Infiniti QX56 (JA60). Manual - part 185

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PRECAUTIONS

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< PRECAUTION >

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5. When the repair work is completed, return the ignition switch to the 

″LOCK″ position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT-III. 

Precaution for Power Generation Variable Voltage Control System

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CAUTION:

For this model, the battery current sensor that is installed to the negative battery cable measures the

charging/discharging current of the battery and performs various engine controls. If an electrical com-

ponent is connected directly to the negative battery terminal, the current flowing through that compo-

nent will not be measured by the battery current sensor. This condition may cause a malfunction of

the engine control system and battery discharge may occur. Do not connect an electrical component

or ground wire directly to the battery terminal.

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< PREPARATION >

PREPARATION

PREPARATION

PREPARATION

Special Service Tool

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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

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Tool number
(Kent-Moore No.)
Tool name

Description

 —
(—) Model GR-8
Multitasking Battery Diagnostic Sta-
tion

Tests batteries, starting and charging sys-
tems.
For operating instructions, refer to diagnostic 
station instruction manual.

AWIIA1239ZZ

Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

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DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

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OVERALL SEQUENCE

AWMIA1142GB

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< FUNCTION DIAGNOSIS >

CHARGING SYSTEM

FUNCTION DIAGNOSIS

CHARGING SYSTEM

System Diagram

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System Description

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The generator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.

The voltage output is controlled by the IC regulator.

Component Description

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ALMIA0207GB

Component part

Description

Generator

Terminal “1”

Refer to 

CHG-11, "Description"

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Terminal “2”

Refer to 

CHG-12, "Description"

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Terminal “3”

Refer to 

CHG-13, "Description"

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Terminal “4”

Used for the power generation voltage variable control system. 
Refer to 

CHG-7, "System Description"

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Combination meter (Charge warning lamp)

The IC regulator warning function activates to illuminate the 
charge warning lamp if any of the following symptoms occur while 
generator is operating:
• Excessive voltage is produced.
• No voltage is produced.

IPDM E/R

Used for the power generation voltage variable control system. 
Refer to 

CHG-7, "System Description"

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