NISSAN TIIDA 2007 Service Repair Manual

PCS
SIGNAL BUFFER SYSTEM
PCS-7
< FUNCTION DIAGNOSIS >[IPDM E/R]
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SIGNAL BUFFER SYSTEM
System DiagramINFOID:0000000001697584
System DescriptionINFOID:0000000001697585
IPDM E/R reads the status of the oil pressure switch and transmits the oil pressure switch signal to BCM via
CAN communication. Refer to LAN-13, "
System Description".
AWNIA0174GB

PCS-8
< FUNCTION DIAGNOSIS >[IPDM E/R]
POWER CONSUMPTION CONTROL SYSTEM
POWER CONSUMPTION CONTROL SYSTEM
System DiagramINFOID:0000000001697586
System DescriptionINFOID:0000000001697587
OUTLINE
 IPDM E/R incorporates a power consumption control function that reduces the power consumption accord-
ing to the vehicle status.
 IPDM E/R changes its status (control mode) with the sleep wake up signal received from BCM via CAN com-
munication.
Normal mode (wake-up)- CAN communication is normally performed with other control units.
- Individual unit control by IPDM E/R is normally performed.
Low power consumption mode (sleep)- Low power consumption control is active.
- CAN transmission is stopped.
SLEEP MODE ACTIVATION
 IPDM E/R judges that the sleep-ready conditions are fulfilled when the ignition switch is OFF and none of the
conditions below are present. Then it transmits a sleep-ready signal (ready) to BCM via CAN communica-
tion.
- Front wiper fail-safe operation
- Outputting signals to actuators
- Switches or relays operating
- Auto active test is starting
- Emergency OFF
- Output requests are being received from control units via CAN communication.
 IPDM E/R stops CAN communication and enters the low power consumption mode when it receives a sleep
wake up signal (sleep) from BCM and the sleep-ready conditions are fulfilled.
WAKE-UP OPERATION
 IPDM E/R changes from the low power consumption mode to the normal mode when it receives a sleep
wake-up signal (wake up) from BCM or any of the following conditions is fulfilled. In addition, it transmits a
sleep-ready signal (not-ready) to BCM via CAN communication to report the CAN communication start.
- Ignition switch ON
- An output request is received from a control unit via CAN communication.
ALCIA0030GB

PCS
POWER CONSUMPTION CONTROL SYSTEM
PCS-9
< FUNCTION DIAGNOSIS >[IPDM E/R]
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Component Parts LocationINFOID:0000000001697588
1. IPDM E/R E42, E43, E44, E45, E46,
E47, E482. Combination meter M24 3. BCM (view with instrument panel re-
moved) M18, M19, M20
ALMIA0314ZZ

PCS-10
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
Diagnosis DescriptionINFOID:0000000001697589
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation.
 Oil pressure low/coolant pressure high warning indicator
 Oil pressure gauge
 Rear window defogger
 Front wipers
 Tail, license and parking lamps
 Front fog lamps
 Headlamps (Hi, Lo)
 A/C compressor (magnetic clutch)
 Cooling fan
Operation Procedure
1. Close the hood and front door RH, and lift the wiper arms from the windshield (to prevent windshield dam-
age due to wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield before hand.
2. Turn ignition switch OFF.
3. Turn the ignition switch ON and, within 20 seconds, press the front door switch LH 10 times. Then turn the
ignition switch OFF.
4. Turn the ignition switch ON within 10 seconds. After that the horn sounds once and the auto active test
starts.
5. After a series of the following operations is repeated 3 times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway through test, turn ignition switch OFF.
CAUTION:
• If auto active test mode cannot be actuated, check door switch system. Refer to DLK-65, "
DRIVER
SIDE : Description" (with Intelligent Key system), DLK-499, "DRIVER SIDE : Description" (without
Intelligent Key system).
 Do not start the engine.
Inspection in Auto Active Test Mode

