Nissan Tiida C11. Manual - part 1107

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 
sequence

Inspection 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 operate

Perform 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 operate

Perform 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 operate

Perform 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 operate

Perform 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, "DTC Index"

.

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-

NALS

Description

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

Test item

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-

NALS

Description

Test item

Operation

Description

REAR DEFOGGER

OFF

OFF

ON

Operates rear window defogger relay.

FRONT WIPER

OFF

OFF

LO

Operates the front wiper relay.

HI

Operates the front wiper relay and front wiper high relay.

HEAD LAMP WASHER

ON

—

MOTOR FAN

1

OFF

2

OFF

3

Operates the cooling fan relay.

4

Operates the cooling fan relay.

EXTERNAL LAMPS

OFF

OFF

TAIL

Operates the tail lamp relay.

LO

Operates the headlamp low relay.

HI

Operates 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.