Infiniti QX56 (JA60). Manual - part 867

SEC-114

< ECU DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper

after repeating a front wiper 10 second activation and 20 second stop five times.

NOTE:

This operation status can be confirmed on the IPDM E/R “DATA MONITOR” that displays “Block” for the item

“WIP PROT” while the wiper is stopped.

STARTER MOTOR PROTECTION FUNCTION

IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains

active for 90 seconds.

DTC Index

INFOID:0000000005282722

NOTE:

The details of TIME display are as follows.

• CRNT: The malfunctions that are detected now

• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It

increases like 0 

→ 1 → 2 ··· 38 → 39 after returning to the normal condition whenever IGN OFF → ON. It is

fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is

detected again in the process.

Ignition switch

Front wiper switch

Auto stop signal

ON

OFF

Front wiper stop position signal cannot be 
input 10 seconds.

ON

The signal does not change for 10 seconds.

CONSULT-III display

Fail-safe

TIME

NOTE

Refer to

No DTC is detected.
further testing
may be required.

—

—

—

—

U1000: CAN COMM CIRCUIT

×

CRNT

1 – 39

PCS-17

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS

SEC-115

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

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F

G

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J

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M

A

B

SEC

N

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SYMPTOM DIAGNOSIS

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS

Symptom Table

INFOID:0000000005147148

NOTE:

• Before performing the diagnosis in the following table, check “

SEC-4, "Work Flow"

”. 

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• Engine cranking is enabled when the shift lever is in the "Park" position, and in the "Neutral" position only if

the brake pedal is depressed.

• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column

in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

• Engine start function is ON when setting on CONSULT-III.

• Mechanical key is not inserted in key cylinder.

• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Symptom

Diagnosis/service procedure

Reference 

page

Ignition switch does not turn on with Intelligent Key.
[LCD displays "KEY DETECTED"]

1.

Check steering lock solenoid.

DLK-99

2.

Replace Intelligent Key unit.

SEC-120

Ignition switch does not turn on with Intelligent Key.
[LCD does not display "PUSH" with arrow toward key 
cylinder]

1.

Check Intelligent Key unit power supply and ground circuit.

DLK-68

2.

Check ignition knob switch.

DLK-116

3.

Check key switch (BCM input).

DLK-115

4.

Check key switch (Intelligent Key unit input).

DLK-113

5.

Replace Intelligent Key unit.

SEC-120

Ignition switch does not turn on with Intelligent Key.
[LCD displays " NO KEY"]

1a.

Check center console area antenna (rear).

DLK-60

1b.

Check luggage area antenna.

DLK-62

1c.

Check center console area antenna (front).

DLK-64

1d.

Check overhead console area antenna.

DLK-68

2.

Replace Intelligent Key unit.

SEC-120

Ignition switch does not turn on with mechanical key

1.

Check key switch (BCM input).

DLK-115

2.

Check key switch (Intelligent Key unit input).

DLK-113

Engine cannot be cranked with transmission in "Park" 
or in "Neutral" position with brake pedal depressed.

1.

Check transmission signal.

TM-45

2.

Check stop lamp switch.

EXL-91

SEC-116

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

VEHICLE SECURITY SYSTEM SYMPTOMS

VEHICLE SECURITY SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000005147149

*: Check the system is in the armed phase.

Procedure

Diagnostic procedure

Refer to page

Symptom

1

Vehicle security sys-
tem cannot be set by 
····

Door switch

Check door switch (LF, RF, LR, RR, back) 

DLK-71

Glass ajar switch

Check glass ajar switch

DLK-129

Hood switch

Check hood switch

SEC-55

Intelligent Key

Check Intelligent Key system

DLK-106

Key cylinder switch

Check key cylinder switch

DLK-79

—

Check Intermittent Incident

GI-38

Security indicator does not turn ON.

Check vehicle security indicator

SEC-58

Check Intermittent Incident

GI-38

2

* Vehicle security 
system does not 
sound alarm when ····

Any door is opened.

Check door switch (LF, RF, LR, RR, back) 

DLK-71

Glass hatch is opened

Glass ajar switch

DLK-129

Hood is opened

Check hood switch

SEC-55

—

Check Intermittent Incident

GI-38

3

Vehicle security 
alarm does not acti-
vate.

Horn alarm

Check horn switch

—

Check Intermittent Incident

GI-38

4

Vehicle security sys-
tem cannot be can-
celed by ····

Intelligent Key

Check Intelligent Key system

DLK-106

Key cylinder switch

Check key cylinder switch

DLK-79

—

Check Intermittent Incident

GI-38

INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

SEC-117

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

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INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

Symptom Table

INFOID:0000000005147150

NOTE:

• Before performing the diagnosis in the following table, check “

SEC-4, "Work Flow"

”. 

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column

in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

• Mechanical key is not inserted into key cylinder.

• Ignition knob switch is not depressed.

Symptom

Diagnosis/service procedure

Reference page

Security indicator does not turn ON or flash.

1. Check vehicle security indicator

SEC-58

2. Check Intermittent Incident

GI-38