Infiniti QX56 (Z62). Manual — part 370

DAS

WARNING SYSTEMS ON INDICATOR CIRCUIT

DAS-517

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

C

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WARNING SYSTEMS ON INDICATOR CIRCUIT

Component Function Check

INFOID:0000000006223974

1.

CHECK WARNING SYSTEMS ON INDICATOR

1.

Turn the ignition switch ON.

2.

Select the active test item “WARNING SYSTEM IND” of “ICC/ADAS” with CONSULT-III.

3.

With operating the test item, check the operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to

DAS-517, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006223975

1.

CHECK WARNING ON INDICATOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect twin switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between twin switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the warning systems ON indicator power supply circuit.

2.

CHECK WARNING SYSTEMS ON INDICATOR SIGNAL FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect the ADAS control unit harness connector.

3.

Check continuity between the ADAS control unit harness connector and twin switch harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK WARNING SYSTEMS ON INDICATOR SIGNAL CIRCUIT FOR SHORT

Check continuity between the ADAS control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

On

: Warning systems ON indicator illuminates

Off

: Warning systems ON indicator is turned OFF

Terminals

Voltage

(Approx.)

(+)

(

−

)

Twin switch

Ground

Connector

Terminal

M127

8

Battery voltage

ADAS control unit

Twin switch

Continuity

Connector

Terminal

Connector

Terminal

B61

4

M127

9

Existed

ADAS control unit

Ground

Continuity

Connector

Terminal

B61

4

Not existed

DAS-518

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

WARNING SYSTEMS ON INDICATOR CIRCUIT

NO

>> Repair the harnesses or connectors.

4.

CHECK WARNING SYSTEMS ON INDICATOR

Check the warning systems ON indicator. Refer to

DAS-518, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace the ADAS control unit. Refer to

DAS-63, "Removal and Installation"

.

NO

>> Replace warning systems switch.

DAS-404, "Removal and Installation"

.

Component Inspection

INFOID:0000000006223976

1.

CHECK WARNING SYSTEMS ON INDICATOR

Apply battery voltage to warning systems switch terminals 8 and 9, and then check if the warning systems ON
indicator illuminates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace the warning systems switch. Refer to

DAS-404, "Removal and Installation"

.

Terminals

Condition

Driver warning

systems ON in-

dicator

(+)

(-)

8

9

When the battery voltage is applied

On

When the battery voltage is not applied

Off

DAS

WARNING BUZZER CIRCUIT

DAS-519

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

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WARNING BUZZER CIRCUIT

Component Function Check

INFOID:0000000006223977

1.

CHECK WARNING BUZZER

1.

Turn the ignition switch ON.

2.

Select the active test item “LDP BUZZER” of “ICC/ADAS” with CONSULT-III.

3.

With operating the test item, check the operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to

DAS-393, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006223978

1.

CHECK WARNING BUZZER POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect the warning buzzer connector.

3.

Turn ignition switch ON.

4.

Check voltage between the warning buzzer harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the warning buzzer power supply circuit.

2.

CHECK WARNING BUZZER GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between the warning buzzer harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK WARNING BUZZER SIGNAL CIRCUIT FOR OPEN

1.

Disconnect the ADAS control unit connector.

2.

Check continuity between the ADAS control unit harness connector and warning buzzer harness connec-
tor.

Is the inspection result normal?

On

: Warning buzzer is activated.

Off

: Warning buzzer is not activated.

Terminals

Voltage

(Approx.)

(+)

(

−

)

Warning buzzer

Ground

Connector

Terminal

M94

1

Battery voltage

Warning buzzer

Ground

Continuity

Connector

Terminal

M94

3

Existed

ADAS control unit

Warning buzzer

Continuity

Connector

Terminal

Connector

Terminal

B61

12

M94

2

Existed

DAS-520

< DTC/CIRCUIT DIAGNOSIS >

[BSW]

WARNING BUZZER CIRCUIT

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK WARNING BUZZER SIGNAL CIRCUIT FOR SHORT

Check continuity between the ADAS control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harnesses or connectors.

5.

CHECK WARNING BUZZER OPERATION

1.

Connect the warning buzzer connector.

2.

Turn ignition switch ON.

3.

Apply ground to warning buzzer terminal 2.

4.

Check condition of the warning buzzer.

Does warning buzzer sound?

YES

>> Replace the ADAS control unit.

NO

>> Replace the warning buzzer.

ADAS control unit

Ground

Continuity

Connector

Terminal

M61

12

Not existed