PCS
DIAGNOSIS SYSTEM (IPDM E/R)
PCS-11
< FUNCTION DIAGNOSIS >[IPDM E/R]
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When auto active test mode is actuated, the following 7 steps are repeated 3 times.
Concept of auto active test
Operation
sequenceInspection Location Operation
1 Rear window defogger 10 seconds
2 Front wipers LO for 5 seconds → HI for 5 seconds
3 Tail, license and parking lamps 10 seconds
3 Front fog lamps 10 seconds
4 Headlamps LO for 10 seconds → HI on-off for 5 seconds
5 A/C compressor (magnet clutch) ON ⇔ OFF 5 times
6 Cooling fan 10 seconds
WKIA5988E
WKIA5163E

PCS-12
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
 IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communica-
tion. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto
active test starts successfully.
 The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated.
Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause
Oil pressure low warning indicator does not operatePerform auto active test.
Does the oil pressure low/
coolant temperature high
warning indicator operate?YES IPDM E/R signal input cir-
cuit
 ECM signal input circuit
 CAN communication signal
between ECM and combi-
nation meter
NO CAN communication signal
between IPDM E/R, BCM
and combination meter
Rear window defogger does not operatePerform auto active test.
Does the rear window defog-
ger operate?YES BCM signal input circuit
NO Harness or connector be-
tween A/C and AV switch
assembly and AV control
unit
 CAN communication signal
between BCM and IPDM E/
R
Any of the following components do not operate
 Front wipers
Tail lamps
 License plate lamps
 Parking lamps
Front fog lamps
 Headlamps (Hi, Lo)Perform auto active test.
Does the applicable system
operate?YES BCM signal input system
NO Lamp or front wiper motor
malfunction
 Lamp or front wiper motor
ground circuit
 Harness or connector be-
tween IPDM E/R and appli-
cable system
 IPDM E/R (integrated relay
malfunction)
A/C compressor does not operatePerform auto active test.
Does the A/C compressor op-
erate?YES BCM signal input circuit
 CAN communication signal
between BCM and ECM
 CAN communication signal
between ECM and IPDM E/
R
NO Magnetic clutch malfunction
 Harness or connector be-
tween IPDM E/R and mag-
netic clutch
 IPDM E/R (integrated relay
malfunction)
Cooling fan does not operatePerform auto active test.
Does the cooling fan operate?YES ECM signal input circuit
 CAN communication signal
between ECM and IPDM E/
R
NO Cooling fan motor malfunc-
tion
 Harness or connector be-
tween IPDM E/R and cool-
ing fan
 IPDM E/R (integrated relay
malfunction)

PCS
DIAGNOSIS SYSTEM (IPDM E/R)
PCS-13
< FUNCTION DIAGNOSIS >[IPDM E/R]
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CONSULT - III Function (IPDM E/R)INFOID:0000000001697590
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with IPDM E/R.
SELF DIAGNOSTIC
Refer to PCS-28, "DTCIndex".
DATA MONITOR
Monitor item
Diagnosis mode Description
ECU Identification Allows confirmation of IPDM E/R part number.
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item
[Unit]MAIN SIG-
NALSDescription
MOTOR FAN REQ
[1/2/3/4]×Displays the status of the cooling fan speed request signal received from ECM via
CAN communication.
A/C COMP REQ
[OFF/ON]×Displays the status of the A/C request signal received from AV control unit via
CAN communication.
TAIL&CLR REQ
[OFF/ON]×Displays the status of the position light request signal received from BCM via CAN
communication.
HL LO REQ
[OFF/ON]×Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[OFF/ON]×Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[OFF/ON]×Displays the status of the front fog lamp request signal received from BCM via
CAN communication.
HL WASHER REQ
[OFF/ON]NOTE:
This item is displayed, but cannot be monitored.
FR WIP REQ
[STOP/1LOW/LOW/HI]×Displays the status of the front wiper request signal received from BCM via CAN
communication.
WIP AUTO STOP
[STOP P/ACT P]×Displays the status of the front wiper auto stop signal judged by IPDM E/R.
WIP PROT
[OFF/Block]×Displays the status of the front wiper fail-safe operation judged by IPDM E/R.
ST RLY REQ
[OFF/ON]Displays the status of the starter request signal received from ECM via CAN com-
munication.
IGN RLY
[OFF/ON]×Displays the status of the ignition relay judged by IPDM E/R.
RR DEF REQ
[OFF/ON]×Displays the status of the rear defogger request signal received from AV control
unit via CAN communication.
OIL P SW
[OPEN/CLOSE]Displays the status of the oil pressure switch judged by IPDM E/R.
DTRL REQ
[OFF]NOTE:
This item is displayed, but cannot be monitored.
HOOD SW
[OPEN/CLOSE]NOTE:
This item is displayed, but cannot be monitored.

