Nissan Terrano r20e. Instruction — part 256

DIAGNOSTIC PROCEDURE 8

Perform initialization with CONSULT-II
Check the following harness connector
connection.

M720

Then initialize NATS. For the operation of
initialization, refer to “CONSULT-II opera-
tion instruction NATS”.
Does the security indicator blink just
after the initialization?

No

E

Yes

System is OK.
(The malfunction is caused
by improper connector
connection.)

CHECK GROUND CIRCUIT FOR
DONGLE UNIT.
Check continuity between dongle control
unit terminal

q

3

and ground.

Continuity should exist.

Yes

E

No

Repair harness.

CHECK INTERFACE CIRCUIT.
1. Check continuity between IMMU termi-

nal

q

2

and dongle control unit terminal

q

5

(Open circuit check)

Continuity should exist.

2. Check continuity between IMMU termi-

nal

q

2

and ground. (Short circuit check)

Continuity should not exist.

Yes

E

No

Repair harness.

Dongle unit is malfunctioning.
1. Replace dongle control unit.
2. Perform initialisation with CONSULT-II.

For the initialisation procedure, refer to
“CONSULT-II operation instruction NATS”.

YEL332D

YEL333D

YEL334D

H

H

H

NATS (Nissan Anti-Theft System)

Trouble Diagnoses (Cont’d)

EL-207

How to Replace NATS IMMU

NOTE:

I

If NATS IMMU is not installed correctly, NATS system will
not operate properly and SELF-DIAG RESULTS on CON-
SULT-II screen will show “LOCK MODE” or “CHAIN OF
IMMU-KEY”.

SEL096WA

NATS (Nissan Anti-Theft System)

EL-208

Components Parts and Harness Connector
Location

YEL335D

THEFT WARNING SYSTEM

EL-209

System Description

OPERATION FLOW

The SECURITY indicator can be operated by both the IMMU (for NATS) and the TCU (for Theft Warning). The
flow chart shows both operations.

NEL624

THEFT WARNING SYSTEM

EL-210