ground ECM battery Output Ignition switch OFF Battery voltage
59
(L) Ground Engine solenoid Output Ignition switch OFF
(For a few seconds after turning ignition
switch OFF) 0V
• Ignition switch ON
• Ignition switch OFF (More than a few seconds after turn-
ing ignition switch OFF) Battery voltage
60
(Y) Ground Injector #2 Output Ignition switch OFF 0V
Ignition switch ON Battery voltage
61
(Y) Ground
Transmission control mod-
ule OutputIgnition switch OFF 0V
Ignition switch ON Battery voltage
65
2
(BR) Ground Throttle control motor re-
lay OutputIgnition switch ON
→ OFF 0 -1.0V
↓
Battery voltage ↓
0V
65
3
(L) Ignition switch ON 0 - 1.0V
66
(LG) Ground N/P switch Input Ignition
switch ON CVT selector lever in P or
N position Battery voltage
CVT selector lever in any
position other than P or N
position 0V
69
(V) Ground Fuel pump relay Output • Approximately 1 second after turning
the ignition switch ON
• Engine running 0 - 1.0V
Approximately 1 second or more after
turning the ignition switch ON Battery voltage
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
Signal name Input/
Output
+ −
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS-18
< ECU DIAGNOSIS INFORMATION >[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DI
STRIBUTION MODULE ENGINE ROOM)
71
(SB) Ground Alternator C Output Ignition switch ON
6.3V
40% is set on “Active test”, “ALTERNA-
TOR DUTY” of “ENGINE”
3.8V
80% is set on “Active test”, “ALTERNA-
TOR DUTY” of “ENGINE”
1.4V
72
2
(V) Ground ECM relay
(Self shut-off) OutputIgnition switch OFF
(For a few seconds after turning ignition
switch OFF) Battery voltage
72
3
(Y) • Ignition switch ON
• Ignition switch OFF (More than a few seconds after turn-
ing ignition switch OFF) 0 - 1.5V
74
4
(BG) Ground Washer motor Output Ignition switch ON Battery voltage
74
5
(V)
75
(R) Ground Headlamp LO RH Output Ignition
switch ON Lighting switch OFF 0V
Lighting switch 2ND Battery voltage
76
(P) Ground Headlamp LO LH Output Ignition
switch ON Lighting switch OFF 0V
Lighting switch 2ND Battery voltage
78
(W) Ground Front fog lamp RH Output Ignition
switch ON Fog lamp switch OFF 0V
Fog lamp switch ON Battery voltage
79
(G) Ground Front fog lamp LH Output Ignition
switch ON Fog lamp switch OFF 0V
Fog lamp switch ON Battery voltage
80
(L) Ground Headlamp HI RH Output
Ignition
switch ON • Lighting switch HI
• Lighting switch PASS Battery voltage
Lighting switch OFF 0V
81
(Y) Ground Headlamp HI LH Output Ignition
switch ON • Lighting switch HI
• Lighting switch PASS Battery voltage
Lighting switch OFF 0V
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
Signal name Input/
Output
+ −
JPMIA0001GB
JPMIA0002GB
JPMIA0003GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS-20
< ECU DIAGNOSIS INFORMATION >[IPDM E/R]
IPDM E/R (INTELLIGENT POWER DI
STRIBUTION MODULE ENGINE ROOM)
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.
• If the ignition relay cannot turn OFF due to contact seiz ure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
NOTE:
The tail lamp turns OFF when the ignition switch is turned ON.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop posit ion by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 second activation and 20 second 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 IndexINFOID:0000000009461605
NOTE:
The details of TIME display are as follows.
• CRNT: The malfunctions that are detected now
• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It
increases like 0 → 1 → 2 ··· 38 → 39 after returning to the normal condition whenever IGN OFF → ON. It is
fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is
detected again in the process.
DTC Ignition switch Ignition relay Tail lamp relay
—ONON—
—OFFOFF—
B2098: IGN RELAY ON OFF ON ON (10 minutes)
B2099: IGN RELAY OFF ON OFF —
Ignition switch Front wiper switch Auto stop signal
ON OFF
Front wiper stop position signal cannot be
input 10 seconds.
ON The signal does not change for 10 seconds.
CONSULT display Fail-safe TIMENOTERefer to
No DTC is detected. Further testing may be required. — — — —
U1000: CAN COMM CIRCUIT ×CRNT 1 – 39 PCS-27
U1010: CONTROL UNIT (CAN) ×CRNT 1 – 39 PCS-28
B2098: IGN RELAY ON ×CRNT 1 – 39 PCS-29
B2099: IGN RELAY OFF — CRNT 1 – 39 PCS-30
B210B: INHIBIT relay ON stuck failure — CRNT 1 – 39 SEC-73
B210C: INHIBIT relay OFF stuck failure — CRNT 1 – 39 SEC-74
B210D: STARTER relay ON stuck failure — CRNT 1 – 39 SEC-76
B210E: STARTER relay OFF stuck failure — CRNT 1 – 39SEC-78
B210F: Interlock/NP switch ON stuck failure — CRNT 1 – 39 SEC-80
B2110: Interlock/NP switch OFF stuck failure — CRNT 1 – 39 SEC-82
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS
U1000 CAN COMM CIRCUITPCS-27
< DTC/CIRCUIT DIAGNOSIS > [IPDM E/R]
C
D E
F
G H
I
J
K L
B
A
O P
N
DTC/CIRCUIT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000009461607
Refer to
LAN-9, "CAN COMMUNICATION S YSTEM : System Description".