PCS-14
< FUNCTION DIAGNOSIS >[IPDM E/R]
DIAGNOSIS SYSTEM (IPDM E/R)
ACTIVE TEST
Te s t i t e m
THFT HRN REQ
[OFF/ON]Displays the status of the theft warning horn request signal received from BCM
via CAN communication.
HORN CHIRP
[OFF/ON]Displays the status of the horn reminder signal received from BCM via CAN com-
munication. Monitor Item
[Unit]MAIN SIG-
NALSDescription
Test item Operation Description
REAR DEFOGGEROFF OFF
ON Operates rear window defogger relay.
FRONT WIPEROFF OFF
LO Operates the front wiper relay.
HI Operates the front wiper relay and front wiper high relay.
HEAD LAMP WASHER ON —
MOTOR FAN1OFF
2OFF
3 Operates the cooling fan relay.
4 Operates the cooling fan relay.
EXTERNAL LAMPSOFF OFF
TAIL Operates the tail lamp relay.
LO Operates the headlamp low relay.
HIOperates the headlamp low relay and the headlamp high relay ON/OFF at 1
second intervals.
FOG Operates the front fog lamp relay
HORN ON Operates horn relay for 20 ms.

PCS
U1000 CAN COMM CIRCUIT
PCS-15
< COMPONENT DIAGNOSIS >[IPDM E/R]
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COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000001697591
Refer to LAN-13, "System Description".
DTC LogicINFOID:0000000001697592
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
Diagnosis ProcedureINFOID:0000000001697593
1. PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “SELF-DIAG RESULTS” of IPDM E/R.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-14, "CAN Communication Control Circuit".
NO >> Refer to GI-55, "
Intermittent Incident".
DTCCONSULT-III display
descriptionDTC Detection Condition Possible cause
U1000 CAN COMM CIRCUITWhen IPDM E/R cannot communicate CAN
communication signal continuously for 2
seconds or moreIn CAN communication system, any item (or items)
of the following listed below is malfunctioning.
 Receiving (TCM)
 Receiving (ECM)
 Receiving (BCM)
 Receiving (Combination meter)

PCS-16
< COMPONENT DIAGNOSIS >[IPDM E/R]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
Diagnosis ProcedureINFOID:0000000001697594
1. CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit.
NO >> GO TO 2
2. CHECK BATTERY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R.
3. Check voltage between IPDM E/R harness connectors and
ground.
Is the measurement value normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES >> Inspection End.
NO >> Repair or replace harness.
Terminal No. Signal name Fusible link No.
1 Battery A, D
2 Battery C
12 Ignition switch ON or START H
Terminals Ignition switch position
(+)
(−) OFF ON START
Connector Terminal
E42 (A)1
GroundBattery
voltageBattery
voltageBattery
voltage
2Battery
voltageBattery
voltageBattery
voltage
E43 (B) 12 0VBattery
voltageBattery
voltage
AWMIA0023ZZ
IPDM E/R
GroundContinuity
Connector Terminal
E46 (A) 38
Ye s
E48 (B) 59
AWMIA0024ZZ