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Nissan Pathfinder. Instruction - part 1054

P1614 CHAIN OF IMMU-KEY

SEC-79

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

SEC

P1614 CHAIN OF IMMU-KEY

DTC Logic

INFOID:0000000009175975

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE 1

1. Contact Intelligent Key back side to push-button ignition switch.

2. Check DTC in “Self-Diagnostic Result” mode of “ENGINE” using CONSULT.
Is DTC detected?

YES

>> GO TO

SEC-79, "Diagnosis Procedure"

>> GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE 2

1. Press the push-button ignition switch.

2. Check DTC in “Self-Diagnostic Result” mode of “ENGINE” using CONSULT.
Is DTC detected?

YES

>> GO TO

SEC-79, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175976

Regarding Wiring Diagram information, refer to

SEC-43, "Wiring Diagram"

CONNECTOR INSPECTION

1. Disconnect BCM and NATS antenna amp.

2. Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace as necessary.

CHECK NATS ANTENNA AMP. CIRCUIT

1. Disconnect BCM connector and NATS antenna amp. connector.

2. Check continuity between BCM harness connector and NATS antenna amp. harness connector.

3. Check continuity between BCM harness connector and ground.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1614

CHAIN OF IMMU-KEY

Inactive communication between NATS
antenna amp. and BCM

• Harness or connectors

(NATS antenna amp. circuit is open or
shorted.)

• NATS antenna amp.
• BCM
• Intellegent Key fob

BCM

NATS antenna amp.

Continuity

Connector

Terminal

Connector

Terminal

M80

126

M21

Yes

127

SEC-80

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

P1614 CHAIN OF IMMU-KEY

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace harness.

CHECK NATS ANTENNA AMP INPUT SIGNAL 1

1. Turn ignition switch ON.

2. Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-80, "Removal and Installation"

>> Replace NATS antenna amp. Refer to

SEC-144, "Removal and Installation"

BCM

Ground

Continuity

Connector

Terminal

M80

126

127

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

M80

126, 127

Ground

When Intelligent Key is in the
antenna detection area

When Intelligent Key is not in
the antenna detection area

JMKIA3839GB

JMKIA5951GB

B210B STARTER CONTROL RELAY

SEC-81

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

SEC

B210B STARTER CONTROL RELAY

Description

INFOID:0000000009175977

Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N or P position. It is

installed in parallel with the starter relay.

DTC Logic

INFOID:0000000009175978

DTC DETECTION LOGIC

NOTE:

• If DTC B210B is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-68, "DTC Logic"

• If DTC B210B is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-69, "DTC Logic"

DTC CONFIRMATION PROCEDURE

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

SEC-81, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175979

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self-diagnostic result” with CONSULT.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

See

PCS-20, "DTC Index"

Is the DTC B210B displayed again?

YES

>> Replace IPDM E/R. Refer to

PCS-32, "Removal and Installation"

>> Inspection End.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B210B

START CONT RLY
ON

IPDM E/R detects that the relay is stuck at ON po-
sition even if the following conditions are met for
about 1 second.
• Starter control relay ON/OFF signal from BCM
• Transmission range switch input signal

• IPDM E/R

SEC-82

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B210C STARTER CONTROL RELAY

B210C STARTER CONTROL RELAY

Description

INFOID:0000000009175980

Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N or P position. It is

installed in parallel with the starter relay.

DTC Logic

INFOID:0000000009175981

DTC DETECTION LOGIC

NOTE:

• If DTC B210C is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to

BCS-68, "DTC Logic"

• If DTC B210C is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to

BCS-69, "DTC Logic"

DTC CONFIRMATION PROCEDURE

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

SEC-82, "Diagnosis Procedure"

>> Inspection End.

Diagnosis Procedure

INFOID:0000000009175982

INSPECTION START

1. Turn ignition switch ON.

2. Check “Self-diagnostic result” with CONSULT.

3. Touch “ERASE”.

4. Perform DTC Confirmation Procedure.

Refer to

PCS-20, "DTC Index"

Is the DTC B210C displayed again?

YES

>> Replace IPDM E/R. Refer to

PCS-32, "Removal and Installation"

>> Inspection End.

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

B210C

START CONT RLY
OFF

• IPDM E/R

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