DTC LogicINFOID:0000000009461608
DTC DETECTION LOGIC
Diagnosis ProcedureINFOID:0000000009461609
1. PERFORM SELF DIAGNOSTIC RESULT
1. Turn ignition switch ON and wait for 2 second or more.
2. Check “SELF-DIAG RESULTS” of IPDM E/R.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-43, "Intermittent Incident"
.
CONSULT Display DTC Detectio n Condition Possible Cause
CAN COMM CIRCUIT
[U1000] When IPDM E/R cannot communicate with CAN com-
munication signal continuously for 2 seconds or more In CAN communication system, any item (or items) of
the following listed below is malfunctioning.
•Transmission
• Receiving (ECM)
• Receiving (BCM)
• Receiving (Combination meter)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS
B2098 IGNITION RELAY ON STUCKPCS-29
< DTC/CIRCUIT DIAGNOSIS > [IPDM E/R]
C
D E
F
G H
I
J
K L
B
A
O P
N
B2098 IGNITION RELAY ON STUCK
DTC LogicINFOID:0000000009941319
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the power supply position to start under the following conditions and wait for at least 1 second.
- CVT selector lever is in the P (Park) or N (Neutral) position.
- Depress the brake pedal
2. Check “Self-diagnostic result” with CONSULT.
Is DTC detected?
YES >> Refer to PCS-29, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009941320
1. PERFORM SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is display history of DTC B2098 CRNT?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Refer to GI-43, "Intermittent Incident"
.
CONSULT Display DTC Detectio n Condition Possible Cause
IGN RELAY ON
[B2098] The ignition relay ON is detected for 1 second at ignition
switch OFF
(CPU monitors the status at the contact and excitation
coil circuits of the ignition relay inside it) IPDM E/R
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS-30
< DTC/CIRCUIT DIAGNOSIS >[IPDM E/R]
B2099 IGNITION RELAY OFF STUCK
B2099 IGNITION RELAY OFF STUCK
DTC LogicINFOID:0000000009461616
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the power supply position to start under the following conditions and wait for at least 1 second.
- CVT selector lever is in the P (Park) or N (Neutral) position.
- Depress the brake pedal
2. Check “Self-diagnostic result” with CONSULT.
Is DTC detected?
YES >> Refer to PCS-30, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000009461617
1. PERFORM SELF DIAGNOSTIC RESULT
Perform Self Diagnostic Result of IPDM E/R using CONSULT.
Is display history of DTC B2099 CRNT?
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Refer to GI-43, "Intermittent Incident"
.
CONSULT Display DTC Detectio n Condition Possible Cause
IGN RELAY OFF
[B2099] The ignition relay OFF is detected for 1 second at
ignition switch ON
(CPU monitors the status at the contact and exci-
tation coil circuits of the ignition relay inside it) IPDM E/R
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS
PRECAUTIONSPCS-33
< PRECAUTION > [POWER DISTRIBUTION SYSTEM]
C
D E
F
G H
I
J
K L
B
A
O P
N
PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951597
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for WorkINFOID:0000000009461621
• When removing or disassembling each component, be ca reful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a shop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusabl e part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
-Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
PCS
SYSTEMPCS-37
< SYSTEM DESCRIPTION > [POWER DISTRIBUTION SYSTEM]
C
D E
F
G H
I
J
K L
B
A
O P
N
POWER SUPPLY POSITION CHANGE TABLE BY
PUSH-BUTTON IGNITION SWITCH OPERA-
TION
The power supply position changing operation can be performed with the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside
is contacted to push-button ignition switch, it is equivalent to the operations below.
• When starting the engine, the BCM monitors under the engine start conditions:
- Brake pedal operating condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Vehicle speed: 4 km/h (2.5 MPH) or more
Emergency stop operation
• Press and hold the push-button ignition switch for 2 seconds or more.
• Press the push-button ignition switch 3 times or more within 1.5 seconds. Power supply position
Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever position Brake pedal operation condition
OFF → ACC — Not depressed 1
OFF → ACC → ON — Not depressed 2
OFF → ACC → ON → OFF — Not depressed 3
OFF → START
ACC → START
ON → START P or N position Depressed 1
Engine is running → OFF — — 1
Power supply position Engine start/stop condition
Push-button ignition switch
operation frequency
Selector lever position Brake pedal operation condition
Engine is running → ACC — — Emergency stop operation
Engine stall return operation
while driving N position Not depressed 1
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM