Nissan Tiida C11. Instruction — part 646

EC-1234

< ECU DIAGNOSIS >

[K9K]

ECM

CRUISE CONTROL/SPEED LIMITER SUB FUNCTION

Test Condition: Engine Stopped and Ignition Switch ON

Test Condition: Engine at Idle

PROTECTION SUBFUNCTION

Test Condition: Engine Stopped and Ignition Switch ON

2

Compressor
engagement re-
quest

DMND LNK COMP

The ECM requests the IPDM E/R
(via CAN communication line) to
start the compressor
• ACTIVE: The CAN communica-

tion should not be suspected on
the Automatic Transmission,
IPDM E/R or Intelligent Key unit
or BCM system.
The Intelligent Key unit or BCM
should request the ECM to be en-
gaged.
The refrigerant pressure sensor
should not be suspected. Satis-
factory engine operating condi-
tions (engine coolant
temperature, engine load etc.).

• INACTIVE: One of the above

conditions has not been met.

NONE

3

Fast idle speed re-
quest

ACCEL IDL RQ

INACTIVE
or
ACTIVE
(Air conditioning is operate)

NONE

4

Refrigerant pres-
sure

RFRGERNT PRSS

Indicates the value in Bar for the re-
frigerant fluid in the system.
Default value: 0 Bar.

In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0530 REFRUGERANT PRES-
SURE SENSOR.

RFRGERNT FLUID V

0.1V < RFRGERNT FLUID V< 4.8V

5

Engine coolant
temperature

WATER TEMP

Indicates the engine coolant tem-
perature in

°

C.

In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0115 ECT SENSOR.

6

Vehicle speed

VEHICLE SPEED

0 km/h (mph)
Indicates the vehicle speed in km/h
(mph). This parameter is transmit-
ted by the “ABS actuator and elec-
tric unit (control unit)” or
combination meter via CAN com-
munication line.

Perform the trouble diagnosis for
CAN communication line. Perform
the trouble diagnosis for “ABS actu-
ator and electric unit (control unit)”
or combination meter.

Order

Function

Parameter

Display and notes

Trouble diagnosis

Order

Function

Parameter

Display and notes

Trouble diagnosis

1

Cruise control/speed
limiter

CRS CN/S LMTR

INACTIVE

In the event of a malfunction, per-
form the trouble diagnosis for DTC
P0575 ASCD STEERING SWITCH.

Order

Function

Parameter

Display and notes

Trouble diagnosis

1

Cruise control/speed
limiter

CRS CN/S LMTR

INACTIVE

In the event of a malfunction, perform
the trouble diagnosis for DTC P0575
ASCD STEERING SWITCH.

ECM

EC-1235

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Test Condition: Engine at Idle

Order

Function

Parameter

Display and notes

Trouble diagnosis

1

Immobilizer

ENGINE IMMOBI

Indicates the status of the immo-
bilizer system.
• INACTIVE: The ECM has rec-

ognized the immobilizer code
transmitted by the Intelligent
Key unit or BCM.

• ACTIVE: The ECM does not

recognize the immobilizer code
transmitted by the Intelligent
Key unit or BCM.

If ACTIVE, perform the trouble diag-
nosis for NATS.

2

Battery voltage

BATTERY VOLTAGE

12V < BATTERY VOLTAGE <
14.4V

In the event of a malfunction, perform
the trouble diagnosis for CHARGING
SYSTEM.

3

Code programmed

CODE PROGRAM

States whether the immobilizer
code has been programmed by
the computer or not.
• YES: Code programmed
• NO: Code not programmed by

the ECM.

If NO, replace ECM.

Order

Function

Parameter

Display and notes

Trouble diagnosis

1

Immobilizer

ENGINE IMMOBI

Indicates the status of the immobiliz-
er system.
• INACTIVE: The ECM has recog-

nized the immobilizer code trans-
mitted by the Intelligent Key unit or
BCM.

• ACTIVE: The ECM does not recog-

nize the immobilizer code transmit-
ted by the Intelligent Key unit or
BCM.

If ACTIVE, perform the trouble di-
agnosis for NATS.

2

Battery voltage

BATTERY VOLTAGE

13V < BATTERY VOLTAGE < 16V

In the event of a malfunction, per-
form the trouble diagnosis for
CHARGING SYSTEM.

3

Code programmed

CODE PROGRAM

States whether the immobilizer code
has been programmed by the com-
puter or not.
• YES: Code programmed
• NO: Code not programmed by the

ECM.

If NO, replace ECM.

EC-1236

< ECU DIAGNOSIS >

[K9K]

ECM

Wiring Diagram - ENGINE CONTROL SYSTEM -

INFOID:0000000001162696

ALBWA0168GB

ECM

EC-1237

< ECU DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

ALBWA0169GB